WO2016031064A1 - 鉄道システム - Google Patents
鉄道システム Download PDFInfo
- Publication number
- WO2016031064A1 WO2016031064A1 PCT/JP2014/072786 JP2014072786W WO2016031064A1 WO 2016031064 A1 WO2016031064 A1 WO 2016031064A1 JP 2014072786 W JP2014072786 W JP 2014072786W WO 2016031064 A1 WO2016031064 A1 WO 2016031064A1
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- WIPO (PCT)
- Prior art keywords
- storage device
- power storage
- vehicle
- set value
- power
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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/15—Preventing overcharging
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- 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
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- 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
- B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
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- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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- 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
- B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
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- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/14—Dynamic electric regenerative braking for vehicles propelled by AC motors
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- 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
- B60L9/00—Electric propulsion with power supply external to the vehicle
- B60L9/16—Electric propulsion with power supply external to the vehicle using AC induction motors
- B60L9/18—Electric propulsion with power supply external to the vehicle using AC induction motors fed from DC supply lines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/02—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power with means for maintaining voltage within a predetermined range
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/06—Arrangements for consuming regenerative power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
- B61C3/02—Electric locomotives or railcars with electric accumulators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
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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
- H02M7/42—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
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- 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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- 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
- B60L2210/10—DC to DC converters
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- 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
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/62—Vehicle position
- B60L2240/625—Vehicle position by GSM
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- 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
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- 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
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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- 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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T90/12—Electric charging stations
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- 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
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- Y02T90/14—Plug-in electric vehicles
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- 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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
Definitions
- Embodiments according to the present invention relate to a railway system.
- the hybrid vehicle includes a power storage device, and can travel using both energy from the overhead line and energy from the power storage device.
- a power storage device of a hybrid vehicle is discharged for assist during power running, or absorbs and recharges energy during regeneration.
- the power storage device of a hybrid vehicle normally discharges to assist the host vehicle while traveling, or charges the regenerative energy of the host vehicle. It is also conceivable that the power storage device of the hybrid vehicle is discharged for assisting another vehicle via an overhead wire or recovers regenerative energy of the other vehicle.
- the railway system is a railway system including a first vehicle and a second vehicle that are electrically connected to a certain power line.
- the first vehicle includes a drive unit, an inverter that obtains power from the power line and drives the drive unit, a power storage device that supplies power to the power line or stores power from the power line, and a control unit.
- the control unit determines whether the power storage device can be charged or discharged based on a detected value of the amount of charge stored in the power storage device, the distance between the first vehicle and the second vehicle, or the voltage value of the power line. To control.
- the detected value when switching the charging or discharging by the power storage device from the permitted state to the prohibited state is set as the first set value, and the detected value when the charging or discharging by the power storage device is switched from the prohibited state to the permitted state is the second set value. Then, the first set value is different from the second set value.
- FIG. 1 is a diagram illustrating a schematic configuration of a railway system 10 according to the present embodiment.
- the graph which shows the possibility of charging / discharging of the electrical storage apparatus 5 by 1st Embodiment.
- the graph which shows the possibility of charging / discharging of the electrical storage apparatus 5 by 2nd Embodiment.
- the graph which shows the possibility of charging / discharging of the electrical storage apparatus 5 by 3rd Embodiment.
- the flowchart which shows switching of the charging / discharging state of the electrical storage apparatus 5 by 1st Embodiment.
- the flowchart which shows switching of the charging / discharging state of the electrical storage apparatus 5 by 1st Embodiment.
- the flowchart which shows switching of the charging / discharging state of the electrical storage apparatus 5 by 2nd Embodiment.
- the flowchart which shows switching of the charging / discharging state of the electrical storage apparatus 5 by 3rd Embodiment.
- FIG. 1 is a diagram showing a schematic configuration of a railway system 10 according to the present embodiment.
- the railway system 10 includes a first vehicle 1A and a second vehicle 1B.
- the first and second vehicles 1 ⁇ / b> A and 1 ⁇ / b> B are connected in common (in parallel) between the power line 11 and the power line 12.
- the power line 11 is, for example, a high voltage overhead line and is in contact with the pantographs 2A and 2B of the first and second vehicles 1A and 1B, respectively.
- the power line 12 is, for example, a ground voltage line, and is in contact with the wheels 8A and 8B of the first and second vehicles 1A and 1B.
- the first and second vehicles 1A and 1B receive power supply from the power lines 11 and 12.
- the first vehicle 1A includes a pantograph 2A, an inverter 3A, a motor 4A, a power storage device 5, a wheel 8A, a controller 9A, a communication unit 13A, a capacitor 14A, a filter reactor 15A, and a charge amount detection unit. 16, a voltage detection unit 17, and a rotary encoder 18.
- the pantograph 2A is in contact with the power line 11 and the wheel 8A is in contact with the power line 12. Thereby, electric power is supplied to the first vehicle 1A.
- the inverter 3A converts DC power obtained from the power lines 11 and 12 into AC power and supplies it to the motor 4A.
- the motor 4A as a drive unit is driven by AC power from the inverter 3A.
- the motor 4A rotates the wheel 8A.
