WO2017009978A1 - V2gシステム及び充放電制御方法 - Google Patents
V2gシステム及び充放電制御方法 Download PDFInfo
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- WO2017009978A1 WO2017009978A1 PCT/JP2015/070281 JP2015070281W WO2017009978A1 WO 2017009978 A1 WO2017009978 A1 WO 2017009978A1 JP 2015070281 W JP2015070281 W JP 2015070281W WO 2017009978 A1 WO2017009978 A1 WO 2017009978A1
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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]
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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
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
- H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
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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
- H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
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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
- B60L2240/66—Ambient conditions
- B60L2240/662—Temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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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
- 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
- Y02E60/10—Energy storage using 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
- 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
- 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
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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]
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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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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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
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
Definitions
- the present invention relates to a V2G system and charge / discharge control method in V2G (Vehicle to Grid) capable of bi-directional power transfer between a power storage device provided in a transport device and an electric power system.
- V2G Vehicle to Grid
- Patent Document 1 in a vehicle charging system having a timekeeping function to enable a charge reservation, even if an abnormality occurs in the timekeeping function, charging is performed as much as possible at the reserved charge start time.
- a vehicle charging system that can be started is described.
- the control unit determines the time until the charging start time in the normal mode based on the remaining power of the 12V battery and its own power consumption. It is determined whether or not it is possible to continue to start. And when it determines with continuing starting being possible, it waits until charging start time in normal mode.
- each battery of a plurality of automobiles is charged at the time of non-peak electricity demand in an establishment that is a power consumer who receives power supply from an electric power company or using the late-night power of each automobile owner.
- a load leveling system is disclosed in which the electric power stored in the battery of the charged automobile is released at the time of peak power demand in the office.
- the control unit continues to start in the normal mode until the charging start time, and therefore reaches the charging start time. It is possible to start the charging of the high-power battery by determining that it has been performed. However, in this vehicle charging system, no discharge is performed from the high-power battery mounted on the vehicle to the external power supply side.
- V2G Vehicle to
- a V2G (Vehicle to) Grid) system capable of bidirectional power transfer between an electric power system including a commercial power grid and an electric vehicle such as EV (ElectriclectVehicle) or PHEV (Plug-in Hybrid Electric Vehicle)
- EV ElectrolectVehicle
- PHEV Plug-in Hybrid Electric Vehicle
- the load leveling system described in Patent Document 2 contributes to load leveling the next morning by supplying power to the office from the battery of the car stopped in the parking lot in the daytime.
- the battery is charged at the office of the automobile or the battery is charged by using the midnight power at home.
- a battery mounted on the vehicle is connected to one of the parking lot outlet groups via a bidirectional charger.
- the battery is connected to an outlet, it is a standby mode that does not charge / discharge, but when the power demand at the office increases, the vehicle is instructed to enter the discharge mode and the power demand decreases The vehicle is instructed to enter standby mode.
- this load leveling system performs load leveling by exchanging power between an office and a vehicle, and does not perform load leveling in a power system including a commercial power network. For this reason, the number of vehicles participating in V2G and the contract probability of power transactions between the power supplier and the power consumer cannot be increased, and the commercial power system cannot be stabilized.
- An object of the present invention is to increase the number of vehicles participating in V2G and to increase the contract probability of power trading between a power supplier and a power consumer, so that the V2G system and charge / discharge control bring about stabilization of the power system. Is to provide a method.
- a power system A storage device (for example, a main battery 104 in an embodiment described later) provided in a transportation device (for example, an electric vehicle 15 in an embodiment described later), and conversion of electric power exchanged between the capacitor and the power system.
- a storage device for example, a main battery 104 in an embodiment described later
- a transportation device for example, an electric vehicle 15 in an embodiment described later
- a power converter for example, a bidirectional charger 103 in an embodiment described later
- a receiver for example, a digital communication unit 102 in an embodiment described later
- the receiver A control unit (for example, a charge / discharge ECU 107 in an embodiment described later) that controls the operation of the power conversion unit according to the signal received by
- a server device for example, an aggregator 17 in an embodiment described later
- the server device performs a time series analysis of the amount of power supplied by the power supplier to the power system and the amount of power supplied from the power system to the power consumer, and performs power supply and demand prediction in the power system.
- the charge / discharge device is a V2G system in which the control unit is activated or suspended based on a time indicated by the command transmitted from the server device and received by the reception unit.
- the invention according to claim 2 is the invention according to claim 1,
- the server device has a power supply and demand prediction result, a minimum transaction unit of the amount of power managed when power is transferred to and from the power system, and power reserved for selling power to the power system. Based on the total amount, a time for performing the discharging or the charging in the charging / discharging device is determined.
- the invention according to claim 3 is the invention according to claim 1 or 2
- the server device is a power supply / demand prediction result, a contribution degree of the charge / discharge device to the electric power system, and a charging suitability in a time zone for charging the battery, which is derived from a deterioration influence degree given to the battery, Based on the above, a time for performing the charging in the charging / discharging device is determined such that the higher the contribution is, the more the charging is performed in the time zone in which the charging suitability is higher.
