[go: up one dir, main page]

WO2022045400A1 - Dispositif d'entraînement de moteur et véhicule le comportant - Google Patents

Dispositif d'entraînement de moteur et véhicule le comportant Download PDF

Info

Publication number
WO2022045400A1
WO2022045400A1 PCT/KR2020/011527 KR2020011527W WO2022045400A1 WO 2022045400 A1 WO2022045400 A1 WO 2022045400A1 KR 2020011527 W KR2020011527 W KR 2020011527W WO 2022045400 A1 WO2022045400 A1 WO 2022045400A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching element
inverter
motor
phase
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/011527
Other languages
English (en)
Korean (ko)
Inventor
엘로세귀파블로
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Magna E Powertrain Co Ltd
Original Assignee
LG Magna E Powertrain Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Magna E Powertrain Co Ltd filed Critical LG Magna E Powertrain Co Ltd
Priority to KR1020237008688A priority Critical patent/KR20230052283A/ko
Priority to PCT/KR2020/011527 priority patent/WO2022045400A1/fr
Publication of WO2022045400A1 publication Critical patent/WO2022045400A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/22—Multiple windings; Windings for more than three phases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to a motor driving device and a vehicle having the same, and more particularly, to a motor driving device capable of reducing the size of an inverter and the number of switching of the inverter, and a vehicle having the same.
  • An electric vehicle powered by electricity, an internal combustion engine and a hybrid vehicle combining these, etc. use a motor and a battery to generate the output.
  • a motor driving device for driving the motor with an AC power is required.
  • a motor drive device is provided with the inverter etc. which are provided with a some switching element.
  • the inverter requires the number of switching elements according to the number of phases when the motor is a polyphase motor.
  • An object of the present invention is to provide a motor driving apparatus capable of reducing the size of an inverter and the number of switching of the inverter, and a vehicle having the same.
  • Another object of the present invention is to provide a motor driving device capable of reducing the signal processing burden of an inverter controller, and a vehicle having the same.
  • a motor driving apparatus and a vehicle having the same for achieving the above object include a motor and an inverter for outputting AC power to the motor, the motor includes a 6-phase motor, and the inverter includes three legs connected in parallel to each other, and each leg includes three switching elements connected in series.
  • the inverter the first switching element arranged on the first leg, the second switching element arranged on the second leg, the third switching element arranged on the third leg, the first end is connected to one end of the first switching element 4 switching element, a fifth switching element having one end connected to one end of the second switching element, a sixth switching element having one end connected to one end of the third switching element, a seventh switching element connected to the other end of the fourth switching element, It may include an eighth switching element connected to the other end of the fifth switching element, and a ninth switching element connected to the other end of the sixth switching element.
  • the sixth node between may be connected to the second terminal of the motor.
  • the motor includes a first node between the first switching element and the fourth switching element, and between the neutral point of the motor, a first winding wound and a second node between the second switching element and the fifth switching element, Between the neutral point of the motor, a second winding wound, a third node between the third switching element and the sixth switching element, and between the neutral point of the motor, a third winding wound, a fourth switching element and a seventh switching element a fourth winding wound between the fourth node between the elements and the neutral point of the motor, a fifth node between the fifth switching element and the eighth switching element and a fifth winding wound between the neutral point of the motor; Between the sixth node between the sixth switching element and the ninth switching element and the neutral point of the motor, a sixth winding may be wound.
  • the fourth switching element when the first switching element of the first leg is off, the fourth switching element is on, and the seventh switching element is on, the first phase voltage of the first winding is a low level, and the fourth phase voltage of the fourth winding is It may be a low level.
  • the first switching element of the first leg when the first switching element of the first leg is on, the fourth switching element is off, and the seventh switching element is on, the first phase voltage of the first winding is a high level, and the fourth phase voltage of the fourth winding is It may be a low level.
  • the first switching element of the first leg when the first switching element of the first leg is on, the fourth switching element is on, and the seventh switching element is off, the first phase voltage of the first winding is a high level, and the fourth phase voltage of the fourth winding is may be a high level.
  • the motor driving apparatus and a vehicle having the same, further include an inverter control unit for controlling the inverter, the inverter control unit, based on the input AC voltage, the DC offset, and the reference voltage waveform , a first comparator and a second comparator each outputting a first comparison signal and a second comparison signal, and an exclusive OR based on the first comparison signal from the first comparator and the second comparison signal from the second comparator It may include a logic operator for performing an (exclusive OR) operation, a first inverter for inverting an output signal from the logic operator, and a second inverter for inverting the second comparison signal.
  • the inverter control unit outputs the first comparison signal to the first switching element, the output signal from the first inverter to the fourth switching element, and the output signal from the second inverter to the seventh switching element can be printed on
  • the motor driving apparatus and a vehicle having the same, further include an inverter controller for controlling the inverter, wherein the inverter controller includes a six-phase voltage converter that converts an input voltage of three phases into a voltage of six phases. and a 9-phase switching signal output unit for outputting a 9-phase switching control signal based on the voltage of the 6-phase.
  • the inverter controller includes a six-phase voltage converter that converts an input voltage of three phases into a voltage of six phases.
  • a 9-phase switching signal output unit for outputting a 9-phase switching control signal based on the voltage of the 6-phase.
  • the six-phase voltage converter includes a first comparator and a second comparator each outputting a first comparison signal and a second comparison signal based on a 3-phase input voltage, a DC offset, and a reference voltage waveform
  • the phase switching signal output unit includes a logic operator performing an exclusive OR operation based on a first comparison signal from the first comparator and a second comparison signal from the second comparator, and an output from the logic operator It may include a first inverter for inverting the signal, and a second inverter for inverting the second comparison signal.
