WO2013129499A1 - 制御装置、制御システム及び蓄電池制御方法 - Google Patents
制御装置、制御システム及び蓄電池制御方法 Download PDFInfo
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- WO2013129499A1 WO2013129499A1 PCT/JP2013/055195 JP2013055195W WO2013129499A1 WO 2013129499 A1 WO2013129499 A1 WO 2013129499A1 JP 2013055195 W JP2013055195 W JP 2013055195W WO 2013129499 A1 WO2013129499 A1 WO 2013129499A1
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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
- H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0025—Sequential battery discharge in systems with a plurality of batteries
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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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
- H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
- H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
- H02J2310/62—The condition being non-electrical, e.g. temperature
- H02J2310/64—The condition being economic, e.g. tariff based load management
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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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
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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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
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
- Y04S50/10—Energy trading, including energy flowing from end-user application to grid
Definitions
- the present invention relates to a control device, a control system, and a storage battery control method for controlling a plurality of storage batteries provided in a power consumer.
- HEMS residential energy management system
- Patent Document 1 a technique for distributing a plurality of storage batteries in a house has been proposed (for example, see Patent Document 1).
- an object of the present invention is to provide a control device, a control system, and a storage battery control method that can efficiently control a plurality of storage batteries provided in a consumer.
- the present invention has the following features.
- the control device of the present invention is a control device that controls a plurality of storage batteries provided in a power consumer, the acquisition unit acquiring information on the type and / or deterioration degree of each of the plurality of storage batteries, and the plurality And a charge / discharge control unit that controls charge / discharge of each of the plurality of storage batteries based on the information on the type and / or the degree of deterioration of each of the storage batteries.
- the acquisition unit may acquire information on the type and / or the degree of deterioration of the predetermined storage battery by communicating with a predetermined storage battery included in the plurality of storage batteries.
- the acquisition unit may acquire information on the type and / or deterioration level of the predetermined storage battery by measuring charge / discharge characteristics of the predetermined storage battery included in the plurality of storage batteries.
- the acquisition unit acquires information on the type and / or deterioration level of the predetermined storage battery by comparing charge / discharge characteristics of the predetermined storage battery with a charge / discharge pattern for each type and / or deterioration level. May be.
- the charge / discharge control unit may change each of the plurality of storage batteries to each of the plurality of power supplies based on the type and / or deterioration degree information of each of the plurality of storage batteries. And may be controlled in association with each other.
- the charge / discharge control unit distributes the storage battery of a type suitable for auxiliary charging to the distributed Control may be performed in association with the mold power source.
- the charge / discharge control unit converts the storage battery of a type not suitable for supplementary charging to the system power supply. And may be controlled in association with each other.
- the charge / discharge control unit may determine the association between each of the plurality of storage batteries and each of the plurality of power supplies for each time period.
- the charge / discharge control unit may set the priority of charge / discharge of each of the plurality of storage batteries based on the information on the degree of deterioration of each of the plurality of storage batteries.
- the charge / discharge control unit performs discharge of the storage battery of a type not suitable for auxiliary charging.
- the discharge of the storage battery of the type not suitable for the auxiliary charge may be preferentially performed over the discharge of the storage battery of the type suitable for the auxiliary charge.
- the control system of the present invention is a control system that controls a plurality of storage batteries provided in a power consumer, an acquisition unit that acquires information on the type and / or degree of deterioration of each of the plurality of storage batteries, and the plurality And a charge / discharge control unit that controls charge / discharge of each of the plurality of storage batteries based on the information on the type and / or the degree of deterioration of each of the storage batteries.
- the power control method of the present invention is a storage battery control method applied to a control system for controlling a plurality of storage batteries provided in a power consumer, and information on the type and / or deterioration level of each of the plurality of storage batteries. Step A to be acquired and Step B for controlling charging / discharging of each of the plurality of storage batteries based on information on the type and / or degree of deterioration of each of the plurality of storage batteries.
- control device it is possible to provide a control device, a control system, and a storage battery control method that can efficiently control a plurality of storage batteries provided in a consumer.
- FIG. 1 is a block diagram of a control system according to the embodiment.
- FIG. 2 is a block diagram of the HEMS according to the embodiment.
- FIG. 3 shows an example of storage battery information according to the embodiment.
- FIG. 4 is an operation flowchart of the storage battery information acquisition operation in the HEMS according to the embodiment.
- FIG. 5 is an operation flowchart of charge / discharge control operation in the HEMS according to the embodiment.
- FIG. 6 is a diagram for explaining a specific example of the charge / discharge schedule according to the embodiment.