- the invention according to claim 4 is the invention according to any one of claims 1 to 3,
- the control unit of the charge / discharge device starts the discharge from a time earlier than a start time of the discharge indicated by the command by a predetermined time if the charged amount of the battery is equal to or greater than a predetermined amount, and the command indicates Control the operation of the power conversion unit to perform the discharge until the end time of discharge,
- the server device manages the contribution to the power system for each charge / discharge device, and the contribution to the charge / discharge device having the capacitor discharged longer than the time for performing the discharge indicated by the command. Set high.
- the invention according to claim 5 is the invention according to any one of claims 1 to 3,
- the control unit starts the discharge from a time earlier than the start time of the discharge indicated by the command if the positive degree of discharge from the capacitor to the power system is greater than or equal to a predetermined value, Controlling the operation of the power converter so as to perform the discharge until the end time of the discharge indicated by the command,
- the server device manages the contribution to the power system for each charge / discharge device, and the contribution to the charge / discharge device having the capacitor discharged longer than the time for performing the discharge indicated by the command. Set high.
- the invention according to claim 6 is the invention according to any one of claims 1 to 3,
- the controller starts the discharge from the start time of the discharge indicated by the command until a time later by a predetermined time than the end time of the discharge indicated by the command if the storage amount of the capacitor is equal to or greater than a predetermined amount.
- the server device manages the contribution to the power system for each charge / discharge device, and the contribution to the charge / discharge device having the capacitor discharged longer than the time for performing the discharge indicated by the command. Set high.
- the invention according to claim 7 is the invention according to any one of claims 1 to 3,
- the control unit starts the discharge from the start time of the discharge indicated by the command if the positive degree of discharge from the capacitor to the power system set in advance is greater than or equal to a predetermined value, and the discharge indicated by the command Controlling the operation of the power converter so as to perform the discharge until a time later than the end time of
- the server device manages the contribution to the power system for each charge / discharge device, and the contribution to the charge / discharge device having the capacitor discharged longer than the time for performing the discharge indicated by the command. Set high.
- the invention according to claim 8 provides: A power system; A storage device (for example, a main battery 104 in an embodiment described later) provided in a transportation device (for example, an electric vehicle 15 in an embodiment described later), and conversion of electric power exchanged between the capacitor and the power system.
- a storage device for example, a main battery 104 in an embodiment described later
- a transportation device for example, an electric vehicle 15 in an embodiment described later
- a power converter for example, a bidirectional charger 103 in an embodiment described later
- a receiver for example, a digital communication unit 102 in an embodiment described later
- the receiver A control unit (for example, a charge / discharge ECU 107 in an embodiment described later) that controls the operation of the power conversion unit according to the signal received by A charge / discharge control method for the battery in a V2G system comprising a server device (for example, an aggregator 17 in an embodiment described later) that manages charge / discharge of the battery in the charge / discharge device,
- the server device performs a time series analysis of the amount of power supplied by the power supplier to the power system and the amount of power supplied from the power system to the power consumer, and performs power supply and demand prediction in the power system.
- the control unit is activated or suspended based on the time indicated by the command transmitted from the server device and received by the receiving unit.
- the time which the electrical storage of a charging / discharging apparatus charges / discharges is determined by the server apparatus based on the power supply-demand prediction result, and a charging / discharging apparatus operate
- command from a server apparatus is set highly, the profit rate for the owner of a charging / discharging apparatus will become high.
- the charging / discharging time of the battery of the charging / discharging device is determined by the server device based on the minimum transaction unit of the amount of power managed at the time of power transmission / reception with the electric power system. Operates according to the command.
- the probability of selling power from the charge / discharge device to the server device and the probability of selling power from the server device to the power system can be improved. This advantage can promote positive discharge of the charging / discharging device, resulting in stabilization of the power system.
- the profit between the four parties engaged in V2G such as the server device, the owner of the charge / discharge device, the operator of the power system, and the power consumer can be maximized.
- the control part of the charging / discharging device may be stopped except during the time for performing charging / discharging according to the command from the server device and the standby time, the durability of the control part can be ensured.
- power consumption by the control unit while charging / discharging is not performed can be reduced.
- the charge / discharge time indicated by the command transmitted from the server device is the result of performing a time series analysis of the power amount to predict the supply and demand of power, and the minimum transaction unit of the power amount managed by the server device. It is determined based on.
- the content of the command to the charging / discharging device can be determined based on the time zone in which the power supply amount is tight with respect to the power demand amount and the time zone in which the power supply amount has a margin with respect to the power demand amount. .
- the power supply / demand prediction result the minimum transaction unit of a value that is generally never small used in the power trading market, and the server device for selling power to the power system.
- the time for discharging in the charging / discharging device is determined. It is difficult to store a large amount of power enough to satisfy the minimum transaction unit in a storage device installed in a transport device, and the charge / discharge device is not required to discharge a large amount of power. Improves the probability of electricity execution.
- the server device can maximize power sale to the power system.
- the contribution to the power system, and the charge suitability the higher the contribution, the higher the charge suitability is charged in the time zone.
- the time for charging in the charging / discharging device is determined. Charge / discharge devices with a high degree of contribution are often instructed to start charging in a time zone with a high charge suitability, so that the progress of deterioration of the battery can be delayed. In particular, in the time zone when the charging suitability is high, the progress of deterioration of the battery can be made almost zero. Because of this advantage, since there is anxiety that the battery will deteriorate when participating in V2G, the owner of the charging / discharging device who hesitates to participate in V2G can be encouraged to actively discharge the charging / discharging device.