  • the 9-phase switching signal output unit outputs the first comparison signal to the first switching element, the second switching element, or the third switching element, and outputs the output signal from the first inverter to the fourth switching element or the fifth switching element It is output to the element or the sixth switching element, and the output signal from the second inverter may be output to the seventh switching element, the eighth switching element, or the ninth switching element.
  • the motor driving apparatus and a vehicle having the same, further include an inverter controller for controlling the inverter, and the inverter controller may control the inverter based on 27 pattern signals.
  • a motor driving apparatus and a vehicle having the same include a motor and an inverter outputting AC power to the motor, the motor includes a 6-phase motor, and the inverter is connected in parallel to each other It comprises three legs, each leg comprising three switching elements connected in series. Accordingly, it is possible to reduce the size of the inverter and the number of times the inverter is switched.
  • the inverter the first switching element arranged on the first leg, the second switching element arranged on the second leg, the third switching element arranged on the third leg, the first end is connected to one end of the first switching element 4 switching element, a fifth switching element having one end connected to one end of the second switching element, a sixth switching element having one end connected to one end of the third switching element, a seventh switching element connected to the other end of the fourth switching element, It may include an eighth switching element connected to the other end of the fifth switching element, and a ninth switching element connected to the other end of the sixth switching element. Accordingly, it is possible to reduce the size of the inverter and the number of times the inverter is switched.
  • the sixth node between may be connected to the second terminal of the motor. Accordingly, it is possible to reduce the size of the inverter and the number of times the inverter is switched.
  • the motor includes a first node between the first switching element and the fourth switching element, and between the neutral point of the motor, a first winding wound and a second node between the second switching element and the fifth switching element, Between the neutral point of the motor, a second winding wound, a third node between the third switching element and the sixth switching element, and between the neutral point of the motor, a third winding wound, a fourth switching element and a seventh switching element a fourth winding wound between the fourth node between the elements and the neutral point of the motor, a fifth node between the fifth switching element and the eighth switching element and a fifth winding wound between the neutral point of the motor; Between the sixth node between the sixth switching element and the ninth switching element and the neutral point of the motor, a sixth winding may be wound. Accordingly, it is possible to reduce the size of the inverter and the number of times the inverter is switched.
  • the first switching element of the first leg is off, the fourth switching element is on, and the seventh switching element is on, the first phase voltage of the first winding is a low level, and the fourth phase voltage of the fourth winding is It may be a low level. Accordingly, it is possible to reduce the size of the inverter and the number of times the inverter is switched.
  • the first switching element of the first leg when the first switching element of the first leg is on, the fourth switching element is off, and the seventh switching element is on, the first phase voltage of the first winding is a high level, and the fourth phase voltage of the fourth winding is It may be a low level. Accordingly, it is possible to reduce the size of the inverter and the number of times the inverter is switched.
  • the first switching element of the first leg is on, the fourth switching element is on, and the seventh switching element is off, the first phase voltage of the first winding is a high level, and the fourth phase voltage of the fourth winding is may be a high level. Accordingly, it is possible to reduce the size of the inverter and the number of times the inverter is switched.
  • the motor driving apparatus and a vehicle having the same, further include an inverter control unit for controlling the inverter, the inverter control unit, based on the input AC voltage, the DC offset, and the reference voltage waveform , a first comparator and a second comparator each outputting a first comparison signal and a second comparison signal, and an exclusive OR based on the first comparison signal from the first comparator and the second comparison signal from the second comparator It may include a logic operator for performing an (exclusive OR) operation, a first inverter for inverting an output signal from the logic operator, and a second inverter for inverting the second comparison signal. Accordingly, it is possible to reduce the signal processing burden of the inverter control unit.
  • the inverter control unit outputs the first comparison signal to the first switching element, the output signal from the first inverter to the fourth switching element, and the output signal from the second inverter to the seventh switching element can be printed on Accordingly, it is possible to reduce the signal processing burden of the inverter control unit.
  • the motor driving apparatus and a vehicle having the same, further include an inverter controller for controlling the inverter, wherein the inverter controller includes a six-phase voltage converter that converts an input voltage of three phases into a voltage of six phases. and a 9-phase switching signal output unit for outputting a 9-phase switching control signal based on the voltage of the 6-phase. Accordingly, it is possible to reduce the signal processing burden of the inverter control unit.
  • the six-phase voltage converter includes a first comparator and a second comparator each outputting a first comparison signal and a second comparison signal based on a 3-phase input voltage, a DC offset, and a reference voltage waveform
  • the phase switching signal output unit includes a logic operator performing an exclusive OR operation based on a first comparison signal from the first comparator and a second comparison signal from the second comparator, and an output from the logic operator It may include a first inverter for inverting the signal, and a second inverter for inverting the second comparison signal. Accordingly, it is possible to reduce the signal processing burden of the inverter control unit.
  • the 9-phase switching signal output unit outputs the first comparison signal to the first switching element, the second switching element, or the third switching element, and outputs the output signal from the first inverter to the fourth switching element or the fifth switching element It is output to the element or the sixth switching element, and the output signal from the second inverter may be output to the seventh switching element, the eighth switching element, or the ninth switching element. Accordingly, it is possible to reduce the signal processing burden of the inverter control unit.
  • the motor driving apparatus and a vehicle having the same, further include an inverter controller for controlling the inverter, and the inverter controller may control the inverter based on 27 pattern signals. Accordingly, it is possible to reduce the signal processing burden of the inverter control unit.
  • FIG. 1 is a schematic diagram illustrating a body of a vehicle according to an embodiment of the present invention.
  • FIG. 2 is an example of a motor driving system according to an embodiment of the present invention.
