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WO2019033669A1 - Système redresseur de générateur à aimant permanent multiphase - Google Patents

Système redresseur de générateur à aimant permanent multiphase Download PDF

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Publication number
WO2019033669A1
WO2019033669A1 PCT/CN2017/117618 CN2017117618W WO2019033669A1 WO 2019033669 A1 WO2019033669 A1 WO 2019033669A1 CN 2017117618 W CN2017117618 W CN 2017117618W WO 2019033669 A1 WO2019033669 A1 WO 2019033669A1
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WIPO (PCT)
Prior art keywords
voltage
windings
permanent magnet
output end
current
Prior art date
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Ceased
Application number
PCT/CN2017/117618
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English (en)
Chinese (zh)
Inventor
康莉莉
姜东杰
孙开意
李宽欣
许永久
王鑫
陈瑞涵
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CRRC Tangshan Co Ltd
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CRRC Tangshan 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 CRRC Tangshan Co Ltd filed Critical CRRC Tangshan Co Ltd
Publication of WO2019033669A1 publication Critical patent/WO2019033669A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/066—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode particular circuits having a special characteristic

Definitions

  • the invention relates to automatic control technology, in particular to a multiphase permanent magnet generator rectification system.
  • the design of the generator rectification system in a rail vehicle is one of the core technologies of a rail vehicle.
  • the generator rectification system in the orbital vehicle adopts a three-phase permanent magnet synchronous generator, and the three-phase permanent magnet synchronous generator is connected with a three-phase rectifier bridge.
  • the invention provides a multiphase permanent magnet generator rectification system to overcome the prior art, when the generator winding in the generator rectification system fails or the rectifier on the rectifier bridge fails, the three-phase permanent magnet generator rectifies The system is unable to continue to supply power to the motor, causing the rail vehicle to stop operating.
  • the invention provides a multiphase permanent magnet generator rectification system, comprising: an N-phase permanent magnet generator and N/3 rectifiers, wherein N is greater than 3 and N is an integer multiple of 3; the N-phase permanent magnet generator
  • the N/3 group winding includes three windings, and the N/3 group windings are connected in one-to-one correspondence with the N/3 rectifiers, and each group of windings provides three-phase alternating current for the corresponding connected rectifiers;
  • the first rectifier of the N/3 rectifiers includes a first output end and a second output end, the potential of the first output end being greater than the potential of the second output end; the second rectifier of the N/3 rectifiers
  • the first interface and the second interface are included, the potential of the first interface is greater than the potential of the second interface, the first interface is connected to the first output, and the second interface is connected to the second output
  • the terminals are connected, and the number of the second rectifiers is N/3-1.
  • each of the N/3 rectifiers includes six diodes.
  • the above system further includes: a current sensor and a voltage sensor; the current sensor is connected between the N/3 rectifiers and the N-phase permanent magnet generator for detecting the N/3 group windings Current information, each set of windings includes three current sensors; the voltage sensor is connected between the N/3 rectifiers and the N-phase permanent magnet generator for detecting the voltage of the N/3 group windings Information, each set of windings includes 2 voltage sensors.
  • the system further includes: a display device; the display device is electrically connected to the current sensor, configured to receive current information detected by the current sensor, and display current information detected by the current sensor; The display device is electrically connected to the voltage sensor for receiving voltage information detected by the voltage sensor, and displaying voltage information detected by the voltage sensor.
  • the above system further includes: an alarm unit; the alarm unit is provided with a current threshold, the alarm unit is configured to acquire the current information, and when the current information is greater than the current threshold, the alarm unit starts to alarm;
  • the alarm unit is further provided with a voltage threshold, the alarm unit is further configured to acquire the voltage information, and when the voltage information is greater than the voltage threshold, the alarm unit starts to alarm.
  • the system further includes: a capacitor; the capacitor is connected between the first output end and the second output end, and is configured to stabilize between the first output end and the second output end DC voltage.
  • the system further includes: a pre-charging module; the pre-charging module is disposed at the The first output terminal is configured to prevent an overcurrent from being generated when the power is turned on, causing damage to the system.
  • the system further includes: an inverter unit; the inverter unit is disposed between the first output end and the second output end, and is configured to convert the DC voltage into an AC voltage, AC motor power supply.