- the contribution to the electric power system is set to be high for the charge / discharge device having the capacitor that has been discharged longer than the command from the server device. If the contribution level is set high, the profit rate for the owner of the charging / discharging device at the time of charging increases, so that the active discharging of the charging / discharging device can be promoted. Moreover, if the discharge is performed in a time zone in which the power supply amount is tight with respect to the power demand amount, the stability of the power system is improved.
- the charging / discharging device can sell power in the adjustment market immediately before this, and can further contribute to the stabilization of the power system.
- the profit between the four parties engaged in V2G such as the server device, the owner of the charge / discharge device, the operator of the power system, and the power consumer can be maximized.
- FIG. 1 It is a figure which shows the whole structure of a V2G system. It is a block diagram which shows the external power supply device and electric vehicle which comprise some V2G systems shown in FIG. It is a block diagram which shows the aggregator and communication network which comprise some V2G systems shown in FIG. It is a flowchart explaining the charge / discharge control of the main battery which the electric vehicle managed by an aggregator has. It is a figure which shows each change of the output of a main battery and SOC accompanying an example of charging / discharging including V2G of the main battery which an electric vehicle has. It is a figure which shows each change of the output of a main battery and SOC accompanying the other example of charging / discharging including V2G of the main battery which an electric vehicle has.
- V2G Vehicle to Grid
- V2G Vehicle to Grid
- a battery mounted on the electric vehicle is Used as a power storage facility. For this reason, bidirectional power transfer is performed between the electric vehicle participating in V2G and the power system.
- FIG. 1 is a diagram showing the overall configuration of the V2G system.
- the V2G system includes a power plant 11 that generates power using energy such as thermal power, wind power, nuclear power, or sunlight, and a power transmission network 12 that is generated by a power supplier including the power plant 11.
- a power customer 13 who needs electricity and is supplied with power
- an external power supply device 14 connected to the power grid 12 through a distribution facility (not shown), and a chargeable / dischargeable battery storage device.
- Electric vehicle 15 such as EV (Electrical Vehicle) or PHEV (Plug-in Hybrid Electric Vehicle), communication network 16, and charging / discharging of the electric storage device included in electric vehicle 15 via external power supply device 14 connected to communication network 16
- an aggregator 17 for managing the above.
- the aggregator 17 can meet the demands of a power company that operates the power plant 11 or a power transmission company that operates the power transmission network 12 by managing charging and discharging of a plurality of power storage devices including a power storage device of the electric
- FIG. 2 is a block diagram showing the external power supply device 14 and the electric vehicle 15 constituting a part of the V2G system shown in FIG.
- the external power supply device 14 includes a connector 22 provided at the tip of the cable 21 and a digital communication unit 23.
- the electric vehicle 15 includes an inlet 101, a digital communication unit 102, a bidirectional charger 103, a main battery 104, a converter (CONV) 105, a sub battery 106, a charge / discharge ECU 107, a battery ECU 108, And a wireless unit 109.
- CONV converter
- waiting it is not preferable in terms of durability that the startup state of the electrical component continues for a long time, and it is desirable to pause the electrical component as necessary.
- the connector 22 exchanges electric power between the external power supply device 14 and the electric vehicle 15 in a state where it is connected to the inlet 101 of the electric vehicle 15.
- the digital communication unit 23 is connected to the communication network 16 via the home gateway 18, and the signal obtained from the aggregator 17 is transmitted and received between the external power supply device 14 and the electric vehicle 15 using the power line communication technology. Superimpose. For this reason, the control signal from the aggregator 17 is sent to the electric vehicle 15 if the connector 22 is connected to the inlet 101 of the electric vehicle 15.
- the connector 22 of the external power supply device 14 can be attached to and detached from the inlet 101.
- the digital communication unit 102 receives a signal superimposed on electricity from the external power supply device 14 by power line communication (digital communication) technology with the connector 22 of the external power supply device 14 attached to the inlet 101, and the electric vehicle 15 When participating in V2G, an operation corresponding to the command indicated by this signal is performed.
- the connection form of the electric vehicle 15 and the external power supply device 14 is not limited to physical connection by the inlet 101 and the connector 22 but is electromagnetic such as non-contact charge / discharge in a state where the inlet 101 and the connector 22 are close to each other. It may be a simple connection.
- the bidirectional charger 103 converts the AC voltage obtained from the external power supply device 14 into a DC voltage via the inlet 101 and the digital communication unit 102.
- the main battery 104 is charged with the electric power converted into the DC voltage by the bidirectional charger 103.
- the bidirectional charger 103 converts the DC voltage discharged from the main battery 104 into an AC voltage.
- the electric power converted into the AC voltage by the bidirectional charger 103 is sent to the external power supply device 14 via the inlet 101.
- the main battery 104 is a secondary battery that outputs a high DC voltage such as 100 to 200 V, for example, and supplies power to an electric motor (not shown) that is a drive source of the electric vehicle 15.
- Converter 105 steps down the output voltage of main battery 104 to a constant voltage while maintaining a direct current.
- the sub-battery 106 is charged with the electric power stepped down by the converter 105.