  • FIG. 3 illustrates an example of an internal block diagram of the motor driving apparatus of FIG. 2 .
  • FIG. 4 is an example of an internal circuit diagram of the motor driving device of FIG. 3 .
  • FIG. 5 is an example of an internal block diagram of the inverter control unit of FIG. 4 .
  • FIG. 6 is an example of an internal circuit diagram of a motor driving apparatus related to the present invention.
  • FIG. 7 is an example of an internal circuit diagram of a motor driving apparatus according to an embodiment of the present invention.
  • FIG. 8 to 11C are diagrams referred to in the description of FIG. 6 or FIG. 7 .
  • module and “part” for the components used in the following description are given simply in consideration of the ease of writing the present specification, and do not impart a particularly important meaning or role by themselves. Accordingly, the terms “module” and “unit” may be used interchangeably.
  • FIG. 1 is a schematic diagram illustrating a body of a vehicle according to an embodiment of the present invention.
  • a vehicle 100 includes a battery 205 for supplying power, a motor driving device 200 receiving power from the battery 205 , and a motor driving device 200 .
  • the motor 250 driven and rotated by the motor 250, the front wheel 150 and the rear wheel 155 rotated by the motor 250, the front wheel suspension 160 and the rear wheel suspension for blocking vibration of the road surface from being transmitted to the vehicle body
  • an inclination angle detection unit 190 for detecting an inclination angle of the vehicle body may be included.
  • a driving gear (not shown) for converting the rotation speed of the motor 250 based on the gear ratio may be additionally provided.
  • the inclination angle detection unit 190 detects an inclination angle of the vehicle body, and the detected inclination angle is input to an electronic control unit 410 to be described later.
  • the inclination angle detection unit 190 may be implemented as a gyro sensor or a horizontal gauge sensor.
  • the inclination angle detection unit 190 is illustrated as being disposed on the battery 205 , but is not limited thereto, and may be disposed on the front wheel 150 , the rear wheel 155 , or both the front wheel 150 and the rear wheel 155 . there is.
  • the battery 205 supplies power to the motor driving device 200 .
  • DC power is supplied to the capacitor C in the motor driving device 200 .
  • the battery 205 may be formed as a set of a plurality of unit cells.
  • the plurality of unit cells may be managed by a battery management system (BMS) to maintain a constant voltage, and may emit a constant voltage by the battery management system.
  • BMS battery management system
  • the battery management system may detect the voltage Vbat of the battery 205 and transmit it to an electronic control unit (not shown) or the inverter control unit 250 in the motor driving device 200, and the battery voltage When (Vbat) falls below the lower limit, the DC power stored in the capacitor C in the motor driving apparatus 200 may be supplied to the battery. Also, when the battery voltage Vbat rises above the upper limit, DC power may be supplied to the capacitor C in the motor driving apparatus 200 .
  • the battery 205 is preferably composed of a rechargeable battery capable of charging and discharging, but is not limited thereto.
  • the motor driving device 200 receives DC power from the battery 205 through the power input cable 120 .
  • the motor driving device 200 converts DC power received from the battery 205 into AC power and supplies it to the motor 250 .
  • the converted AC power is preferably a three-phase AC power.
  • the motor driving device 200 supplies three-phase AC power to the motor 250 through the three-phase output cable 125 provided in the motor driving device 200 .
  • the converted AC power is preferably a 6-phase AC power.
  • the motor driving device 200 may supply 6-phase AC power to the motor 250 through the 6-phase output cable 125 provided in the motor driving device 200 .
  • the motor driving apparatus 200 of FIG. 1 illustrates the three-phase output cable 125 composed of three cables
  • the present invention is not limited thereto, and a corresponding number of cables may be provided according to the number of phases of the polyphase motor. Alternatively, a plurality of cables may be provided in a single cable.
  • the motor 250 includes a stator 130 that is fixed without rotating and a rotor 135 that rotates.
  • the motor 250 is provided with an input cable 140 to receive AC power supplied from the motor driving device 200 .
  • the motor 250 may be, for example, a polyphase motor, and when each phase AC power of variable voltage/frequency variable is applied to the coils of the stator of each phase, the rotational speed of the rotor is variable based on the applied frequency will do
  • the motor 250 may have various forms, such as an induction motor, a blushless DC motor, and a reluctance motor.
  • a driving gear (not shown) may be provided on one side of the motor 250 .
  • the driving gear converts the rotational energy of the motor 250 based on the gear ratio.
  • the rotational energy output from the driving gear is transmitted to the front wheel 150 and/or the rear wheel 155 so that the vehicle 100 moves.
  • the front wheel suspension 160 and the rear wheel suspension 165 support the front wheel 150 and the rear wheel 155 with respect to the vehicle body, respectively.
  • the vertical direction of the front wheel suspension 160 and the rear wheel suspension 165 is supported by a spring or a damping mechanism to prevent vibration of the road surface from contacting the vehicle body.
  • a steering device (not shown) may be further provided on the front wheel 150 .
  • the steering device is a device for controlling the direction of the front wheel 150 in order to drive the vehicle 100 in a direction intended by the driver.
  • the vehicle 100 may further include an electronic controller for controlling electronic devices throughout the vehicle.
  • the electronic control unit (not shown) controls each device to operate, display, and the like.
  • the above-described battery management system may be controlled.
  • the electronic control unit includes an inclination angle detecting unit (not shown) for detecting the inclination angle of the vehicle 100 , a speed detecting unit detecting the speed of the vehicle 100 (not shown), and a brake detecting unit according to the operation of the brake pedal ( (not shown), a driving command value according to various driving modes (driving mode, reverse mode, neutral mode, and parking mode, etc.) can
  • the driving command value may be, for example, a torque command value or a torque command value.
  • the vehicle 100 may be a concept including a pure electric vehicle using a battery and a motor, of course, a hybrid electric vehicle using a battery and a motor while using an engine.
  • the hybrid electric vehicle may further include a switching means for selecting at least one of a battery and an engine, and a transmission.
  • hybrid electric vehicles include a series method for driving a motor by converting mechanical energy output from an engine into electrical energy, a parallel method using mechanical energy output from the engine and electrical energy from a battery at the same time, and a direct method for mixing them. can be divided in a parallel fashion.
  • FIG. 2 is an example of a motor driving system according to an embodiment of the present invention.
  • the motor driving system 10 may include a vehicle 100 and a server 500 .
  • the server 500 may be a server operated by the manufacturer of the motor driving device 200 or the vehicle 100 , or may correspond to a mobile terminal of the driver of the motor driving device 200 or the vehicle 100 .