  • the multiphase permanent magnet generator rectification system provides an N-phase permanent magnet generator and N/3 rectifiers, the N-phase permanent magnet generator comprises N/3 sets of windings, and each set of windings comprises 3 windings. Connecting the N/3 group windings to the N/3 rectifiers in a one-to-one correspondence, so that each group of windings provides three-phase alternating current for the corresponding connected rectifier, and the first rectifier of the N/3 rectifiers includes the first An output end and a second output end, the second rectifier of the N/3 rectifiers includes a first interface and a second interface, the first interface is connected to the first output end, and the second interface is connected to the second interface The output is connected so that when the rail vehicle is in operation, when there is a rectifier failure in the multiphase permanent magnet generator rectification system, the remaining rectifier can still convert the three-phase alternating current provided by the multiphase permanent magnet generator into a DC voltage.
  • the power supply by the multi-phase permanent magnet generator reduces the current value flowing through each winding, which reduces the capacity of the rectifier power device, and is very suitable for a large power load with a large current.
  • FIG. 1a is a circuit diagram of a first embodiment of a multiphase permanent magnet generator rectification system according to the present invention
  • FIG. 1b is a circuit diagram of a first embodiment of a nine-phase permanent magnet generator rectification system provided by the present invention
  • FIG. 2a is a circuit diagram of a second embodiment of a nine-phase permanent magnet generator rectifying system provided by the present invention.
  • Embodiment 2b is another circuit diagram of Embodiment 2 of a nine-phase permanent magnet generator rectifying system provided by the present invention.
  • FIG. 3 is a circuit diagram of a third embodiment of a nine-phase permanent magnet generator rectification system provided by the present invention.
  • 112 a second output; 12: a second rectifier; 121: a first interface;
  • the multiphase permanent magnet generator rectification system provided by the invention can be applied to various types of internal combustion rail vehicles, such as diesel locomotives and internal combustion vehicles.
  • the rail vehicle may be a rail-driven vehicle driven by a diesel engine or a rail-driven vehicle driven by a gasoline engine, which is not limited by the present invention.
  • the present invention is directed to solving the above prior art techniques problem.
  • FIG. 1a is a circuit diagram of a first embodiment of a multiphase permanent magnet generator rectification system according to the present invention
  • FIG. 1b is a circuit diagram of a first embodiment of a nine-phase permanent magnet generator rectification system according to the present invention
  • the multiphase permanent magnet generator rectification system provided by this embodiment includes: an N-phase permanent magnet generator 10 and N/3 rectifiers, wherein N is greater than 3 and N is an integer multiple of 3; the N-phase permanent magnet power generation
  • the machine 10 includes N/3 sets of windings, each set of windings includes 3 windings, and the N/3 sets of windings are connected in one-to-one correspondence with the N/3 rectifiers, and each set of windings provides three-phase alternating current for the corresponding connected rectifiers.
  • the first rectifier 11 of the N/3 rectifiers includes a first output end 111 and a second output end 112, the potential of the first output end 111 being greater than the potential of the second output end 112;
  • the second rectifier 12 of the /3 rectifiers includes a first interface 121 and a second interface 122, the potential of the first interface 121 being greater than the potential of the second interface 122, the first interface 121 and the first
  • the output terminal 111 is connected, the second interface 122 is connected to the second output terminal 112, and the number of the second rectifiers 12 is N/3-1.
  • the user can set the number of windings of the rectifier system of the generator according to the power of the load connected to the rectifier system of the generator.
  • the N windings can output N phases of alternating current, that is, the permanent magnet generator in the rectifier system of the generator can output N-phase alternating current, and the permanent magnet generator is It is called an N-phase permanent magnet generator 10.
  • the connection manner of the N windings in the generator may be Y connection, or may be triangular connection, and N is an integer multiple of 3.
  • the user selects to use a nine-phase permanent magnet generator based on the power of the load connected to the generator rectification system.
  • the nine-phase permanent magnet generator includes nine windings, and the nine windings are The connection method in the generator is selected as Y connection, and the 9 windings are divided into 3
  • each set of windings comprises three windings, wherein each set of windings can output three-phase alternating current, and the three sets of windings are connected in one-to-one correspondence with three rectifiers, and each set of windings provides three-phase alternating current for the rectifiers connected thereto.