- the sub-battery 106 is a secondary battery that outputs a DC low voltage such as 12 V, for example, and supplies power to an auxiliary machine or the like of the electric vehicle 15.
- the charge / discharge ECU 107, the battery ECU 108, and the wireless unit 109 surrounded by a dotted line in FIG. 2 are activated or stopped according to a command indicated by the signal received by the digital communication unit 102 even when the electric vehicle 15 is parked.
- the charge / discharge ECU 107 controls the operation of the bidirectional charger 103.
- the charging / discharging ECU 107 controls the operation of the bidirectional charger 103, whereby the main battery 104 is charged or discharged.
- the battery ECU 108 derives the remaining capacity (SOC: State of Charge) of the main battery 104 and performs control according to the storage state of the main battery 104 and the like.
- the wireless unit 109 wirelessly transmits to the aggregator 17 information such as participation or non-participation of the electric vehicle 15 in V2G, the degree of activeness when participating in V2G, the time zone in which V2G can participate, and the discharge state of the main battery 104. To do. In addition, participation in V2G or non-participation, the positive degree in participating in V2G, and the time slot
- FIG. 3 is a block diagram showing an aggregator 17 and a communication network 16 that constitute a part of the V2G system shown in FIG.
- the aggregator 17 includes a power amount database 201, a setting information database 202, an analysis unit 203, a determination unit 204, a transmission unit 205, and a wireless unit 206.
- the power amount database 201 is a database having information on the amount of power supplied by the power supplier including the power plant 11 to the power system and past and present information on the amount of power supplied from the power system to the power consumer 13.
- the setting information database 202 is a database having information such as participation or non-participation in V2G for each electric vehicle 15, degree of positiveness in participation in V2G, time zone in which V2G can participate, and contribution to the power system.
- the analysis unit 203 performs time series analysis of the power amount using information included in the power amount database 201, and performs power supply / demand prediction in the power system.
- the determination unit 204 is configured to discharge or power the main battery 104 included in the electric vehicle 15 from the main battery 104 to the electric power system based on the power supply / demand prediction result performed by the analysis unit 203 and information on each electric vehicle 15 included in the setting information database 202.
- the time for charging the main battery 104 with the electric power supplied from the system is determined for each electric vehicle 15.
- the transmission unit 205 transmits a command including the time for discharging or charging the main battery 104 determined by the determination unit 204 to the electric vehicle 15 via the communication network 16 and the external power supply device 14.
- Determination unit 204 sets an incentive when charging / discharging main battery 104 of electric vehicle 15 in accordance with a command from aggregator 17 to be higher than an incentive when charging / discharging in another time zone.
- the incentive is a profit for the owner of the electric vehicle 15 when the electric vehicle 15 buys and sells electricity, and the main profit is money.
- the wireless unit 206 receives information such as participation or non-participation in the V2G transmitted from the electric vehicle 15 wirelessly, a degree of activeness when participating in the V2G, a time zone in which the V2G can participate, a discharge state of the main battery 104, and the like. To do. Information received by the wireless unit 206 is stored in the setting information database 202.
- step S101 the charging / discharging ECU 107, the battery ECU 108, and the wireless unit 109 of the electric vehicle 15 stop operating (step S103).
- step S105 the digital communication unit 102 of the electric vehicle 15 receives a signal including an instruction for discharging or charging the main battery 104 from the aggregator 17 (step S105: Yes)
- step S107 the process proceeds to step S107.
- step S107 the digital communication unit 102 determines whether it is a predetermined time before the discharge or charging start time indicated by the command from the aggregator 17, and if the time is a predetermined time before the start time, step S109. If it is a time point more than the predetermined time before the said start time, it will return to step S105. If the time point at which the signal is received in step S105 has already passed a predetermined time before the start time, the process proceeds to step S109 in order to prevent frequent activation and suspension. In step S109, the digital communication unit 102 activates the charge / discharge ECU 107, the battery ECU 108, and the radio unit 109.
- step S111 discharging or charging of the main battery 104 of the electric vehicle 15 is started at the start time (step S111).
- step S113 when the end time indicated by the command from the aggregator 17 received in advance is reached, or when the digital communication unit 102 receives a discharge or charge end command from the aggregator 17 (step S113: Yes), the process returns to step S103.
- the charge / discharge ECU 107, the battery ECU 108, and the wireless unit 109 of the electric vehicle 15 are deactivated.
- the charge / discharge ECU 107 starts discharging the main battery 104 at the time of the discharge start time indicated by the command from the aggregator 17, and at the time of the discharge end time indicated by the command from the aggregator 17. End the discharge.
- the charge / discharge ECU 107 starts discharging from a time before the start time indicated by the command from the aggregator 17. Or the discharge may be terminated at a time later than the end time indicated by the command.
- the discharge start time indicated by the command from the aggregator 17 is 18:00 and the end time is 19:00
- the charge / discharge ECU 107 starts discharging the main battery 104 at 17:30
- the discharge of the main battery 104 may be terminated.
- the aggregator 17 sets the contribution degree and incentive with respect to an electric power system high to the electric vehicle 15 which has the main battery 104 discharged longer than the instruction
- the power trading market in V2G there is an adjusted market immediately before both the unit trading time and the unit trading amount are small, apart from the normal trading market, and the discharge can be longer than the command from the aggregator 17. Can sell electricity in the adjustment market immediately before this, and can contribute further by stabilizing the power system.