- FIG. 1 is a block diagram of a control system according to this embodiment.
- the solid line between blocks shows a power line
- the broken line between blocks shows a control line.
- the control line may be wireless.
- the control system includes a system power supply 1, a plurality of storage batteries 10, a distributed power supply 20, one or a plurality of load devices 30, a distribution board 40, and a HEMS 100.
- the some storage battery 10 comprises a storage battery group.
- the storage battery 10, the distributed power supply 20, the load device 30, the distribution board 40, and the HEMS 100 are provided in a house H as a consumer who receives power supply from the system power supply 1.
- the system power supply 1 is an example of a power supply.
- the system power supply 1 is managed by an electric power company and supplies electric power to the house H.
- the system power supply 1 can always supply stable power to the house H unless a power failure occurs.
- the charge of power supplied from the system power supply 1 to the house H is set at a lower price than in other time zones at midnight when the power demand is low.
- the storage battery 10 is charged by electric power input via the distribution board 40.
- the storage battery 10 supplies power to the load device 30 via the distribution board 40 by discharging.
- Each charging / discharging of the storage battery 10 is controlled by the HEMS 100.
- the storage batteries 10 are not unified with the same type of storage battery, and different types of storage batteries are mixed.
- the storage battery 10-1 is a type of storage battery suitable for auxiliary charging
- the storage battery 10-2 is a type of storage battery not suitable for auxiliary charging.
- a storage battery of a type suitable for supplementary charging is a storage battery in which even if charging (so-called “additional charging”) is performed before the stored power is completely discharged, performance degradation due to the memory effect or the like hardly occurs.
- Examples of such a storage battery include a lithium ion battery.
- a storage battery of a type that is not suitable for supplementary charging is a storage battery that is liable to deteriorate in performance due to the memory effect or the like when additional charging is performed.
- Examples of such a storage battery include a nickel cadmium battery, a nickel hydrogen battery, and a lead storage battery.
- the storage battery 10 may have a function of managing information about itself (for example, type, number of days used, capacity, number of times of charging, and number of times of discharging).
- the distributed power source 20 is an example of a power source.
- the distributed power source 20 refers to a power generator that supplies power to the load device 30 and / or the storage battery 10 via the distribution board 40 by generating power.
- the distributed power source 20 may be a type of distributed power source that can control the amount of power generation, or may be a type of distributed power source that cannot control the amount of power generation.
- a “distributed power source of a type that can control the amount of power generation” is a distributed power source that generates power using gas or the like, for example, a fuel such as SOFC (Solid Oxide Fuel Cell) or PEFC (Polymer Electrolyte Fuel Cell). Includes batteries and gas turbine generators.
- SOFC Solid Oxide Fuel Cell
- PEFC Polymer Electrolyte Fuel Cell
- a distributed power source of a type whose power generation amount cannot be controlled is a distributed power source that generates power using natural energy (renewable energy), and includes, for example, a solar cell and a wind power generator. .
- a distributed power source can cause the generated power to flow backward (so-called power sale) to the system power source 1.
- load following control cannot be applied to such a distributed power source.
- the load device 30 operates by consuming electric power input via the distribution board 40.
- the load device 30 is, for example, a home appliance (such as a refrigerator, an air conditioner, and a lighting device) provided in the house H.
- Distribution board 40 supplies power from system power supply 1 to load device 30 and storage battery 10.
- the distribution board 40 supplies power from the storage battery 10 to the load device 30 or supplies power from the distributed power source 20 to the load device 30 and the storage battery 10. Further, when the distributed power source 20 is a distributed power source that generates power using natural energy (renewable energy), the distribution board 40 reverses the power generated by the distributed power source 20 to the system power source 1. You may let them.
- the distribution board 40 changes the internal connection state according to the control of the HEMS 100.
- the distribution board 40 can electrically connect / disconnect any storage battery 10 to / from the distributed power source 20, or electrically connect / disconnect any storage battery 10 to / from the system power supply 1. .
- the distribution board 40 includes a sensor 41 for measuring various kinds of electric power.
- the distribution board 40 notifies the HEMS 100 of power information detected by the sensor 41.
- the sensor 41 detects, for example, the amount of power purchased from the system power source 1, the amount of power sold to the system power source 1, the amount of power generated by the distributed power source 20, and the amount of charge / discharge power of the storage battery 10.
- the HEMS 100 communicates with each of the storage battery 10, the distributed power source 20, the load device 30, and the distribution board 40 to control each of the storage battery 10, the distributed power source 20, the load device 30, and the distribution board 40.
- the HEMS 100 will be described.