- the power storage device 5 includes a power storage element 6 and a DC-DC converter 7, and is connected to the DC power input side of the inverter 3A.
- the DC-DC converter 7 stores the DC power from the power lines 11, 12 or the inverter 3 ⁇ / b> A in the storage element 6 when the storage element 6 is charged.
- the DC-DC converter 7 supplies the electric power of the electric storage element 6 to the power lines 11 and 12 or the inverter 3A when the electric storage element 6 is discharged.
- the electrical storage element 6 is not specifically limited, For example, a secondary battery or a large capacity capacitor may be used.
- the power storage device 5 supplies power to the power lines 11 and 12 or the inverter 3A, or accumulates power from the power lines 11 and 12 or the inverter 3A.
- the controller 9A controls each component of the first vehicle 1A.
- control unit 9A controls the operation of inverter 3A and the operation of power storage device 5.
- the controller 9 ⁇ / b> A includes a charge accumulation amount (SOC (StateCOf Charge)) of the power storage device 5, a distance between the first vehicle 1 ⁇ / b> A and the second vehicle 1 ⁇ / b> B, or the power line 11, Based on the detected value of any of the 12 voltage values, whether or not the power storage device 5 can be charged or discharged is controlled.
- SOC StateCOf Charge
- the communication unit 13A is communicably connected to the communication unit 13B of the second vehicle 1B and / or is communicably connected to the central management unit 20 via the base stations 21 to 23 installed on the ground. ing.
- the communication unit 13A transmits information on the first vehicle 1A to the central management unit 20 and / or the second vehicle 1B, or transmits information on the second vehicle 1B to the central management unit 20 and / or the second vehicle. 1B can be received.
- the first vehicle 1A receives the position information of the second vehicle 1B, and compares the position information of the own vehicle 1A with the position information of the second vehicle 1B, thereby comparing the own vehicle 1A and the second vehicle 1B. (L shown in FIG. 3) can be calculated.
- the first vehicle 1A may obtain the distance between the host vehicle 1A and the second vehicle 1B using GPS (Global Positioning System).
- the capacitor 14A and the filter reactor 15A function as a low-pass filter for stabilizing the DC power input to the inverter 3A.
- the charge amount detection unit 16 detects the charge amount (SOC) accumulated in the electricity storage element 6.
- the detection of the amount of charge (SOC) may be calculated from the integration of the charging current or discharging current. Or you may calculate from the open circuit voltage of the electrical storage element 6.
- FIG. The controller 9A may execute integration of the charging current or discharging current.
- the voltage detector 17 detects the voltage applied to the capacitor 14A.
- the voltage applied to the capacitor 14 ⁇ / b> A depends on the voltage applied between the voltage line 11 and the voltage line 12. Therefore, the voltage detector 17 or the controller 9A can recognize the voltage applied between the voltage line 11 and the voltage line 12 by detecting the voltage applied to the capacitor 14A.
- the rotary encoder 18A detects the travel distance of the first vehicle 1A by detecting the rotation of the wheel 8A. As a result, the first vehicle 1A can recognize the position information of the host vehicle, and transmits the position information of the first vehicle 1A to the second vehicle 1B via the central management unit 20 or directly. can do.
- the first vehicle 1 ⁇ / b> A is a so-called hybrid vehicle, and can travel with power supplied from the power lines 11 and 12, or can travel with the assistance of power from the power storage device 5. . Further, the first vehicle 1 ⁇ / b> A can store power from the power lines 11 and 12 in the power storage device 5, or can store regenerative power during braking in the power storage device 5.
- the second vehicle 1B is a normal vehicle that does not have the power storage device 5, and includes a pantograph 2B, an inverter 3B, a motor 4B, wheels 8B, a controller 9B, a communication unit 13B, a capacitor 14B, And a filter reactor 15B.
- a pantograph 2B, the inverter 3B, the motor 4B, the wheel 8B, the controller 9B, the communication unit 13B, the capacitor 14B, and the filter reactor 15B are respectively the pantograph 2A, the inverter 3A, the motor 4A, and the wheel 8A of the first vehicle 1A.
- the configurations and functions of the controller 9A, the communication unit 13A, the capacitor 14A, and the filter reactor 15A may be the same. However, since the second vehicle is a normal vehicle that does not have the power storage device 5, the controller 9B does not need to control the power storage device.
- the first vehicle 1A may be traveling or in a stopped (standby) state.
- the second vehicle 1B is traveling and may be powering or regenerating.
- FIG. 2 is a graph showing whether the power storage device 5 according to the first embodiment can be charged or discharged.
- the controller 9 ⁇ / b> A controls whether or not the power storage device 5 can be charged or discharged based on a detection value SOC (hereinafter also simply referred to as SOC) of the charge accumulation amount of the power storage device 5.
- SOC detection value
- the vertical axis indicates whether charge / discharge is possible.
- the horizontal axis indicates the SOC of the power storage device 5.
- Controller 9A permits discharging from power storage device 5 and prohibits charging to power storage device 5 when the SOC of power storage device 5 is greater than first set value SOC11.