- FIG. 5 is a diagram illustrating changes in the output of the main battery 104 and the SOC according to an example of charging / discharging including V2G of the main battery 104 included in the electric vehicle 15.
- the electric vehicle 15 travels from, for example, home to the workplace around 8:00 am
- the main battery 104 is charged at the workplace and left until around 6:00 pm, then 6:00 pm
- the electric vehicle 15 travels from the workplace to the home.
- the electric vehicle 15 arrives at home and is connected to the external power supply device 14, it is possible to participate in V2G.
- FIG. 5 is a diagram illustrating changes in the output of the main battery 104 and the SOC according to an example of charging / discharging including V2G of the main battery 104 included in the electric vehicle 15.
- the electric power demand suddenly increases for about 2 hours from around 6 pm when the electric vehicle 15 returns to the home, and the electric power supply amount is tight with respect to the electric power demand.
- a discharge command is sent from the aggregator 17 to the connected electric vehicle 15, and the main battery 104 continuously discharges. Thereafter, when the power demand decreases, the main battery 104 is charged and discharged in accordance with a command from the aggregator 17 until about 3 am. After 3 am, the main battery 104 is charged until it is fully charged in preparation for the next morning run.
- a charge / discharge command for supplying power to adjust the frequency in the power system is stable. It may be sent to the vehicle 15.
- the aggregator 17 may set the contribution degree to the power system high with respect to the electric vehicle 15 that contributes to the stabilization of the frequency in the power system even if power is not substantially supplied to the power system. .
- the external power supply 14 capable of communicating with the aggregator 17 is provided in the workplace, as shown in FIGS. 6 and 7, the operation is performed from about 6 pm to about 3 am as shown in FIG. Participation in V2G may take place during the daytime. Even for vehicles that actively participate in V2G as in the examples shown in FIGS. 6 and 7, the durability of these electrical components can be ensured by switching between the resting state and the starting state of the charge / discharge ECU 107 and the like. .
- FIG. 8 is a diagram showing the supply and demand balance of the electric power market and the change in temperature in the time zone for participating in V2G shown in FIG. 5 and the previous time zone.
- the power supply amount is more than the power demand amount, and therefore the aggregator 17 is connected to the electric vehicle 15 that can participate in V2G. Commands the main battery 104 to be charged with power from the power grid.
- the power supply amount is tight with respect to the power demand amount for about 2 hours from about 6:00 pm when the sunset falls
- the aggregator 17 is connected to the power system from the main battery 104 for the electric vehicle 15 that can participate in V2G. Command to discharge.
- the aggregator 17 charges the main battery 104 mainly by power from the power system for the electric vehicle 15 that can participate in V2G. To do.
- the aggregator 17 issues a discharge or charge command to the main battery 104 of the electric vehicle 15 that can participate in V2G.
- This command indicates the start time and end time of the discharge or charge.
- the electric vehicle 15 exchanges electric power according to the time from the start time to the end time with the electric power system.
- the determination unit 204 of the aggregator 17 calculates the difference between the multiple of the minimum transaction unit and the total amount of power secured by the aggregator 17 for selling power to the power system from the main battery 104 of the electric vehicle 15. The time for discharging for each electric vehicle 15 is determined so that the amount of electric power discharged can be compensated.
- the minimum transaction unit is represented by a square
- the total amount of power secured by the aggregator 17 for selling power to the power system is represented by a hatched area.
- the amount of power secured by the aggregator 17 for selling power to the power system includes the amount of power supplied from the power supplier including the power plant 11 in addition to the amount of power discharged from other electric vehicles. Is included.
- the amount of power that can be reversely flowed (sold) by one electric vehicle is about 15-50 kWh.
- the aggregator 17 can easily satisfy the minimum transaction unit by designating the discharge time of each electric vehicle, and the electric power from the electric vehicle supplied to the electric power system can be dramatically increased.
- the determination unit 204 of the aggregator 17 determines the power supply / demand prediction result performed by the analysis unit 203, the degree of contribution to the power system of each electric vehicle 15 stored in the setting information database 202, and the deterioration given to the main battery 104. Based on the charging suitability (Charge appropriateness level) of the time zone for charging the main battery 104 derived from the influence degree, the main battery 104 is charged in the time zone with a higher charge suitability as the contribution degree is higher. The time for charging the electric vehicle 15 is determined. As a result, the charge start time in the electric vehicle 15 with a high contribution is often a time zone with a high charge suitability, and the progress of deterioration of the main battery 104 in the electric vehicle 15 with a high contribution can be delayed.
- the degree of deterioration influence on the main battery 104 is derived based on a daily temperature change prediction at the position of the electric vehicle 15. Generally, if the temperature during charging of the secondary battery is too high, the degree of deterioration is increased. In the example shown in FIG. 8, in the time zone just shifted from nightfall to nighttime, the temperature is still high and the degree of deterioration is high, so the charging suitability is low. When the temperature becomes about 25 ° C., the degree of deterioration influence decreases, and the charge suitability increases.
- the temperature at the time of charging is low, an active material deposition phenomenon at the negative electrode called electrodeposition occurs, and the charging current needs to be limited because there is a concern that durability against charging / discharging of the main battery 104 is deteriorated.