  • the vehicle 100 may include an input unit 120 , a communication unit 130 , a memory 140 , a control unit 170 , and a motor driving unit 200 .
  • the input unit 120 includes a manipulation button, a key, and the like, and may output an input signal for turning on/off the power of the vehicle 100 , setting an operation, and the like.
  • the communication unit 130 may exchange data with a peripheral device, for example, the server 500 by wire or wirelessly, or wirelessly exchange data with a remote server or the like.
  • a peripheral device for example, the server 500 by wire or wirelessly, or wirelessly exchange data with a remote server or the like.
  • mobile communication such as 4G or 5G, infrared (IR) communication, RF communication, Bluetooth communication, Zigbee communication, WiFi communication, etc. may be performed.
  • the memory 140 of the vehicle 100 may store data necessary for the operation of the vehicle 100 . For example, data about an operation time, an operation mode, and the like when the driving unit 200 is operated may be stored.
  • the memory 140 of the vehicle 100 may store management data including vehicle power consumption information, recommended driving information, current driving information, and management information.
  • the memory 140 of the vehicle 100 may store diagnostic data including vehicle operation information, driving information, and error information.
  • the controller 170 may control each unit in the vehicle 100 .
  • the control unit 170 may control the input unit 120 , the communication unit 130 , the memory 140 , the driving unit 200 , and the like.
  • the motor driving unit 200 may be referred to as a motor driving device as a driving unit to drive the motor 250 .
  • the motor driving apparatus 200 includes a plurality of switching elements, an inverter 420 for outputting AC power to the motor 250 , and an output current io flowing through the motor 250 .
  • the output current detection unit E for detecting It may include an inverter control unit 430 that outputs a switching control signal.
  • the current information (id,iq) and the torque command value (T * ) based on the output current (io) may be transmitted to the external server 500, and the current command value (i * d,i) from the server 500 * q) may be received. Also, based on the current command value received from the communication unit 130 , the inverter control unit 430 may output a switching control signal to the inverter 420 .
  • the communication unit 130 in the motor driving device 200 may transmit current information (id, iq), the torque command value (T * ), and voltage information related to the detected dc terminal voltage (Vdc) to the server 500 . Accordingly, it is possible to drive the maximum torque of the motor 250 under various conditions.
  • FIG. 3 illustrates an example of an internal block diagram of the motor driving apparatus of FIG. 2 .
  • the motor driving device 200 is a driving device for driving the motor 250 and includes a plurality of switching elements Sa to Sc and S'a to S'c. and may include an inverter 420 that outputs AC power to the motor 250 and an inverter control unit 430 that controls the inverter 420, and provides various stored data to the inverter control unit 430 It may include a memory 270 that does.
  • the motor driving apparatus 200 may further include a voltage detecting unit (B) and an output current detecting unit (E) detecting an output current flowing through the motor 250 .
  • the motor 250 may be a three-phase motor driven by the inverter 420 .
  • the inverter control unit 430 may output the switching control signal Sic to the inverter 420 based on the current command value (i * d, i * q) corresponding to the calculated maximum torque. Maximum torque driving of the motor 250 is enabled.
  • the inverter control unit 430 calculates the current information (id,iq) and the torque command value (T * ) in real time, and based on the torque command value (T * ), the current command value (i * d) , i * q) is calculated, and the motor 250 is driven using the current command value (i * d, i * q). Accordingly, the accuracy for high-efficiency driving is improved.
  • the motor driving device 200, the capacitor (C) for storing the dc terminal voltage (Vdc) that is the input terminal of the inverter 420, and the dc terminal voltage detection unit (B) for detecting the dc terminal voltage (Vdc) further may include
  • the inverter control unit 430 calculates the current command value (i * d, i * q) based on the current information (id,iq), the torque command value (T * ), and the detected dc terminal voltage (Vdc), The motor 250 is driven using the current command value (i * d, i * q). Accordingly, the accuracy for high-efficiency driving is improved.
  • FIG. 4 is an example of an internal circuit diagram of the motor driving device of FIG. 3 .
  • the motor driving apparatus 200 includes an inverter 420 , an inverter control unit 430 , an output current detection unit E, a dc terminal voltage detection unit Vdc, and a position detection unit. It may include a sensor 105 .
  • the motor driving device 200 converts electric power and drives the motor, so it may be referred to as a power change device.
  • the dc terminal capacitor C stores power input to the dc terminal (a-b terminals).
  • one element is exemplified as a dc terminal capacitor (C), but a plurality of elements may be provided to ensure element stability.
  • the input power supplied to the dc terminal capacitor C may be power stored in the battery 205 or power level-converted in a converter (not shown).
  • the dc terminal voltage detector B may detect the dc terminal voltage Vdc that is both ends of the dc terminal capacitor C. To this end, the dc terminal voltage detection unit B may include a resistance element, an amplifier, and the like. The detected dc terminal voltage Vdc may be input to the inverter controller 430 as a discrete signal in the form of a pulse.
  • the inverter 420 includes three legs connected in parallel to each other, and each leg includes three switching elements connected in series.
  • the inverter 420 includes a first switching device S1 disposed on a first leg, a second switching device S2 disposed on a second leg, and a third switching device S3 disposed on a third leg. , a fourth switching element S4 having one end connected to one end n14 of the first switching element S1 , and a fifth switching element S5 having one end connected to one end n25 of the second switching element S2 , a sixth switching element S6 having one end connected to one end n36 of the third switching element S3, a seventh switching element S7 connected to the other end of the fourth switching element S4, and a fifth switching element An eighth switching element S8 connected to the other end of S5 and a ninth switching element S9 connected to the other end of the sixth switching element S6 may be included.
  • a first switching element (S1), a fourth switching element (S4), and a seventh switching element (S7) are disposed on the first leg, and the second switching element (S2) and the fifth switching element (S5) are disposed on the second leg ), an eighth switching element S8 is disposed, and a third switching device S3 , a sixth switching device S6 , and a ninth switching device S9 may be disposed on the third leg.
  • the inverter 420 is provided with a plurality of inverter switching elements (S1 to S9), the DC power supply (Vdc) by the on / off operation of the switching elements (S1 to S9) a six-phase AC power supply of a predetermined frequency ( Va, Vb, Vc, Vd, Ve, Vf) can be converted and output to the 6-phase synchronous motor 250 .