- SOC fully charged state
- power storage device 5 can discharge power to power lines 11 and 12, but power line 11 , 12 cannot be charged. That is, when the amount of charge stored in the power storage device 5 is close to full charge, the controller 9A prohibits charging of the power storage device 5 and permits discharge from the power storage device 5.
- the power supplied from the power storage device 5 of the first vehicle 1A to the power lines 11 and 12 is supplied to the second vehicle 1B via the power lines 11 and 12.
- the 2nd vehicle 1B can drive
- Controller 9A permits charging of power storage device 5 and discharging from power storage device 5 when SOC of power storage device 5 is smaller than second set value SOC12 and greater than third set value SOC22.
- the second set value SOC12 is smaller than the first set value SOC11.
- the controller 9A permits both discharging from the power storage device 5 and charging to the power storage device 5. This takes into account that even if the power storage device 5 is appropriately charged and discharged, it is difficult to be in an overcharged state or an overdischarged state.
- the power storage device 5 of the first vehicle 1A can collect regenerative power through the power lines 11 and 12 during braking of the second vehicle 1B. Thereby, it can utilize for charge of the electrical storage apparatus 5 of the 1st vehicle 1A, without wasting the regenerated electric power from the 2nd vehicle 1B. That is, the second vehicle 1B is not a hybrid vehicle, but can recharge the regenerative power from the second vehicle 1B to the power storage device 5 of the first vehicle 1A. Furthermore, the power supplied from the power storage device 5 of the first vehicle 1A to the power lines 11 and 12 is supplied to the second vehicle 1B via the power lines 11 and 12. Thereby, the 2nd vehicle 1B can drive
- controller 9A permits charging of power storage device 5 and prohibits discharging from power storage device 5 when the SOC of power storage device 5 is smaller than fourth set value SOC21.
- the fourth set value SOC21 is smaller than the third set value SOC22.
- the controller 9A prohibits the discharge from the power storage device 5 and permits the power storage device 5 to be charged. Thereby, the electric power from the power lines 11 and 12 can be recovered (absorbed) while suppressing the power storage device 5 from being overdischarged. By suppressing the power storage device 5 from being overdischarged, it is possible to suppress the first vehicle 1A from being unable to start up, and to prolong the life of the power storage element 6.
- the power storage device 5 of the first vehicle 1A can collect regenerative power through the power lines 11 and 12 during braking of the second vehicle 1B. Thereby, it can utilize for charge of the electrical storage apparatus 5 of the 1st vehicle 1A, without wasting the regenerated electric power from the 2nd vehicle 1B. That is, the second vehicle 1B is not a hybrid vehicle, but can recharge the regenerative power from the second vehicle 1B to the power storage device 5 of the first vehicle 1A.
- controller 9A When SOC12 ⁇ SOC ⁇ SOC11 or SOC21 ⁇ SOC ⁇ SOC22, controller 9A The charging / discharging state of the power storage device 5 is maintained without switching. That is, when the SOC of the power storage device 5 is between the second set value SOC12 and the first set value SOC11, the controller 9A has a history of a state where the power storage device 5 can be charged or discharged or a state where only the discharge is possible. To maintain.
- controller 9A has a history of a state where charge / discharge of power storage device 5 is possible or a state where only charge is possible. To maintain.
- Switching charge / discharge state 5 and 6 are flowcharts showing switching of the charge / discharge state of the power storage device 5 according to the first embodiment. With reference to FIGS. 2, 5, and 6, switching of the charge / discharge state of power storage device 5 will be described.
- controller 9A permits charging power storage device 5 and discharges power storage device 5. It is prohibited (S10). Thereafter, even if the SOC of power storage device 5 increases and exceeds fourth set value SOC21, controller 9A permits charging power storage device 5 and keeps discharging from power storage device 5 prohibited. (NO in S20).
- controller 9A When the SOC of power storage device 5 further increases and exceeds third set value SOC22 (YES in S20), controller 9A performs both charging and discharging of power storage device 5 as shown in FIG. Allow (S30).
- controller 9A maintains a state in which both charging and discharging of power storage device 5 are permitted. Maintain (NO in S40).
- Step S50 is the same state as step S10. Therefore, after that, the controller 9 ⁇ / b> A continues to control the power storage device 5.
- controller 9A charges power storage device 5 and stores the power storage device. Both discharges from 5 are permitted (S11). Thereafter, even if the SOC of power storage device 5 rises and exceeds second set value SOC12, controller 9A maintains a state where both charging and discharging of power storage device 5 are permitted (NO in S21).
- controller 9A When the SOC of power storage device 5 further increases and exceeds first set value SOC11 (YES in S21), controller 9A permits discharge from power storage device 5, as shown in FIG. Charging the power storage device 5 is prohibited (S31).
- controller 9A permits discharge from power storage device 5 and transfers to power storage device 5.
- the state in which charging is prohibited is maintained (NO in S41).
- controller 9A performs both charging and discharging of power storage device 5 as shown in FIG. Allow (S51).
- Step S51 is the same state as step S11. Therefore, after that, the controller 9 ⁇ / b> A continues to control the power storage device 5.
- the first set value SOC11 and the second set value SOC12, the third set value SOC22 and the fourth set value SOC21 are different from each other, and the charge / discharge state of the power storage device 5 is determined.