  • the above rectifier may be any device capable of converting three-phase alternating current into direct current.
  • the rectifier may be composed of six diodes or six controllable switching devices.
  • the rectifiers in the rectifier system of the N-phase permanent magnet generator 10 in this embodiment can be divided into two types, namely, a first rectifier 11 and a second rectifier 12, wherein the number of the first rectifiers 11 is one, and the second The number of rectifiers 12 is N/3-1.
  • the first rectifier 11 includes a first output 111 and a second output 112
  • the second rectifier 12 includes a first interface 121 and a second interface 122, wherein the first interface 121 is connected to the first output 111, and the second interface 122 is
  • the second output terminal 112 is connected, and the first output end 111 and the second output end 112 are equivalent to the positive and negative poles of the power source.
  • the nine-phase permanent magnet generator rectification system includes three rectifiers, and any one of the rectifiers may be the first rectifier 11, and the remaining two rectifiers are
  • the second rectifier 12 connects one of the three sets of windings provided by the nine-phase permanent magnet generator to the first rectifier 11 and provides three-phase alternating current to the first rectifier 11, and the three-phase alternating current passes through the first rectifier After 11 is converted to a DC voltage and outputted from the first output terminal 111 and the second output terminal 112.
  • the other two of the three sets of windings are connected to the other two rectifiers, that is, to the second rectifier 12, to provide a three-phase alternating current to the second rectifier 12, which is also converted to a direct current after passing through the second rectifier 12.
  • the voltage is output from the first interface 121 and the second interface 122.
  • the potential of the first interface 121 is greater than the potential of the second interface 122, and the first interface 121 of the second rectifier 12 is connected to the first output 111 of the first rectifier 11.
  • the second interface 122 of the second rectifier 12 is connected to the second output terminal 112 of the first rectifier 11, and the DC voltage converted by the three rectifiers can be performed from the first output terminal 111 and the second output terminal 112. Output.
  • the remaining rectifiers can still convert the three-phase alternating current provided by the nine-phase permanent magnet generator into a direct current voltage, and from the first output end 111 And outputting from the second output terminal 112 to provide power for subsequent loads, or when one or both sets of windings in the nine-phase permanent magnet generator fail, the remaining windings can continue to operate to provide power output for subsequent loads while Powered by a nine-phase permanent magnet generator to reduce the current flowing through each winding, The capacity of the power device of the rectifier is reduced, which is very suitable for a large power load with a large current.
  • the multiphase permanent magnet generator rectification system provides an N-phase permanent magnet generator and N/3 rectifiers, the N-phase permanent magnet generator comprises N/3 sets of windings, and each set of windings comprises 3 windings. Connecting the N/3 group windings to the N/3 rectifiers in a one-to-one correspondence, so that each group of windings provides three-phase alternating current for the corresponding connected rectifier, and the first rectifier of the N/3 rectifiers includes the first An output end and a second output end, the second rectifier of the N/3 rectifiers includes a first interface and a second interface, the first interface is connected to the first output end, and the second interface is connected to the second interface The output is connected so that when the rail vehicle is in operation, when there is a rectifier failure in the multiphase permanent magnet generator rectification system, the remaining rectifier can still convert the three-phase alternating current provided by the multiphase permanent magnet generator into a DC voltage.
  • the power supply by the multi-phase permanent magnet generator reduces the current value flowing through each winding, which reduces the capacity of the rectifier power device, and is very suitable for a large power load with a large current.
  • the multiphase permanent magnet generator rectification system provided by the embodiment further includes: a current sensor 13 and a voltage sensor 14; the current sensor 13 is connected to the N/3 rectifiers Between the N-phase permanent magnet generator and the current information for detecting the N/3 group windings, each set of windings includes three current sensors 13; the voltage sensor 14 is connected to the N/3 Between the rectifier and the N-phase permanent magnet generator, for detecting voltage information in the group of the N/3 group windings, each group of windings includes two voltage sensors 14.