- FIG. 2 is a block diagram of the HEMS 100.
- the HEMS 100 includes a display unit 110, an input unit 120, a communication unit 130, a storage unit 140, and a control unit 150.
- the display unit 110 performs various displays under the control of the control unit 150.
- the input unit 120 receives input from the user and outputs the input content to the control unit 150.
- the display unit 110 and the input unit 120 may be integrated as a touch panel.
- the communication unit 130 communicates with each device (the storage battery 10, the distributed power source 20, the load device 30, and the distribution board 40) provided in the house H under the control of the control unit 150.
- the communication unit 130 may be a Zigbee (registered trademark) module for performing wireless communication with each device provided in the house H.
- the storage unit 140 stores various information used for control by the control unit 150.
- the storage unit 140 stores information related to the storage battery 10 (hereinafter referred to as “storage battery information”).
- the storage battery information includes information on the type (for example, lithium ion or lead) of the storage battery 10. Further, the storage battery information may include information on the degree of deterioration of the storage battery 10 (for example, the number of days used, the number of times of charging, and the number of times of discharging). Furthermore, the storage battery information may include information on the capacity of the storage battery 10.
- FIG. 3 shows an example of storage battery information stored in the storage unit 140.
- the type “lithium ion”, the number of use days “150 days”, the capacity “2 kWh”, the charge count “100 times”, and the discharge count “120 times” are stored. ing. These pieces of information are similarly stored for other storage batteries.
- the control unit 150 includes an information acquisition unit 151, an information management unit 152, a schedule determination unit 153, and a storage battery control unit 154.
- the information acquisition unit 151 acquires storage battery information of the storage battery 10 using the communication unit 130.
- the information acquisition unit 151 acquires storage battery information of the newly installed storage battery 10 and stores the acquired storage battery information in the storage unit 140.
- the information acquisition unit 151 acquires the storage battery information of the newly installed storage battery 10 by communicating with the newly installed storage battery 10 using the communication unit 130.
- the storage battery 10 may transmit its storage battery information to the information acquisition unit 151 in a format compliant with a communication protocol such as Echonet Lite.
- the information acquisition unit 151 may further request the storage battery 10 to transmit necessary storage battery information after receiving the storage battery information from the storage battery 10. In this case, it is assumed that the newly installed storage battery 10 manages its own storage battery information.
- the information acquisition unit 151 uses the communication unit 130 to measure the charge / discharge characteristics of the newly installed storage battery 10, thereby The storage battery information of the newly installed storage battery 10 is acquired. For example, the information acquisition unit 151 periodically acquires charge / discharge power detected by the sensor 41 while instructing charge / discharge to the newly installed storage battery 10 using the communication unit 130. The charge / discharge characteristics of the newly installed storage battery 10 are measured. The storage unit 140 stores in advance a charge / discharge characteristic pattern for each type of storage battery, and the information acquisition unit 151 compares the charge / discharge characteristic measured for the storage battery 10 with each charge / discharge characteristic pattern. The type of the storage battery 10 is estimated. Furthermore, if each charge / discharge characteristic pattern is classified according to the degree of deterioration, the degree of deterioration of the storage battery 10 can also be estimated.
- the information management unit 152 manages storage battery information (see FIG. 3) for each storage battery 10 stored in the storage unit 140. For example, for each storage battery 10, the information management unit 152 updates the number of days of use according to the passage of days, updates the number of times of charging according to the execution of charging, and updates the number of times of discharging according to the execution of discharging.
- the schedule determination unit 153 is based on the storage battery information managed by the information management unit 152, and the charge / discharge schedule of each storage battery 10 (hereinafter simply referred to as “schedule” as appropriate) every predetermined period (for example, one day). To decide.
- the charge / discharge schedule means a schedule of which storage battery 10 performs charge / discharge in which time zone and in which mode. The charging / discharging mode of the storage battery 10 will be described later.
- the schedule determination unit 153 associates each of the plurality of storage batteries 10 with each of a plurality of power sources (the system power source 1 and the distributed power source 20) based on the storage battery information of each storage battery 10, and schedules them. To decide.
- the schedule determination unit 153 determines the schedule by associating the storage battery 10 of a type suitable for supplementary charging with the distributed power source 20. As described above, the distributed power source 20 can frequently generate excess or deficiency of generated power. Therefore, the schedule determination unit 153 determines the schedule so that the storage battery 10 of a type suitable for auxiliary charging is associated with the distributed power source 20 and the excess or deficiency is offset. As a result, the amount of power purchased from the system power source 1 can be reduced, or the amount of power sold to the system power source 1 can be increased.