- SOC have a hysteresis. Thereby, when the SOC is between the first set value SOC11 and the second set value SOC12, it is possible to prevent the charge / discharge availability state of the power storage device 5 from becoming unstable.
- the SOC is between the third set value SOC22 and the fourth set value SOC21, it is possible to prevent the charge / discharge availability state of the power storage device 5 from becoming unstable.
- the charge / discharge of the power storage device 5 For example, if the first set value SOC11 and the second set value SOC12 are set to the same value and the SOC of the power storage device 5 rises or falls in the vicinity of the SOC11 and the SOC12, the charge / discharge of the power storage device 5 The availability status switches frequently. For this reason, the charge / discharge state of the power storage device 5 becomes very unstable.
- the third set value SOC33 and the fourth set value SOC21 are set to the same value, if the SOC of the power storage device 5 rises or falls in the vicinity of the SOC22 and the SOC21, the charge / discharge of the power storage device 5 is performed. The availability status switches frequently. For this reason, the charge / discharge state of the power storage device 5 becomes very unstable.
- the relationship between the chargeable / dischargeable state of the power storage device 5 and the SOC has hysteresis, so that the SOC of the power storage device 5 is equal to the second set value SOC12 and the first set value SOC12.
- the controller 9A maintains a history of whether the power storage device 5 can be charged or discharged. Thereby, the charging / discharging availability state of the power storage device 5 is stabilized without frequently switching.
- FIG. 3 is a graph showing whether or not the power storage device 5 according to the second embodiment can be charged / discharged.
- the controller 9A charges the power storage device 5 based on a detection value L (hereinafter also simply referred to as a distance L) of the distance between the first vehicle 1A and the second vehicle 1B. Alternatively, it controls whether discharge is possible.
- the vertical axis indicates whether charge / discharge is possible.
- the horizontal axis indicates the distance L.
- Controller 9A prohibits charging and discharging by power storage device 5 when distance L is greater than first set value L1.
- first vehicle 1A supplies power to the second vehicle 1B or recovers power from the second vehicle 1B
- power is transferred between the first vehicle 1A and the second vehicle 1B.
- the first vehicle 1A and the second vehicle 1B may travel independently or stand by.
- the first set value L1 may be determined in consideration of various conditions such as the resistance and voltage of the power lines 11 and 12.
- controller 9A permits charging and discharging by power storage device 5 when distance L is smaller than second set value L2.
- the second set value L2 is smaller than the first set value L1.
- controller 9A permits charging and discharging by power storage device 5 when distance L is smaller than second set value L2.
- the power storage device 5 of the first vehicle 1A can supply power to the second vehicle 1B via the power lines 11 and 12.
- the 2nd vehicle 1B can drive
- the power storage device 5 of the first vehicle 1 ⁇ / b> A can recover the regenerative power of the second vehicle 1 ⁇ / b> B via the power lines 11 and 12.
- the regenerative power from the second vehicle 1B can be used for charging the power storage device 5 of the first vehicle 1A without wasting it. That is, the second vehicle 1B is not a hybrid vehicle, but can receive assistance from the power storage device 5 of the first vehicle 1A or can charge the power storage device 5 with regenerative power.
- the second set value L2 may be determined in consideration of various conditions such as the resistance and voltage of the power lines 11 and 12.
- the controller 9A maintains the state of charge / discharge of the power storage device 5 without switching. That is, when the distance L is between the second set value L2 and the first set value L1, the controller 9A maintains a history of whether the power storage device 5 can be charged or discharged.
- FIG. 7 is a flowchart showing switching of the charge / discharge state of the power storage device 5 according to the second embodiment. With reference to FIG. 3 and FIG. 7, switching of the charge / discharge state of the power storage device 5 will be described.
- the controller 9A permits charging and discharging from the power storage device 5 (S12). In this case, even if the first vehicle 1A and the second vehicle 1B are separated from each other and the distance L exceeds the second set value L2, the controller 9A does not switch whether the power storage device 5 can be charged or discharged. Then, charging to power storage device 5 and discharging from power storage device 5 remain permitted (NO in S22).
- the controller 9A switches the charging / discharging state of the power storage device 5 as shown in FIG. That is, the controller 9A prohibits charging to the power storage device 5 and discharging from the power storage device 5 (S32).
- the controller 9A prohibits charging of the power storage device 5 and discharging from the power storage device 5. In this case, even if the first vehicle 1A and the second vehicle 1B approach each other and the distance L decreases and falls below the first set value L1, the controller 9A determines whether the power storage device 5 can be charged or discharged. Without switching, charging to the power storage device 5 and discharging from the power storage device 5 remain prohibited (NO in S42).
- the controller 9A switches the charging / discharging state of the power storage device 5 as shown in FIG. That is, the controller 9A permits charging and discharging from the power storage device 5 (S52).
- Step S52 is the same state as step S12. Therefore, after that, the controller 9 ⁇ / b> A continues to control the power storage device 5.