  • a current sensor 13 can be connected to each winding in the N/3 group winding to measure each The current information on the windings of the current sensor 13 is three, and the number of current sensors 13 in each group of windings is three, and the nine current sensors are respectively represented by TA1-TA9.
  • a voltage sensor 14 can also be connected between the two windings in the N/3 group winding to measure the voltage information between the two windings in the N/3 group winding, and the number of voltage sensors 14 in each group of windings is two. Six voltage sensors are represented by TV1-TV6, respectively.
  • FIG. 2b is another circuit diagram of Embodiment 2 of the nine-phase permanent magnet generator rectification system provided by the present invention, and FIG. 2b only shows a part of the nine-phase permanent magnet generator rectification system.
  • the multiphase permanent magnet generator rectification system provided in this embodiment also Including: a display device 15; as shown in FIG.
  • the display device 15 is electrically connected to the current sensor 13 for receiving current information detected by the current sensor 13 and detecting the current sensor 13 The current information is displayed; the display device 15 is further electrically connected to the voltage sensor 14, and is configured to receive voltage information detected by the voltage sensor 14 and display the voltage information detected by the voltage sensor 14.
  • the display device 15 may be a cathode ray tube display, a plasma display or a liquid crystal display.
  • the nine-phase permanent magnet generator rectification system includes nine current sensors 13, which are all in phase with the display device 15. Connecting, during the operation of the nine-phase permanent magnet generator rectification system, nine current sensors 13 detect the current information on the nine windings in real time, and send the detected results to the display device 15 in real time, the display device 15 After receiving the current information, it is displayed in a certain format.
  • the display device 15 can display the received current information in the format in Table 1:
  • R1 represents the first rectifier 11
  • TA1-TA3 represents three current sensors connected to R1
  • x, y and z corresponding to the current sensors TA1-TA3 respectively represent the specific values of TA1-TA3 currently received by the display device 15.
  • R2 represents the second rectifier 12
  • R21, R22 represent two rectifiers belonging to the second rectifier 12 type
  • TA4-TA6 represents three current sensors connected to R21, and x, y and z corresponding to the current sensors TA4-TA6 respectively Indicates the specific value of TA4-TA6 currently received by display device 15.
  • TA7-TA9 represents three current sensors connected to R22, and x, y and z corresponding to current sensors TA7-TA9 represent specific values of TA7-TA9 currently received by display device 15, respectively.
  • the six voltage sensors 14 of the nine-phase permanent magnet generator rectification system are also connected to the display device 15.
  • six voltage sensors 14 are in real time.
  • the voltage information between the two windings in each group of windings is detected, and the detected result is sent to the display device 15 in real time.
  • the display device 15 displays the voltage information in a certain format.
  • the display format can be Referring to the display format of the current information in Table 1, it will not be described here.
  • the display device 15 displays the current information and the voltage information
  • the user can observe the current information on each winding in the N/3 group winding and the two windings in the N/3 group winding in real time on the display device 15. Voltage information, and timely check the faulty device according to the abnormality of the observed information, and repair it in time.
  • the multiphase permanent magnet generator rectification system connects a current sensor on each winding of the N/3 group winding to measure current information on the winding of each current sensor, in the N/3 group winding
  • a voltage sensor is connected between the two windings to measure the voltage information between the two windings in the N/3 group winding, and the current sensor and voltage sensor are mounted
  • the phase connection is connected to enable the display device to display the current information and the voltage information detected by the current sensor and the voltage sensor, so that the user can timely check the faulty device according to the abnormality of the displayed information, and timely repair and improve the device.
  • the nine-phase permanent magnet generator rectification system provided by the embodiment further includes: an alarm unit 16; the alarm unit 16 is provided with a current threshold, and the alarm unit 16 is used for acquiring The current information, when the current information is greater than the current threshold, the alarm unit 16 starts to alarm; the alarm unit 16 is further provided with a voltage threshold, and the alarm unit 16 is further configured to acquire the voltage information. When the voltage information is greater than the voltage threshold, the alarm unit 16 starts to alarm.
  • the current value on each winding in the N/3 group winding is different, and the user can connect to the N/3 group winding according to the load connected to the multi-phase permanent magnet generator.