- the schedule determination unit 153 determines the schedule by associating the storage battery 10 of a type not suitable for auxiliary charging with the system power supply 1.
- the system power supply 1 can basically always supply stable power. Therefore, the schedule determination unit 153 associates the storage battery 10 of a type that is not suitable for auxiliary charging with the system power supply 1, and discharges all power from the storage battery 10 after the storage battery 10 is fully charged. Determine the schedule.
- the storage battery 10 can be fully charged with inexpensive system power at midnight, and all the power can be discharged from the storage battery 10 in other time zones.
- the schedule determination unit 153 sets the priority of charge / discharge for each storage battery 10 according to the degree of deterioration of each storage battery 10 (for example, the number of days used, the number of times of charging, and the number of times of discharging). For example, when there are a plurality of storage batteries 10 of the same type, the priority for the storage battery 10 with a low degree of deterioration is “high” (main), and the priority for the storage battery 10 with a high degree of deterioration is “low” (backup). To do. As a result, the degree of deterioration of these storage batteries 10 can be leveled, and the life of the storage battery group can be extended.
- the degree of deterioration of each storage battery 10 for example, the number of days used, the number of times of charging, and the number of times of discharging.
- the priority for the storage battery 10 with a low degree of deterioration is “low” (backup), and the priority for the storage battery 10 with a high degree of deterioration is “high” (main).
- the deteriorated storage battery 10 can be used up and replaced at an early stage, and the performance of the storage battery group can be improved.
- the storage battery control unit 154 controls each storage battery 10 according to the schedule determined by the schedule determination unit 153. Specifically, the storage battery control unit 154 transmits a charge / discharge instruction to each storage battery 10 or transmits a connection state change instruction to the distribution board 40 using the communication unit 130. Various instructions are transmitted using a signal conforming to a communication protocol such as Lite or ZigBee.
- the storage battery control unit 154 may appropriately change the schedule when the schedule needs to be changed according to the amount of power stored in the storage battery 10 and the power consumption of the load device 30.
- the storage battery control unit 154 may control the display unit 110 to display charge / discharge schedule information (see FIG. 4). Further, the schedule may be changed according to user input to the input unit 120.
- FIG. 4 is an operation flowchart of the storage battery information acquisition operation in the HEMS 100.
- step S11 the information acquisition unit 151 confirms whether or not the storage battery 10 newly installed in the house H has been detected.
- the process proceeds to step S12.
- step S12 the information acquisition unit 151 checks whether or not the storage battery information can be acquired from the newly installed storage battery 10, that is, whether or not the storage battery 10 manages its own storage battery information.
- step S12; YES the process proceeds to step S13.
- step S12; NO the process proceeds to step S14.
- step S13 the information acquisition unit 151 acquires storage battery information from the newly installed storage battery 10, and stores the acquired storage battery information in the storage unit 140.
- step S14 the information acquisition unit 151 measures the charge / discharge characteristics of the newly installed storage battery 10.
- step S15 the information acquisition unit 151 acquires the storage battery information of the newly installed storage battery 10 based on the charge / discharge characteristics measured in step S14, and stores the acquired storage battery information in the storage unit 140.
- FIG. 5 is an operation flowchart of the charge / discharge control operation in the HEMS 100. This operation flow assumes a case where a schedule is determined on a daily basis, for example.
- step S21 the schedule determination unit 153 confirms whether or not the current time is a time at which the schedule should be determined. If the current time is the time at which the schedule should be determined (step S21; YES), the process proceeds to step S22.
- step S ⁇ b> 22 the schedule determination unit 153 determines a schedule for each storage battery 10 based on storage battery information for each storage battery 10 stored in the storage unit 140 for each time zone in a day. A specific example of the schedule will be described later.
- step S23 the storage battery control unit 154 controls each storage battery 10 according to the schedule of the day.
- step S24 the storage battery control unit 154 confirms whether or not the schedule for the day has been completed. If the schedule for that day has not been completed (step S24; NO), the process proceeds to step S25.
- step S25 the storage battery control unit 154 confirms whether or not the schedule of the day needs to be changed. If it is not necessary to change the schedule for that day (step S25; NO), the process returns to step S23. On the other hand, when the schedule of the day needs to be changed (step S25; YES), the process proceeds to step S26.
- step S26 the storage battery control unit 154 changes the schedule of the day. Thereafter, the process returns to step S23.
- FIG. 6 is a diagram for explaining a specific example of a schedule.
- a lithium ion battery is illustrated as a type of storage battery 10 suitable for auxiliary charging
- a lead storage battery is illustrated as a type of storage battery 10 not suitable for auxiliary charging.