- the first set value L1 and the second set value L2 are different from each other, and the relationship between the charge / discharge availability state of the power storage device 5 and the distance L has hysteresis. Thereby, when the distance L is between the first set value L1 and the second set value L2, it is possible to prevent the charge / discharge availability state of the power storage device 5 from becoming unstable.
- the charge / discharge state of the power storage device 5 is determined. Switch frequently. For this reason, the charge / discharge state of the power storage device 5 becomes very unstable.
- the relationship between the chargeable / dischargeable state of the power storage device 5 and the distance L has hysteresis, so that the distance L becomes the second set value L2 and the first set value.
- the controller 9A maintains a history of whether or not the power storage device 5 can be charged or discharged. Thereby, the charging / discharging availability state of the power storage device 5 is stabilized without frequently switching.
- the controller 9A when the distance L between the first vehicle 1A and the second vehicle 1B is short, the controller 9A permits charging or discharging of the power storage device 5 and the first vehicle. When distance L between 1A and second vehicle 1B is long, controller 9A prohibits charging or discharging of power storage device 5. Thereby, 1 A of 1st vehicles can supply the electric power of the electrical storage apparatus 5 to the 2nd vehicle 1B efficiently, and collect
- FIG. 4 is a graph showing whether or not the power storage device 5 according to the third embodiment can be charged / discharged.
- the controller 9A controls whether or not the power storage device 5 can be charged or discharged based on a detected value E (hereinafter also simply referred to as a voltage value E) of the voltage value of the power line 11 (or 12). To do.
- the vertical axis indicates whether charge / discharge is possible.
- the horizontal axis represents the voltage value E.
- the voltage value E may be referred to as a detected value of the voltage difference between the power lines 11 and 12.
- controller 9A permits charging power storage device 5 and prohibits discharging from power storage device 5.
- a high voltage value E means that the second vehicle 1B regenerates electric power in the vicinity of the first vehicle 1A. That is, the controller 9A indicates that the voltage E is higher than the first set value E1, the distance between the first vehicle 1A and the second vehicle 1B is short, and the second vehicle 1B regenerates power. Can be determined. Therefore, in this case, the controller 9A permits charging by the power storage device 5 and prohibits discharging.
- the regenerative power from the second vehicle 1B can be used for charging the power storage device 5 of the first vehicle 1A without wasting it. That is, the second vehicle 1B is not a hybrid vehicle, but can recharge the regenerative power to the power storage device 5 of the first vehicle 1A. Moreover, it can suppress that the voltage of the power line 11 becomes high too much.
- the first set value E1 may be determined in consideration of various conditions such as the resistance and voltage of the power lines 11 and 12.
- controller 9A permits discharging from power storage device 5 and prohibits charging to power storage device 5 when voltage value E is smaller than second set value E2.
- the second set value E2 is smaller than the first set value E1.
- a low voltage value E means that the second vehicle 1B is running in the vicinity of the first vehicle 1A and is powering. That is, the controller 9A indicates that the distance between the first vehicle 1A and the second vehicle 1B is close because the voltage value E is lower than the second set value E2, and that the second vehicle 1B is in power running. Can be determined. Therefore, in this case, the controller 9A permits discharging by the power storage device 5 and prohibits charging.
- the second vehicle 1B can travel by receiving power supply from the power storage device 5 of the first vehicle 1A. That is, the second vehicle 1B is not a hybrid vehicle, but can travel with the assistance of the power storage device 5 of the first vehicle 1A. Moreover, it can suppress that the voltage of the power line 11 becomes low too much.
- the second set value E2 may be determined in consideration of various conditions such as the resistance and voltage of the power lines 11 and 12.
- controller 9A When voltage value E is greater than or equal to second set value E2 and less than or equal to first set value E1, controller 9A maintains the state of charge / discharge of power storage device 5 without switching. That is, when the voltage value E is between the second set value E2 and the first set value E1, the controller 9A maintains a history of whether the power storage device 5 can be charged or discharged.
- FIG. 8 is a flowchart showing switching of the charge / discharge state of the power storage device 5 according to the third embodiment. With reference to FIG. 4 and FIG. 8, switching of the charge / discharge state of power storage device 5 will be described.
- the controller 9A permits discharge from the power storage device 5 and prohibits charging of the power storage device 5 (S13). In this case, even if the voltage value E rises and exceeds the second set value E2, the controller 9A does not switch whether the power storage device 5 can be charged or discharged, permits discharge from the power storage device 5, and Then, charging to the power storage device 5 is prohibited (NO in S23).
- controller 9A switches between charging / discharging states of power storage device 5 as shown in FIG. . That is, the controller 9A permits charging of the power storage device 5 and prohibits discharging from the power storage device 5 (S33).
- the controller 9A permits charging of the power storage device 5 and prohibits discharging from the power storage device 5. In this case, even if the voltage value E decreases and falls below the first set value E1, the controller 9A does not switch the charging / discharging state of the power storage device 5, permits charging of the power storage device 5, and Then, the discharge from the power storage device 5 remains prohibited (NO in S43).
- controller 9A switches the state of charge / discharge of power storage device 5 as shown in FIG. . That is, the controller 9A permits discharging from the power storage device 5 and prohibits charging of the power storage device 5 (S53). Step S53 is the same state as step S13. Therefore, after that, the controller 9 ⁇ / b> A continues to control the power storage device 5.