  • the switching elements in the inverter 420 turn on/off the respective switching elements based on the inverter switching control signal Sic from the inverter controller 430 . Accordingly, the six-phase AC power having a predetermined frequency is output to the six-phase synchronous motor 250 .
  • the inverter controller 430 may control the switching operation of the inverter 420 based on the sensorless method.
  • the inverter control unit 430 may receive the output current io detected by the output current detection unit E as an input.
  • the inverter controller 430 may output the inverter switching control signal Sic to each gate terminal of the inverter 420 in order to control the switching operation of the inverter 420 . Accordingly, the inverter switching control signal Sic may be referred to as a gate driving signal.
  • the inverter switching control signal Sic is a pulse width modulation (PWM) switching control signal, and is generated and output based on the output current io detected by the output current detection unit E.
  • PWM pulse width modulation
  • the output current detection unit E detects an output current io flowing between the inverter 420 and the six-phase motor 250 . That is, the current flowing through the motor 250 may be detected.
  • the output current detection unit E may detect all of the output currents ia, ib, ic, id, ie, if of each phase, or may detect the output currents of some phases using six-phase balance.
  • the output current detection unit E may be located between the inverter 420 and the motor 250 , and a current transformer (CT), a shunt resistor, or the like may be used to detect the current.
  • CT current transformer
  • the detected output current io may be applied to the inverter controller 430 as a discrete signal in the form of a pulse, and a switching control signal Sic is generated based on the detected output current io .
  • the six-phase motor 250 includes a stator and a rotor, and each phase AC power supply of a predetermined frequency to the coil of the stator of each phase (a, b, c, d, e, f phase) This is applied, and the rotor rotates.
  • the motor 250 includes, for example, a Surface-Mounted Permanent-Magnet Synchronous Motor (SMPMSM), an Interior Permanent Magnet Synchronous Motor (IPMSM), and a synchronous relay. It may include a Synchronous Reluctance Motor (Synrm) and the like. Among them, SMPMSM and IPMSM are Permanent Magnet Synchronous Motors (PMSM) to which permanent magnets are applied, and Synrm is characterized by not having permanent magnets.
  • SMPMSM Surface-Mounted Permanent-Magnet Synchronous Motor
  • IPMSM Interior Permanent Magnet Synchronous Motor
  • Synrm Synchronous Reluctance Motor
  • the motor 250 is a six-phase motor, and in particular, a current superimposition variable flux reluctance motor (CSVFM) will be mainly described.
  • CSVFM current superimposition variable flux reluctance motor
  • FIG. 5 is an example of an internal block diagram of the inverter control unit of FIG. 4 .
  • the inverter control unit 430 of FIG. 5 receives the detected output current io from the output current detection unit 320 , and receives the rotor position information of the motor 250 from the position detection sensor 105 . ( ⁇ ) can be received.
  • the position detection sensor 105 may detect the magnetic pole position ⁇ of the rotor of the motor 250 . That is, the position detection sensor 105 may detect the position of the rotor of the motor 250 .
  • the position detection sensor 105 may include an encoder or a resolver.
  • the ⁇ coordinate system is a two-dimensional fixed coordinate system having ⁇ and ⁇ axes as fixed axes as axes.
  • the ⁇ and ⁇ axes are orthogonal to each other, and the ⁇ axis leads from the ⁇ axis by an electrical angle of 90°.
  • the dq coordinate system is a two-dimensional rotational coordinate system with d and q axes as the rotation axes.
  • the axis according to the direction of the magnetic flux created by the permanent magnet is the d-axis, and the axis with an electrical angle of 90 ⁇ from the d-axis is q wet.
  • the inverter control unit 430 includes a speed calculating unit 320 , a shaft converting unit 310 , a torque calculating unit 325 , a current command generating unit 330 , a voltage command generating unit 340 , and an axis converting unit. It may include a unit 350 and a switching control signal output unit 360 .
  • the axis conversion unit 310 in the inverter control unit 430 receives the three-phase output current (ia, ib, ic, id, ie, if) detected by the output current detection unit E, and receives the two-phase current ( i ⁇ ,i ⁇ ).
  • the axis conversion unit 310 may convert the two-phase currents (i ⁇ , i ⁇ ) of the stationary coordinate system into the two-phase currents (id, iq) of the rotational coordinate system.
  • the speed calculating unit 320 in the inverter control unit 430 estimates the rotor position ( . In addition, based on the estimated rotor position (), it is possible to output the calculated speed ().
  • the torque calculator 325 in the inverter controller 430 may calculate the current torque T based on the calculated speed ?
  • the current command generating unit 330 in the inverter control unit 430 generates a current command value (i * d, i * q) based on the calculated current torque T and the torque command value T * .
  • the current command generation unit 330 performs PI control in the PI controller 335 based on the calculated current torque T and the torque command value T * , and the current command value i * d ,i * q) can be created.
  • the value of the d-axis current command value (i * d) may be set to 0.
  • the current command generation unit 330, the current command value (i * d, i * q) may further include a limiter (not shown) for limiting the level so as not to exceed the allowable range.
  • the voltage command generation unit 340 includes the d-axis and q-axis currents (id, iq) that are axis-transformed into the two-phase rotational coordinate system by the axis transformation unit, and the current command value (i * ) from the current command generation unit 330 , etc. d,i * q), d-axis and q-axis voltage command values (V * d, V * q) are generated.
  • the voltage command generation unit 340 performs PI control in the PI controller 344 based on the difference between the q-axis current iq and the q-axis current command value (i * q), and the q-axis current command value (i * q).
  • a voltage setpoint (V * q) can be generated.
  • the voltage command generation unit 340 performs PI control in the PI controller 348 based on the difference between the d-axis current id and the d-axis current command value (i * d), and the d-axis voltage command value (V * d) can be created.
  • the value of the d-axis voltage command value (V * d) may be set to 0 corresponding to the case where the value of the d-axis current command value (i * d) is set to 0.
  • the voltage command generation unit 340, d-axis, q-axis voltage command values (V * d, V * q) may further include a limiter (not shown) for limiting the level so as not to exceed the allowable range. .
  • the generated d-axis and q-axis voltage command values (V * d, V * q) are input to the axis conversion unit 350 .
  • the axis conversion unit 350 receives the position ( ) calculated by the speed calculating unit 320 and the d-axis and q-axis voltage command values (V * d, V * q), and performs the axis conversion.
  • the axis transformation unit 350 performs transformation from a two-phase rotational coordinate system to a two-phase stationary coordinate system.
  • the position ( ) calculated by the speed calculating unit 320 may be used.
  • the axis transformation unit 350 performs transformation from the two-phase stationary coordinate system to the six-phase stationary coordinate system.