- the main battery 104 is charged by constant voltage charging for a long time due to a decrease in the activity of the chemical reaction in the main battery 104. Due to these factors, it takes a long time for the main battery 104 to be fully charged, so the use of electrical components for charging also takes a long time.
- the use deterioration of the electrical equipment is also promoted, so that the charge suitability in the midnight time zone in a cold region is low.
- it is a time zone that has just shifted from nightfall to nighttime it is not necessary to limit the charging current because the temperature is higher than the time zone at midnight, and it takes a long time before the main battery 104 is fully charged. Therefore, the charging suitability is higher than the midnight time zone.
- the aggregator 17 sets the contribution and incentive to the electric power system to be high for the electric vehicle 15 having the main battery 104 that has been discharged for a longer time than the discharge time determined by the determination unit 204. For example, when the start time of the discharge time determined by the determination unit 204 is 18:00 and the end time is 19:00, the main battery that started discharging at 17:30 and discharged until 19:00 The aggregator 17 sets a high contribution to the electric vehicle 15 of the main battery 104 after the electric vehicle 15 of 104 or 18:00 starts discharging until 19:30.
- the time during which the main battery 104 of the electric vehicle 15 participating in V2G is charged / discharged is determined by the aggregator 17 based on the power supply / demand prediction result in the power system. . For this reason, if electric power is supplied from the electric vehicle 15 to the electric power system in accordance with a command from the aggregator 17 in a time zone when the electric power supply amount is tight with respect to the electric power demand amount, Supply stability is improved. If the main battery 104 of the electric vehicle 15 is charged in a time zone in which the power supply amount has a margin with respect to the power demand, the stability of the power system is improved.
- command from the aggregator 17 is set high, the profit rate of the owner of the electric vehicle 15 by performing V2G becomes high. Furthermore, the time during which the main battery 104 of the electric vehicle 15 is charged / discharged is determined by the aggregator 17 based on the minimum transaction unit of the amount of power managed when power is exchanged with the power system. Therefore, it is possible to improve the probability of selling power from the electric vehicle 15 to the aggregator 17 and the probability of selling power from the aggregator 17 to the power system. This advantage can encourage the electric vehicle 15 to actively participate in V2G, resulting in stabilization of the power system.
- the charging / discharging ECU 107, the battery ECU 108, and the wireless unit 109 of the electric vehicle 15 may be stopped except for the time for charging / discharging according to the command from the aggregator 17 and the standby time, and thus can be stopped.
- the durability of these components can be ensured.
- the power consumption by these components which can be stopped can be reduced.
- the aggregator 17 is a multiple of the minimum transaction unit that is generally never small used in the power trading market, and the total amount of power that the aggregator 17 reserves for selling power to the power system.
- the time for performing discharge for each electric vehicle 15 is determined so that the difference between the two can be compensated by the amount of power discharged from the main battery 104 of the electric vehicle 15. It is difficult for the main battery 104 of the electric vehicle 15 to store a large amount of power that satisfies the minimum transaction unit, and the electric vehicle 15 is not required to discharge a large amount of power, but the difference is smaller than the minimum transaction unit. Therefore, the probability of the sale of power from the electric vehicle 15 to the aggregator 17 is improved. In addition, the aggregator 17 can maximize the power sale to the power system.
- the aggregator 17 charges the electric vehicle 15 so that the main battery 104 is charged in a time zone in which the charge suitability is higher as the contribution is higher, based on the contribution to the power system and the charge suitability. To decide. Since the electric vehicle 15 having a high contribution is often instructed to start charging in a time zone when the temperature is low, the progress of deterioration of the main battery 104 can be delayed. In particular, in the time zone when the charging suitability is high, the progress of deterioration of the main battery 104 can be made almost zero. With this advantage, the owner of the electric vehicle 15 who hesitates to participate in V2G is encouraged to actively participate in V2G because he / she fears that the battery will deteriorate when participating in V2G. Can do.
- the electric vehicle 15 having the main battery 104 that has been discharged longer than the command from the aggregator 17 includes The contribution and incentive for are set high. Therefore, the profit rate of the owner of the electric vehicle 15 by performing V2G becomes high, and it is possible to encourage the electric vehicle 15 to actively participate in V2G. Moreover, if the discharge is performed in a time zone in which the power supply amount is tight with respect to the power demand amount, the stability of the power system is improved.
- the power trading market in V2G there is an adjusted market immediately before both the unit trading time and the unit trading amount are small, apart from the normal trading market, and the discharge can be longer than the command from the aggregator 17.
- the electric vehicle 15 can sell power in the adjustment market immediately before this, and can further contribute to the stabilization of the power system.
- the profit between the four persons engaged in V2G such as the aggregator 17, the owner of the electric vehicle 15, the person operating the power system, and the power consumer 13 can be maximized.
- the bidirectional charger 103 and the charge / discharge ECU 107 included in the electric vehicle 15 may be provided in the external power supply device 14. In this case, power is exchanged between the electric vehicle 15 and the external power supply device 14 by direct current. Further, the battery ECU 108 and the radio unit 109 of the electric vehicle 15 are activated or deactivated according to a command indicated by the signal received by the digital communication unit 102 even when the electric vehicle 15 is parked.