- the first set value E1 and the second set value E2 are different from each other, and the relationship between the charge / discharge availability state of the power storage device 5 and the voltage value E has hysteresis. Thereby, when the voltage value E is between the first set value E1 and the second set value E2, it is possible to prevent the charge / discharge availability state of the power storage device 5 from becoming unstable.
- the charge / discharge state of the power storage device 5 is determined. Switch frequently. For this reason, the charge / discharge state of the power storage device 5 becomes very unstable.
- the relationship between the chargeable / dischargeable state of the power storage device 5 and the voltage E has hysteresis, so that the voltage E has the second set value E2 and the first set value.
- the controller 9A maintains a history of whether or not the power storage device 5 can be charged or discharged. Thereby, the charging / discharging availability state of the power storage device 5 is stabilized without frequently switching.
- the controller 9A when the distance between the first vehicle 1A and the second vehicle 1B is short, the controller 9A permits charging or discharging of the power storage device 5 and the first vehicle 1A. When the distance between the vehicle and the second vehicle 1B is long, the controller 9A prohibits charging and discharging of the power storage device 5.
- the third embodiment prevents the voltage difference between the power lines 11 and 12 from becoming excessively large or excessively small. Thereby, the voltage difference of the power lines 11 and 12 is stabilized.
- At least two of the first to third embodiments may be combined.
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Abstract
Description
図2は、第1の実施形態による蓄電装置5の充放電の可否を示すグラフである。本実施形態では、コントローラ9Aは、蓄電装置5の電荷蓄積量の検出値SOC(以下、単にSOCともいう)に基づいて、蓄電装置5の充電または放電の可否を制御する。縦軸は、充放電の可否を示す。横軸は、蓄電装置5のSOCを示す。
コントローラ9Aは、蓄電装置5のSOCが第1の設定値SOC11より大きい場合に、蓄電装置5からの放電を許可しかつ蓄電装置5への充電を禁止する。例えば、第1の設定値SOC1は、蓄電装置5の満充電状態(SOC=100%)の80%に設定されているものとする。この場合、蓄電装置5の電荷蓄積量が満充電状態の80%を超えると(SOCがSOC11を超えると)、蓄電装置5は、電力線11、12へ電力を放電することができるが、電力線11、12からの電力を充電することはできない。即ち、蓄電装置5の電荷蓄積量が満充電に近いときには、コントローラ9Aは、蓄電装置5への充電を禁止し、蓄電装置5からの放電を許可する。これにより、蓄電装置5が過充電状態になることを抑制しつつ、電力線11、12へ電力を供給することができる。蓄電装置5が過充電状態になることを抑制することによって、蓄電装置5の健全性を維持し、尚且つ、蓄電素子6の寿命を長期化することができる。
コントローラ9Aは、蓄電装置5のSOCが第2の設定値SOC12より小さく且つ第3の設定値SOC22より大きい場合に、蓄電装置5への充電及び蓄電装置5からの放電を許可する。尚、第2の設定値SOC12は、第1の設定値SOC11よりも小さい。例えば、第2の設定値SOC12および第3の設定値SOC22は、それぞれ蓄電装置5の満充電状態(SOC=100%)の70%および30%に設定されているものとする。つまり、蓄電装置5の電荷蓄積量が満充電状態の30%より大きく、且つ満充電状態の70%に満たない場合、蓄電装置5は、電力線11、12からの電力の充電および電力線11、12への電力の放電の可能とする。即ち、蓄電装置5の電荷蓄積量が充放電の両方に適した状態にあるときには、コントローラ9Aは、蓄電装置5からの放電と蓄電装置5への充電を共に許可する。これは、蓄電装置5への充放電を適宜行っても、過充電状態や過放電状態になり難い状態にあることを考慮したものである。