  • the shaft conversion unit 350 outputs a six-phase output voltage command value (V * a, V * b, V * c, V * d, V * e, V * f).
  • the switching control signal output unit 360 is a pulse width modulation (PWM) method based on the six-phase output voltage command value (V * a,V * b, V * c, V * d, V * e, V * f) It is possible to generate and output a switching control signal Sic according to
  • the output inverter switching control signal Sic may be converted into a gate driving signal by a gate driver (not shown) and input to the gate of each switching element in the inverter 420 . Accordingly, each of the switching elements S1 to S9 in the inverter 420 performs a switching operation.
  • FIG. 6 is an example of an internal circuit diagram of a motor driving apparatus related to the present invention.
  • the motor driving device 200x related to the present invention may include an inverter 420x having 12 switching elements and a 6-phase motor 2500 .
  • the inverter 420x includes a plurality of inverter switching elements Sa to Sf, S'a to S'f, and by on/off operation of the switching elements Sa to Sf, S'a to S'f
  • the DC power supply (Vdc) may be converted into 6-phase AC power supply (Va, Vb, Vc, Vd, Ve, Vf) of a predetermined frequency, and output to the 6-phase synchronous motor 250 .
  • a diode is connected in antiparallel to each of the switching elements Sa, S'a, Sb, S'b, Sc, S'c, Sd, S'd, Se, S'e, Sf, S'f.
  • the first winding La as the a-phase winding
  • the second winding as the b-phase winding (Lb) is wound, between the node (nc) between the third upper arm switching element (Sc) and the third lower arm switching element (S'c) and the midpoint (nn) of the motor 250, the c-phase winding
  • the third winding Lc is wound, and between the node nd between the fourth upper arm switching element Sd and the fourth lower arm switching element S'd and the midpoint nn of the motor 250, d
  • the fourth winding Ld which is a phase winding, is wound, and between the node ne between the fifth upper-arm switching element Se and the fifth lower-
  • the inverter 420x 12 switching elements are required, and 64 switching patterns are required for switching of the 12 switching elements. Accordingly, the size of the inverter 420x is increased, and the switching pattern of the inverter 420x is significant.
  • the present invention proposes an inverter 420 capable of efficiently driving the six-phase motor 250 . This will be described below with reference to FIG. 7 .
  • FIG. 7 is an example of an internal circuit diagram of a motor driving apparatus according to an embodiment of the present invention.
  • the motor driving apparatus 200 includes a motor 250 and an inverter 420 for outputting AC power to the motor 250, and the motor 250 includes: A six-phase motor 250 is included, and the inverter 420 includes three legs connected in parallel to each other, and each leg includes three switching elements connected in series.
  • the inverter 420 of FIG. 7 includes nine switching elements, the number of switching is reduced compared to the inverter 420x of FIG. 6 , and consequently, the size of the inverter 420 can be reduced.
  • the switching pattern of the inverter 420 of FIG. 7 has 27 switching patterns for 9 switching elements, but the switching pattern of the inverter 420x of FIG. 6 has 64 switching patterns for 12 switching elements have a pattern.
  • the inverter 420 of FIG. 7 it is possible to reduce the switching pattern and reduce the number of switching.
  • the inverter 420 the first switching device (S1) disposed on the first leg, the second switching device (S2) disposed on the second leg, the third switching device (S3) disposed on the third leg, A fourth switching element (S4) having one end connected to one end (n14) of the first switching element (S1), a fifth switching element (S5) having one end connected to one end (n25) of the second switching element (S2); A sixth switching element S6 having one end connected to one end n36 of the third switching element S3, a seventh switching element S7 connected to the other end of the fourth switching element S4, a fifth switching element ( It may include an eighth switching element S8 connected to the other end of S5 and a ninth switching element S9 connected to the other end of the sixth switching element S6. Accordingly, the size of the inverter 420 and the number of times the inverter 420 is switched can be reduced.
  • the first node n14 between the first switching element S1 and the fourth switching element S4 and the second node n25 between the second switching element S2 and the fifth switching element S5 and the third node n36 between the third switching element S3 and the sixth switching element S6 is connected to the first terminal of the motor 250, and the fourth switching element S4 and the seventh switching element S4
  • a sixth node n69 between the elements S9 may be connected to a second terminal of the motor 250 . Accordingly, the size of the inverter 420 and the number of times the inverter 420 is switched can be reduced.
  • the motor 250 between the first node n14 between the first switching element S1 and the fourth switching element S4 and the neutral point nn of the motor 250 , the first winding wound (La) and the second node (n25) between the second switching element (S2) and the fifth switching element (S5), and between the neutral point (nn) of the motor 250, the winding second winding (Lb) And, between the third node (n36) between the third switching element (S3) and the sixth switching element (S6) and the neutral point (nn) of the motor 250, the winding third winding (Lc), Between the fourth node n47 between the fourth switching element S4 and the seventh switching element S7 and the neutral point nn of the motor 250 , the fourth winding Ld wound and the fifth switching element Between the fifth node n58 between ( S5 ) and the eighth switching element S8 and the neutral point nn of the motor 250 , the fifth winding Le and the sixth switching element S6 are wound A sixth winding Lf wound between the
  • the first winding La is an a-phase winding, and an a-phase voltage Va may be applied thereto
  • the second winding Lb is a b-phase winding, and a b-phase voltage Vb may be applied thereto
  • the third winding Lc is a c-phase winding, and a c-phase voltage Vc may be applied thereto
  • the fourth winding Ld is a d-phase winding, and a d-phase voltage Vd may be applied thereto.
  • the fifth winding Le is an e-phase winding, and an e-phase voltage Ve may be applied thereto
  • the sixth winding Lf is an f-phase winding and an f-phase voltage Vf may be applied thereto.
  • the motor driving apparatus 200 may further include an inverter control unit 430 for controlling the inverter 420 , and the inverter control unit 430 is configured to be connected to each of the phase windings La to Lf. , the inverter 420 may be controlled to apply the respective phase voltages Va to Vf.
  • the inverter controller 430 may output a switching control signal for controlling the nine switching elements S1 to S9 . Accordingly, it is possible to reduce the signal processing burden of the inverter control unit 430 .
  • FIG. 8 to 11C are diagrams referred to in the description of FIG. 6 or FIG. 7 .
  • FIG. 8 is a diagram illustrating an a-phase voltage waveform Va and a d-phase voltage waveform Vd applied to the motor 250 .
  • the a-phase voltage Va applied to the motor 250 is at a low level
  • the d-phase voltage Vd is at a low level
  • the a-phase voltage Va applied to the motor 250 is a
  • the phase voltage Va is a high level
  • the d-phase voltage Vd is a low level
  • the a-phase voltage Va applied to the motor 250 is a high level
  • the d-phase voltage Vd is high level