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Abstract
Description
電力系統と、
輸送機器(例えば、後述の実施形態での電動車両15)に設けられた蓄電器(例えば、後述の実施形態でのメインバッテリ104)と、前記蓄電器と前記電力系統の間で授受される電力の変換を行う電力変換部(例えば、後述の実施形態での双方向充電器103)と、外部からの信号を受信する受信部(例えば、後述の実施形態でのデジタル通信部102)と、前記受信部が受信した信号に応じて前記電力変換部の作動を制御する制御部(例えば、後述の実施形態での充放電ECU107)と、を有する充放電装置と、
前記充放電装置における前記蓄電器の充放電を管理するサーバ装置(例えば、後述の実施形態でのアグリゲータ17)と、を備え、
前記サーバ装置は、電力供給家が前記電力系統に供給する電力量及び前記電力系統から電力需要家に供給される電力量の時系列分析を行って、前記電力系統における電力の需給予測を行った結果と、前記電力系統との電力の授受の際に前記サーバ装置が管理している電力量の最小取引単位と、に基づいて、前記充放電装置における前記蓄電器から前記電力系統への放電又は前記電力系統から供給される電力による前記蓄電器の充電を行う時間を決定し、前記放電又は前記充電を行う時間を含む指令を前記充放電装置に送信し、
前記充放電装置では、前記サーバ装置から送信され前記受信部が受信した前記指令が示す時間に基づいて前記制御部が起動又は休止する、V2Gシステムである。
前記サーバ装置は、前記電力の需給予測結果と、前記電力系統との電力の授受の際に管理される電力量の最小取引単位と、前記電力系統への売電のために確保している電力量の総和と、に基づいて、前記充放電装置での前記放電又は前記充電を行う時間を決定する。
前記サーバ装置は、前記電力の需給予測結果と、前記充放電装置の前記電力系統に対する貢献度と、前記蓄電器に与える劣化影響度から導出された前記蓄電器を充電する時間帯の充電好適度と、に基づいて、前記貢献度が高いほど前記充電好適度の高い時間帯で前記蓄電器が充電されるよう、前記充放電装置での前記充電を行う時間を決定する。
前記充放電装置の前記制御部は、前記蓄電器の蓄電量が所定量以上であれば、前記指令が示す前記放電の開始時刻よりも所定時間早い時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する。
前記制御部は、予め設定された前記蓄電器から前記電力系統への放電の積極度合が所定以上であれば、前記指令が示す前記放電の開始時刻よりも所定時間早い時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する。
前記制御部は、前記蓄電器の蓄電量が所定量以上であれば、前記指令が示す前記放電の開始時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻よりも所定時間遅い時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する。
前記制御部は、予め設定された前記蓄電器から前記電力系統への放電の積極度合が所定以上であれば、前記指令が示す前記放電の開始時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻よりも所定時間遅い時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する。
電力系統と、
輸送機器(例えば、後述の実施形態での電動車両15)に設けられた蓄電器(例えば、後述の実施形態でのメインバッテリ104)と、前記蓄電器と前記電力系統の間で授受される電力の変換を行う電力変換部(例えば、後述の実施形態での双方向充電器103)と、外部からの信号を受信する受信部(例えば、後述の実施形態でのデジタル通信部102)と、前記受信部が受信した信号に応じて前記電力変換部の作動を制御する制御部(例えば、後述の実施形態での充放電ECU107)と、を有する充放電装置と、
前記充放電装置における前記蓄電器の充放電を管理するサーバ装置(例えば、後述の実施形態でのアグリゲータ17)と、を備えたV2Gシステムにおける、前記蓄電器の充放電制御方法であって、
前記サーバ装置は、電力供給家が前記電力系統に供給する電力量及び前記電力系統から電力需要家に供給される電力量の時系列分析を行って、前記電力系統における電力の需給予測を行った結果と、前記電力系統との電力の授受の際に前記サーバ装置が管理している電力量の最小取引単位と、に基づいて、前記充放電装置における前記蓄電器から前記電力系統への放電又は前記電力系統から供給される電力による前記蓄電器の充電を行う時間を決定し、前記放電又は前記充電を行う時間を含む指令を前記充放電装置に送信し、
前記充放電装置では、前記サーバ装置から送信され前記受信部が受信した前記指令が示す時間に基づいて前記制御部が起動又は休止する。
また、サーバ装置からの指令に応じた充放電を行う時間及びその待機時間の間以外は、充放電装置の制御部は休止していて良いため、制御部の耐久性を確保することができる。また、充放電を行っていない間の制御部による電力消費を低減できる。
さらに、サーバ装置から送信される指令が示す充放電を行う時間は、電力量の時系列分析を行って電力の需給予測を行った結果と、サーバ装置が管理している電力量の最小取引単位とに基づいて決定される。このため、電力需要量に対して電力供給量が逼迫した時間帯及び電力需要量に対して電力供給量に余裕がある時間帯に基づいて、充放電装置への指令内容を決定することができる。
12 送電網
13 電力需要家
14 外部電源装置
15 電動車両
16 通信網
17 アグリゲータ
18 ホームゲートウェイ
21 ケーブル
22 コネクタ
23 デジタル通信部
101 インレット
102 デジタル通信部
103 双方向充電器
104 メインバッテリ