逆に、コントローラ9Aは、蓄電装置5のSOCが第4の設定値SOC21より小さい場合に、蓄電装置5への充電を許可しかつ蓄電装置5からの放電を禁止する。尚、第4の設定値SOC21は、第3の設定値SOC22よりも小さい。例えば、第4の設定値SOC21は、蓄電装置5の満充電状態(SOC=100%)の20%に設定されているものとする。この場合、蓄電装置5の電荷蓄積量が満充電状態の20%を下回ると(SOCがSOC21を下回ると)、蓄電装置5は、電力線11、12からの電力を充電することができるが、電力線11、12へ電力を放電することはできない。即ち、蓄電装置5の電荷蓄積量が少ないときには、コントローラ9Aは、蓄電装置5からの放電を禁止し、蓄電装置5への充電を許可する。これにより、蓄電装置5が過放電状態になることを抑制しつつ、電力線11、12からの電力を回収(吸収)することができる。蓄電装置5が過放電状態になることを抑制することによって、第1の車両1Aが起動不能になることを抑制することができ、尚且つ、蓄電素子6の寿命を長期化することができる。
蓄電装置5のSOCが第2の設定値SOC12以上かつ第1の設定値SOC11以下である場合、またはSOCが第4の設定値SOC21以上かつ第3の設定値SOC22以下である場合、コントローラ9Aは、蓄電装置5の充電と放電の可否状態を切り替えずに維持する。即ち、蓄電装置5のSOCが第2の設定値SOC12と第1の設定値SOC11との間にある場合、コントローラ9Aは、蓄電装置5の充放電が可能な状態または放電のみ可能な状態の履歴を維持する。一方、蓄電装置5のSOCが第4の設定値SOC21と第3の設定値SOC22との間にある場合、コントローラ9Aは、蓄電装置5の充放電が可能な状態または充電のみ可能な状態の履歴を維持する。
図5及び図6は、第1の実施形態による蓄電装置5の充放電状態の切替えを示すフロー図である。図2、図5並びに図6を参照して、蓄電装置5の充放電状態の切替えについて説明する。
図3は、第2の実施形態による蓄電装置5の充放電の可否を示すグラフである。第2の実施形態では、コントローラ9Aは、第1の車両1Aと第2の車両1Bとの間の距離の検出値L(以下、単に、距離Lともいう)に基づいて、蓄電装置5の充電または放電の可否を制御する。縦軸は、充放電の可否を示す。横軸は、距離Lを示す。
コントローラ9Aは、距離Lが第1の設定値L1より大きい場合に、蓄電装置5による充電および放電を禁止する。第1の車両1Aが第2の車両1Bへ電力を供給し、あるいは、第2の車両1Bから電力を回収する場合、第1の車両1Aと第2の車両1Bとの間の電力の受け渡しは、電力線11、12を介して行われる。よって、第1の車両1Aと第2の車両1Bとの間の距離Lが大きい場合、電力線11、12の抵抗による電力損失が大きくなる。そこで、コントローラ9Aは、距離Lが第1の設定値L1より大きい場合には、蓄電装置5による充電および放電を禁止する。この場合、第1の車両1Aと第2の車両1Bとは、それぞれ独立に走行し、あるいは、待機すればよい。尚、第1の設定値L1は、電力線11、12の抵抗、電圧等の様々な条件を考慮して決定すればよい。
逆に、コントローラ9Aは、距離Lが第2の設定値L2より小さい場合に、蓄電装置5による充電および放電を許可する。尚、第2の設定値L2は、第1の設定値L1よりも小さい。第1の車両1Aと第2の車両1Bとの間の距離Lが小さい場合、電力線11、12の抵抗による電力損失が小さい。従って、コントローラ9Aは、距離Lが第2の設定値L2より小さい場合には、蓄電装置5による充電および放電を許可する。
距離Lが第2の設定値L2以上かつ第1の設定値L1以下である場合、コントローラ9Aは、蓄電装置5の充電または放電の可否状態を切り替えずに維持する。即ち、距離Lが第2の設定値L2と第1の設定値L1との間にある場合、コントローラ9Aは、蓄電装置5の充電または放電の可否状態の履歴を維持する。
図7は、第2の実施形態による蓄電装置5の充放電状態の切替えを示すフロー図である。図3および図7を参照して、蓄電装置5の充放電状態の切替えについて説明する。
図4は、第3の実施形態による蓄電装置5の充放電の可否を示すグラフである。第3の実施形態では、コントローラ9Aは、電力線11(または12)の電圧値の検出値E(以下、単に、電圧値Eともいう)に基づいて、蓄電装置5の充電または放電の可否を制御する。縦軸は、充放電の可否を示す。横軸は、電圧値Eを示す。尚、電圧値Eは、電力線11、12の電圧差の検出値と言ってもよい。
コントローラ9Aは、電圧値Eが第1の設定値E1より大きい場合に、蓄電装置5への充電を許可しかつ蓄電装置5からの放電を禁止する。電圧値Eが高いことは、第2の車両1Bが第1の車両1Aの付近で電力を回生していることを意味する。即ち、コントローラ9Aは、電圧Eが第1の設定値E1より高いことによって、第1の車両1Aと第2の車両1Bとの距離が近いこと、並びに、第2の車両1Bが電力を回生していることを判断できる。従って、この場合、コントローラ9Aは、蓄電装置5による充電を許可しかつ放電を禁止する。
逆に、コントローラ9Aは、電圧値Eが第2の設定値E2より小さい場合に、蓄電装置5からの放電を許可しかつ蓄電装置5への充電を禁止する。尚、第2の設定値E2は、第1の設定値E1よりも小さい。電圧値Eが低いことは、第2の車両1Bが第1の車両1Aの付近で走行しており力行中であることを意味する。即ち、コントローラ9Aは、電圧値Eが第2の設定値E2より低いことによって、第1の車両1Aと第2の車両1Bとの距離が近いこと、並びに、第2の車両1Bが力行中であることを判断できる。従って、この場合、コントローラ9Aは、蓄電装置5による放電を許可しかつ充電を禁止する。