  • FIG. 9A is a diagram illustrating a switching operation of the inverter 420x of FIG. 6 corresponding to the Ar1 time point.
  • the first upper-arm switching element Sa of the inverter 420x is off, the first lower-arm switching element S'a is on, the fourth upper-arm switching element Sd is off, the second 4 The lower arm switching element S'd is turned on.
  • the a-phase voltage Va of the low level and the d-phase voltage Vd of the low level are applied to the motor 250 .
  • FIG. 9B is a diagram illustrating a switching operation of the inverter 420x of FIG. 6 corresponding to the Ar2 time point.
  • the first upper-arm switching element Sa of the inverter 420x is on, the first lower-arm switching element S'a is off, the fourth upper-arm switching element Sd is off, the second 4 The lower arm switching element S'd is turned on.
  • a high-level a-phase voltage Va and a low-level d-phase voltage Vd are applied to the motor 250 .
  • 9C is a diagram illustrating a switching operation of the inverter 420x of FIG. 6 corresponding to the Ar3 time point.
  • the first upper-arm switching element Sa of the inverter 420x is on, the first lower-arm switching element S'a is off, and the fourth upper-arm switching element Sd is on, the second 4 The lower arm switching element S'd is turned off.
  • a high-level a-phase voltage Va and a low-level d-phase voltage Vd are applied to the motor 250 .
  • 10A is a diagram illustrating a switching operation of the inverter 420 of FIG. 7 corresponding to the Ar1 time point.
  • the first switching element S1 of the first leg is turned off, the fourth switching element S4 is turned on, and the seventh switching element S7 is turned on.
  • the a-phase voltage Va of the low level and the d-phase voltage Vd of the low level are applied to the motor 250 .
  • FIG. 10B is a diagram illustrating a switching operation of the inverter 420 of FIG. 7 corresponding to the Ar2 time point.
  • the first switching element S1 of the first leg of the inverter 420 is on, the fourth switching element S4 is off, and the seventh switching element S7 is on.
  • a high-level a-phase voltage Va and a low-level d-phase voltage Vd are applied to the motor 250 .
  • FIG. 10C is a diagram illustrating a switching operation of the inverter 420 of FIG. 7 corresponding to the Ar3 time point.
  • the first switching element S1 of the first leg of the inverter 420 is on, the fourth switching element S4 is on, and the seventh switching element S7 is off.
  • a high-level a-phase voltage Va and a low-level d-phase voltage Vd are applied to the motor 250 .
  • 11A is a diagram illustrating a switching pattern of the inverter 420x of FIG. 6 .
  • 11B is a diagram illustrating a switching pattern of the inverter 420 of FIG. 7 .
  • the switching pattern of the inverter 420 of FIG. 7 is illustrated as 27 .
  • the inverter 420 of FIG. 7 arranges three switching elements on one leg and includes a total of three legs, so that one leg of the inverter 420x of FIG. Compared to disposing two switching elements and disposing a total of 6 legs, it is possible to reduce the size of the inverter 420 and the number of switching of the inverter 420 .
  • 11C is an example of an internal block diagram of the inverter control unit 430 according to an embodiment of the present invention.
  • the inverter control unit 430 outputs a first comparison signal and a second comparison signal, respectively, based on an input AC voltage Vacr, a DC offset, and a reference voltage waveform vref.
  • an exclusive or OR includes a logic operator 1022 for performing an operation, a first inverter 1024 for inverting the output signal from the logic operator 1022, and a second inverter 1026 for inverting the second comparison signal. can do.
  • the inverter control unit 43 an adder 1011 for adding the three-phase input AC voltage Vacr and the DC offset, and the three-phase input AC voltage Vacr to subtract the DC offset (DCoffset)
  • a subtractor 1012 may be further provided.
  • the first comparator 1014 compares the output of the adder 1011 with the reference voltage waveform vref, which is a sawtooth waveform, and outputs a first comparison signal a.
  • the second comparator 1016 compares the output of the subtractor 1012 with the reference voltage waveform vref, which is a sawtooth waveform, and outputs a second comparison signal d.
  • the logic operator 1022 receives the first comparison signal (a) and the second comparison signal (d), and when the first comparison signal (a) and the second comparison signal (d) are at the same level, a low level (eg, For example, 0) may be output, and if it is a different level, a high level (eg, 1) may be output.
  • a low level eg, For example, 0
  • a high level eg, 1
  • the first inverter 1024 may invert the output signal from the logical operator 1022 .
  • the second inverter 1026 may invert the second comparison signal d.
  • the first comparison signal (a) is output to the first switching element S1 or the second switching element S2 or the third switching element S3 in the inverter 420, and the first inverter (
  • the output signal from 1024 is output to the fourth switching element S4 or the fifth switching element S5 or the sixth switching element S6, and the output signal from the second inverter 1026 is the seventh It may be output to the switching element S7, the eighth switching element S8, or the ninth switching element S9.
  • the inverter control unit 430 according to the embodiment of the present invention, the six-phase voltage converter 1010 for converting the input voltage of three phases to the voltage of six phases, and outputting the 9-phase switching control signal based on the voltage of the six-phase A 9-phase switching signal output unit 1020 may be included. Accordingly, it is possible to reduce the signal processing burden of the inverter control unit 430 .
  • the six-phase voltage converter 1010, the first comparison signal (a) and the second comparison signal (d) based on the three-phase input voltage, the DC offset, and the reference voltage waveform (vref) It includes a first comparator 1014 and a second comparator 1016 respectively outputting, the 9-phase switching signal output unit 1020, the first comparison signal (a) from the first comparator 1014, the second A logic operator 1022 that performs an exclusive OR operation based on the second comparison signal from the comparator 1016 and a first inverter 1024 that inverts the output signal from the logic operator 1022 ) and a second inverter 1026 for inverting the second comparison signal d. Accordingly, it is possible to reduce the signal processing burden of the inverter control unit 430 .
  • the 9-phase switching signal output unit 1020 outputs the first comparison signal (a) to the first switching element (S1), the second switching element (S2), or the third switching element (S3),
  • the output signal from the first inverter 1024 is output to the fourth switching element S4, the fifth switching element S5, or the sixth switching element S6, and the output signal from the second inverter 1026 is It may output to the seventh switching element (S7), the eighth switching element (S8), or the ninth switching element (S9). Accordingly, it is possible to reduce the signal processing burden of the inverter control unit 430 .
  • the inverter controller 430 may control the inverter 420 based on the 27 pattern signals of FIG. 11B . Accordingly, it is possible to reduce the signal processing burden of the inverter control unit 430 .
  • the present invention is applicable to a motor driving device and a vehicle having the same, and particularly, to a motor driving device capable of reducing the size of an inverter and the number of switching of the inverter, and a vehicle having the same.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)