  • the current value on each winding is calculated and the calculated current value is set to the current threshold on the corresponding winding, for example, when the user uses a nine-phase permanent magnet generator rectification system to supply power to the connected load thereof, Determining that the current value flowing through the current sensor TA1 connected to the first rectifier R1 is m ampere, the current threshold on the winding where the current sensor TA1 is located is set to m, during the operation of the nine-phase permanent magnet motor rectification system, The current sensor TA1 detects the current information on the winding in which it is located in real time, and the current information is acquired by the alarm unit 16 in real time.
  • the alarm When the current information acquired by the alarm unit 16 is greater than m, the alarm is started, and the user can know the nine-phase power generation used.
  • the machine rectifier system is faulty, and the faulty device is inspected in time and repaired, which improves the safety of the rail vehicle during driving. .
  • the user can also determine the voltage value between the two windings in the N/3 group winding according to the output voltage of the multi-phase permanent magnet generator, and set the voltage value to the voltage threshold between the two windings.
  • the voltage sensor 14 detects in real time. Voltage information between the two windings in the N/3 group winding, and the current information is acquired by the alarm unit 16 in real time. When the voltage information acquired by the alarm unit 16 is greater than the above voltage threshold, the alarm is started, and the user can know the used nine.
  • the phase generator rectifier system fails, and the faulty device is inspected in time and repaired, which improves the safety of the rail vehicle during driving.
  • a capacitor may be connected between the first output end 111 and the second output end 112.
  • a precharge module may be disposed on the first output terminal 111.
  • an inverter unit may be disposed between the first output end 111 and the second output end 112 for DC between the first output end 111 and the second output end 112. The voltage is converted to alternating current.
  • the nine-phase permanent magnet generator rectification system sets an alarm unit and sets a current threshold and a voltage threshold in the alarm unit, so that the current information and voltage information acquired by the user in the alarm unit are smaller than the current threshold and the voltage threshold.
  • the multi-phase generator rectification system used is faulty, and the faulty device is timely checked and repaired, thereby improving the safety during the running of the rail vehicle.
  • the DC voltage between the first output terminal and the second output terminal is stabilized by connecting a capacitor between the first output terminal and the second output terminal.
  • the pre-charging module By setting the pre-charging module on the first output terminal, the degree of damage to the N/3 rectifiers caused by short-circuiting at both ends of the power-on instant capacitor can be reduced.
  • the inverter unit By providing an inverter unit between the first output end and the second output end, the DC voltage between the first output end and the second output end can be converted into AC power to supply power to the AC motor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

L'invention concerne un système redresseur de générateur à aimant permanent multiphase. Le système comprend : un générateur d'aimant permanent à N phases (10) et N/3 redresseurs (11, 12), N étant supérieur à 3 et N étant un multiple entier de 3 ; le générateur d'aimant permanent à N phases (10) comprend N/3 enroulements, et les N/3 enroulements fournissent un courant alternatif triphasé pour les redresseurs connectés de manière correspondante (11, 12) ; le premier redresseur (11) dans les N/3 redresseurs (11, 12) comprend une première extrémité de sortie (111) et une seconde extrémité de sortie (112) ; le second redresseur (12) dans les N/3 redresseurs (11, 12) comprend une première interface (121) et une seconde interface (122), la première interface (121) est connectée à la première extrémité de sortie (111), et la seconde interface (122) est connectée à la seconde extrémité de sortie (112) ; il existe des (N/3-1) seconds redresseurs (12). Selon le système, pendant le processus de fonctionnement d'un véhicule ferroviaire, lorsqu'un redresseur ou une pluralité d'enroulements tombe en panne, les redresseurs restants ou les enroulements restants peuvent toujours fonctionner pour délivrer de l'énergie électrique à la charge ultérieure, de façon à entraîner le véhicule ferroviaire en marche continue.
PCT/CN2017/117618 2017-08-14 2017-12-21 Système redresseur de générateur à aimant permanent multiphase Ceased WO2019033669A1 (fr)

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CN201710693377.3 2017-08-14
CN201710693377.3A CN107317488A (zh) 2017-08-14 2017-08-14 多相永磁发电机整流系统

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CN107317488A (zh) * 2017-08-14 2017-11-03 中车唐山机车车辆有限公司 多相永磁发电机整流系统

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