電圧値Eが第2の設定値E2以上かつ第1の設定値E1以下である場合、コントローラ9Aは、蓄電装置5の充電または放電の可否状態を切り替えずに維持する。即ち、電圧値Eが第2の設定値E2と第1の設定値E1との間にある場合、コントローラ9Aは、蓄電装置5の充電または放電の可否状態の履歴を維持する。
図8は、第3の実施形態による蓄電装置5の充放電状態の切替えを示すフロー図である。図4および図8を参照して、蓄電装置5の充放電状態の切替えについて説明する。
Claims (8)
- 或る電力線に電気的に接続された第1の車両および第2の車両を含む鉄道システムであって、
前記第1の車両は、
駆動部と、
前記電力線からの電力を得て前記駆動部を駆動するインバータと、
前記電力線へ電力を供給し、あるいは、前記電力線からの電力を蓄積する蓄電装置と、
前記蓄電装置の電荷蓄積量、前記第1の車両と前記第2の車両との間の距離、または、前記電力線の電圧値のいずれかの検出値に基づいて、前記蓄電装置の充電または放電の可否を制御する制御部とを備え、
前記蓄電装置による充電または放電を許可状態から禁止状態へ切り替えるときの前記検出値を第1の設定値とし、前記蓄電装置による充電または放電を禁止状態から許可状態へ切り替えるときの前記検出値を第2の設定値とすると、前記第1の設定値と前記第2の設定値とは相違する、鉄道システム。 - 前記検出値が前記第1の設定値と前記第2の設定値との間にある場合、前記制御部は、前記蓄電装置の充電または放電の可否状態を切り替えることなく維持している、請求項1に記載の鉄道システム。
- 前記検出値と前記蓄電装置の充電または放電の可否との関係は、ヒステリシスを有する、請求項1または請求項2に記載の鉄道システム。
- 前記制御部は、前記蓄電装置の電荷蓄積量の検出値が第1の設定値より大きい場合に、前記蓄電装置による放電を許可しかつ充電を禁止し、
前記制御部は、前記蓄電装置の電荷蓄積量の検出値が第2の設定値より小さい場合に、前記蓄電装置による充電を許可しかつ放電を禁止し、
前記第1の設定値は前記第2の設定値よりも大きく、
前記制御部は、前記蓄電装置の電荷蓄積量の検出値が前記第1の設定値と前記第2の設定値との間にある場合には、前記蓄電装置の充電または放電の可否状態を維持する、請求項1から請求項3のいずれか一項に記載の鉄道システム。 - 前記制御部は、前記第1の車両と前記第2の車両との間の距離の検出値が第1の設定値より大きい場合に、前記蓄電装置による充電および放電を禁止し、
前記制御部は、前記第1の車両と前記第2の車両との間の距離の検出値が第2の設定値より小さい場合に、前記蓄電装置による充電および放電を許可し、
前記第1の設定値は前記第2の設定値よりも大きく、
前記制御部は、前記第1の車両と前記第2の車両との間の距離の検出値が前記第1の設定値と前記第2の設定値との間にある場合には、前記蓄電装置の充電または放電の可否状態を維持する、請求項1から請求項3のいずれか一項に記載の鉄道システム。 - 前記制御部は、前記電力線の電圧値の検出値が第1の設定値より大きい場合に、前記蓄電装置による充電を許可しかつ放電を禁止し、
前記制御部は、前記電力線の電圧値の検出値が第2の設定値より小さい場合に、前記蓄電装置による放電を許可しかつ充電を禁止し、
前記第1の設定値は前記第2の設定値よりも大きく、
前記制御部は、前記電力線の電圧値の検出値が前記第1の設定値と前記第2の設定値との間にある場合には、前記蓄電装置の充電または放電の可否状態を維持する、請求項1から請求項3のいずれか一項に記載の鉄道システム。 - 前記蓄電装置は、前記インバータへ電力を供給し、あるいは、前記インバータからの電力を蓄積する、請求項1に記載の鉄道システム。
- 前記第1の車両は、前記第2の車両または地上に設置された基地局と通信可能な通信部をさらに備え、
前記制御部は、該第1の車両の位置情報と前記第2の車両または前記基地局から得た前記第2の車両の位置情報とから前記第1の車両と前記第2の車両との距離を算出する、請求項5に記載の鉄道システム。
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| WO2018139200A1 (ja) * | 2017-01-24 | 2018-08-02 | 株式会社村田製作所 | 電力変換装置及びパワーコンディショナ |
| JP2019147447A (ja) * | 2018-02-27 | 2019-09-05 | 東日本旅客鉄道株式会社 | 電力供給システムおよび同システムの制御方法 |
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| KR102129132B1 (ko) * | 2018-07-11 | 2020-07-01 | 효성중공업 주식회사 | Ess 충방전 운전 방법 |
| CN112440747A (zh) * | 2019-08-29 | 2021-03-05 | 比亚迪股份有限公司 | 轨道车辆的驱动控制方法和装置、存储介质、电子设备 |
| FR3112729B1 (fr) * | 2020-07-27 | 2022-08-26 | Alstom Transp Tech | Dispositif de détection de dégradation de surface de contact d’un système d’alimentation électrique d’un véhicule |
| PL439601A1 (pl) * | 2021-11-23 | 2023-05-29 | Dmowska-Andrzejuk Danuta | Sposób i układ zasilania trakcji elektrycznej prądu stałego |
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| US10363835B2 (en) | 2019-07-30 |
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