Abstract

La présente invention concerne un dispositif d'entraînement de moteur et un véhicule le comportant. Le dispositif d'entraînement de moteur selon un mode de réalisation de la présente invention comprend : un moteur ; et un onduleur destiné à délivrer une puissance en courant alternatif au moteur, le moteur comprenant un moteur à six phases, et l'onduleur comprenant trois branches reliées en parallèle l'une à l'autre, chaque branche comprenant trois éléments de commutation connectés en série. Par conséquent, la taille de l'onduleur et le nombre de fois où les commutateurs d'onduleur peuvent être réduits.
PCT/KR2020/011527 2020-08-28 2020-08-28 Dispositif d'entraînement de moteur et véhicule le comportant Ceased WO2022045400A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020237008688A KR20230052283A (ko) 2020-08-28 2020-08-28 모터 구동장치, 및 이를 구비하는 차량
PCT/KR2020/011527 WO2022045400A1 (fr) 2020-08-28 2020-08-28 Dispositif d'entraînement de moteur et véhicule le comportant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/011527 WO2022045400A1 (fr) 2020-08-28 2020-08-28 Dispositif d'entraînement de moteur et véhicule le comportant

Publications (1)

Publication Number Publication Date
WO2022045400A1 true WO2022045400A1 (fr) 2022-03-03

Family

ID=80355400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2020/011527 Ceased WO2022045400A1 (fr) 2020-08-28 2020-08-28 Dispositif d'entraînement de moteur et véhicule le comportant

Country Status (2)

Country Link
KR (1) KR20230052283A (fr)
WO (1) WO2022045400A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240151518A (ko) 2023-04-11 2024-10-18 현대자동차주식회사 6상 모터
KR20250046002A (ko) 2023-09-26 2025-04-02 현대자동차주식회사 6상 모터
KR20250062870A (ko) 2023-10-31 2025-05-08 현대자동차주식회사 모터 제어 방법
KR20250112995A (ko) 2024-01-18 2025-07-25 현대자동차주식회사 모터 제어 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012086095A1 (fr) * 2010-12-24 2012-06-28 Three Eye Co., Ltd. Appareil de commande de moteur pour la commande d'un moteur triphasé du type à vitesse variable
JP2015077003A (ja) * 2013-10-09 2015-04-20 株式会社安川電機 電流形インバータ装置
CN105939129A (zh) * 2016-07-27 2016-09-14 佛山科学技术学院 一种九开关变换器的交错控制方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012086095A1 (fr) * 2010-12-24 2012-06-28 Three Eye Co., Ltd. Appareil de commande de moteur pour la commande d'un moteur triphasé du type à vitesse variable
JP2015077003A (ja) * 2013-10-09 2015-04-20 株式会社安川電機 電流形インバータ装置
CN105939129A (zh) * 2016-07-27 2016-09-14 佛山科学技术学院 一种九开关变换器的交错控制方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DIAB MOHAMED S.; ELSEROUGI AHMED A.; ABDEL-KHALIK AYMAN S.; MASSOUD AHMED M.; AHMED SHEHAB: "A Nine-Switch-Converter-Based Integrated Motor Drive and Battery Charger System for EVs Using Symmetrical Six-Phase Machines", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ., USA, vol. 63, no. 9, 1 September 2016 (2016-09-01), USA , pages 5326 - 5335, XP011619193, ISSN: 0278-0046, DOI: 10.1109/TIE.2016.2555295 *
SALEM AHMED S.; HAMDY RAGI A.; ABDEL-KHALIK AYMAN S.; EL-ARABAWY IBRAHIM F.; HAMAD MOSTAFA S.: "Performance of nine-switch inverter-fed asymmetrical six-phase induction machine under machine and converter faults", 2016 EIGHTEENTH INTERNATIONAL MIDDLE EAST POWER SYSTEMS CONFERENCE (MEPCON), IEEE, 27 December 2016 (2016-12-27), pages 711 - 716, XP033055294, DOI: 10.1109/MEPCON.2016.7836971 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240151518A (ko) 2023-04-11 2024-10-18 현대자동차주식회사 6상 모터
KR20250046002A (ko) 2023-09-26 2025-04-02 현대자동차주식회사 6상 모터
KR20250062870A (ko) 2023-10-31 2025-05-08 현대자동차주식회사 모터 제어 방법
KR20250112995A (ko) 2024-01-18 2025-07-25 현대자동차주식회사 모터 제어 방법

Also Published As

Publication number Publication date
KR20230052283A (ko) 2023-04-19

Similar Documents

Publication Publication Date Title
WO2022045400A1 (fr) Dispositif d'entraînement de moteur et véhicule le comportant
JP5616409B2 (ja) 永久磁石の不可逆減磁を防止する永久磁石同期電動機の制御装置及びそのような制御装置を備える制御システム
WO2016111508A1 (fr) Appareil d'entraînement de moteur et son procédé de commande
CN103973200A (zh) 逆变器装置及电动机驱动系统
WO2017061817A1 (fr) Appareil d'entraînement de moteur et appareil ménager l'intégrant
WO2015122655A1 (fr) Système électrique et appareil de pilotage de moteur intégré au système électrique
WO2019009644A1 (fr) Appareil d'entraînement de moteur
WO2021015460A1 (fr) Système d'aide à la direction assistée et dispositif de commande électronique
WO2018199581A1 (fr) Dispositif de traitement de linge
WO2013165100A1 (fr) Moteur de type à rotor à double bobinage avec entrée d'alimentation électrique à courant alternatif ou à courant électrique constant et procédé de commande de celui-ci
WO2020105838A1 (fr) Dispositif de commande d'onduleur
WO2019059648A1 (fr) Appareil de commande de moteur
WO2023200124A1 (fr) Procédé et appareil d'entraînement d'une pluralité de moteurs présentant des différences de paramètres
WO2021107226A1 (fr) Condensateur à film, dispositif de conversion de puissance et véhicule le comprenant
EP3475476A1 (fr) Machine à laver
WO2012161547A2 (fr) Appareil de commande d'un courant de rotor dans un moteur à induction du type à rotor bobiné
WO2017204425A1 (fr) Équipement électrique à aimant permanent et à longueur de pôle magnétique non uniforme
WO2024117325A1 (fr) Dispositif de relais et appareil de charge de batterie le comprenant
WO2013073721A1 (fr) Moteur bldc et module de commande destinés à un véhicule électrique et procédé de commande associé
WO2019013491A1 (fr) Appareil d'excitation de moteur
WO2023243751A1 (fr) Dispositif d'entraînement de moteur et véhicule le comportant
WO2020256181A1 (fr) Dispositif de conversion de puissance, et véhicule comportant celui-ci
WO2021145666A1 (fr) Dispositif de conversion de courant et véhicule le comprenant
WO2013111968A1 (fr) Procédé de modulation d'impulsions en largeur à commande de courant sur un onduleur à source de tension en pont complet polyphasé
WO2025258712A1 (fr) Stator et moteur le comprenant

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20951632

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20237008688

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20951632

Country of ref document: EP

Kind code of ref document: A1