105 コンバータ
106 サブバッテリ
107 充放電ECU
108 バッテリECU
109 無線部
201 電力量データベース
202 設定情報データベース
203 分析部
204 決定部
205 送信部
206 無線部
Claims (8)
- 電力系統と、
輸送機器に設けられた蓄電器と、前記蓄電器と前記電力系統の間で授受される電力の変換を行う電力変換部と、外部からの信号を受信する受信部と、前記受信部が受信した信号に応じて前記電力変換部の作動を制御する制御部と、を有する充放電装置と、
前記充放電装置における前記蓄電器の充放電を管理するサーバ装置と、を備え、
前記サーバ装置は、電力供給家が前記電力系統に供給する電力量及び前記電力系統から電力需要家に供給される電力量の時系列分析を行って、前記電力系統における電力の需給予測を行った結果と、前記電力系統との電力の授受の際に前記サーバ装置が管理している電力量の最小取引単位と、に基づいて、前記充放電装置における前記蓄電器から前記電力系統への放電又は前記電力系統から供給される電力による前記蓄電器の充電を行う時間を決定し、前記放電又は前記充電を行う時間を含む指令を前記充放電装置に送信し、
前記充放電装置では、前記サーバ装置から送信され前記受信部が受信した前記指令が示す時間に基づいて前記制御部が起動又は休止する、V2Gシステム。 - 請求項1に記載のV2Gシステムであって、
前記サーバ装置は、前記電力の需給予測結果と、前記電力系統との電力の授受の際に管理される電力量の最小取引単位と、前記電力系統への売電のために確保している電力量の総和と、に基づいて、前記充放電装置での前記放電を行う時間を決定する、V2Gシステム。 - 請求項1又は2に記載のV2Gシステムであって、
前記サーバ装置は、前記電力の需給予測結果と、前記充放電装置の前記電力系統に対する貢献度と、前記蓄電器に与える劣化影響度から導出された前記蓄電器を充電する時間帯の充電好適度と、に基づいて、前記貢献度が高いほど前記充電好適度の高い時間帯で前記蓄電器が充電されるよう、前記充放電装置での前記充電を行う時間を決定する、V2Gシステム。 - 請求項1から3のいずれか1項に記載のV2Gシステムであって、
前記充放電装置の前記制御部は、前記蓄電器の蓄電量が所定量以上であれば、前記指令が示す前記放電の開始時刻よりも所定時間早い時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する、V2Gシステム。 - 請求項1から3のいずれか1項に記載のV2Gシステムであって、
前記制御部は、予め設定された前記蓄電器から前記電力系統への放電の積極度合が所定以上であれば、前記指令が示す前記放電の開始時刻よりも所定時間早い時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する、V2Gシステム。 - 請求項1から3のいずれか1項に記載のV2Gシステムであって、
前記制御部は、前記蓄電器の蓄電量が所定量以上であれば、前記指令が示す前記放電の開始時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻よりも所定時間遅い時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する、V2Gシステム。 - 請求項1から3のいずれか1項に記載のV2Gシステムであって、
前記制御部は、予め設定された前記蓄電器から前記電力系統への放電の積極度合が所定以上であれば、前記指令が示す前記放電の開始時刻から前記放電を開始し、前記指令が示す前記放電の終了時刻よりも所定時間遅い時刻まで前記放電を行うよう、前記電力変換部の作動を制御し、
前記サーバ装置は、前記充放電装置毎の前記電力系統に対する貢献度を管理し、前記指令が示す前記放電を行う時間よりも長く放電した前記蓄電器を有する前記充放電装置に対して前記貢献度を高く設定する、V2Gシステム。 - 電力系統と、
輸送機器に設けられた蓄電器と、前記蓄電器と前記電力系統の間で授受される電力の変換を行う電力変換部と、外部からの信号を受信する受信部と、前記受信部が受信した信号に応じて前記電力変換部の作動を制御する制御部と、を有する充放電装置と、
前記充放電装置における前記蓄電器の充放電を管理するサーバ装置と、を備えたV2Gシステムにおける、前記蓄電器の充放電制御方法であって、
前記サーバ装置は、電力供給家が前記電力系統に供給する電力量及び前記電力系統から電力需要家に供給される電力量の時系列分析を行って、前記電力系統における電力の需給予測を行った結果と、前記電力系統との電力の授受の際に前記サーバ装置が管理している電力量の最小取引単位と、に基づいて、前記充放電装置における前記蓄電器から前記電力系統への放電又は前記電力系統から供給される電力による前記蓄電器の充電を行う時間を決定し、前記放電又は前記充電を行う時間を含む指令を前記充放電装置に送信し、
前記充放電装置では、前記サーバ装置から送信され前記受信部が受信した前記指令が示す時間に基づいて前記制御部が起動又は休止する、充放電制御方法。
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DE112015006711T5 (de) | 2018-04-05 |
JP6402256B2 (ja) | 2018-10-10 |
CN107851998A (zh) | 2018-03-27 |
CN107851998B (zh) | 2021-03-12 |
JPWO2017009978A1 (ja) | 2018-03-22 |
DE112015006711B4 (de) | 2024-05-08 |
US20180186246A1 (en) | 2018-07-05 |
US10414283B2 (en) | 2019-09-17 |
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