- the case where the lithium ion battery A with a low deterioration degree and the lithium ion battery B with a high deterioration degree coexist is assumed.
- the schedule determination unit 153 determines the schedule by associating the lithium ion battery A with the distributed power source 20.
- the schedule determination unit 153 cancels the excess or deficiency of the power generation amount of the distributed power source 20 in the lithium-ion battery A except during a time period (midnight time period) when the power consumption of the load device 30 is small. (Offset mode).
- the storage battery control unit 154 controls the discharge of the power corresponding to the shortage from the lithium ion battery A when the power generation amount of the distributed power source 20 is insufficient with respect to the power consumption of the load device 30. To do. Further, in the cancellation mode, when the power generation amount of the distributed power source 20 exceeds the power consumption of the load device 30, the storage battery control unit 154 charges the lithium ion battery A with power corresponding to the excess amount. Control as follows. Here, the storage battery control unit 154 grasps the difference between the power generation amount of the distributed power source 20 and the power consumption amount of the load device 30 from the measurement value of the sensor 41, for example, and controls charging / discharging of the lithium ion battery A.
- the schedule determination unit 153 determines that the lithium ion battery A is operated in a mode (charging mode) in which the lithium ion battery A is charged with system power during a time period (midnight time period) in which the power consumption of the load device 30 is small. .
- the storage battery control unit 154 controls the lithium-ion battery A to be charged with inexpensive system power at midnight. However, if the lithium ion battery A is fully charged at the end of the canceling mode, the charging mode may be stopped.
- the schedule determination unit 153 determines the schedule by associating the lead storage battery with the system power supply 1.
- the schedule determination unit 153 is determined to operate in a mode (charging mode) in which the lead storage battery is charged to a fully charged state by system power in a time period (midnight time period) in which the power consumption of the load device 30 is small. However, it is determined to operate in a mode (discharge mode) in which all electric power is discharged from the lead storage battery in other time zones.
- the storage battery control unit 154 controls to charge the lead storage battery with inexpensive system power at midnight.
- the storage battery control unit 154 discharges the power corresponding to the shortage from the lead storage battery. Control as follows. In the case where both the lithium ion battery A and the lead storage battery can be discharged, it is preferable that the lead storage battery is discharged preferentially in order to reduce the storage amount of the lead storage battery to zero.
- the schedule determination unit 153 determines the schedule by associating the lithium ion battery B with the distributed power source 20.
- the schedule determination unit 153 is in a mode (backup mode) in which the priority for the lithium ion battery B is “low” (backup) because the deterioration degree of the lithium ion battery B is high.
- the storage battery control unit 154 controls to use the lithium ion battery B as a backup for the lithium ion battery A. For example, the storage battery control unit 154 controls the lithium ion battery B to be charged instead of the lithium ion battery A after the lithium ion battery A is fully charged. In addition, when the storage amount of the lithium ion battery A falls below a predetermined lower limit value, or when an abnormality occurs in the lithium ion battery A, the storage battery control unit 154 does not use the lithium ion battery A but the lithium ion battery A. B may be changed to operate in the cancellation mode.
- the HEMS 100 that controls the plurality of storage batteries 10 provided in the house controls charging / discharging for each of the plurality of storage batteries 10 based on the storage battery information of each of the plurality of storage batteries 10. Thereby, the some storage battery 10 can be controlled efficiently.
- the HEMS 100 acquires the storage battery information of the newly installed storage battery 10 by communicating with the newly installed storage battery 10.
- the HEMS 100 acquires the storage battery information of the newly installed storage battery 10 by measuring the charge / discharge characteristics of the newly installed storage battery 10. Thereby, HEMS100 can acquire storage battery information automatically.
- the HEMS 100 controls the storage battery 10 of a type suitable for auxiliary charging in association with the distributed power source 20.
- excess and deficiency of the generated power of the distributed power source 20 can be offset.
- the amount of power purchased from the system power source 1 can be reduced, or the amount of power sold to the system power source 1 can be increased.
- the HEMS 100 controls the storage battery 10 of a type that is not suitable for auxiliary charging in association with the system power supply 1.
- the said storage battery 10 can be made into a full charge state with the cheap system electric power of midnight, and all the electric power can be discharged from the said storage battery 10 in the time zone other than that.
- the electricity bill in the house H can be reduced.
- the HEMS 100 determines the correspondence between each of the plurality of storage batteries 10 and each of the plurality of power supplies for each time period. Thereby, the some storage battery 10 can be efficiently controlled in consideration of an electricity bill and power consumption.
- HEMS100 sets the priority of charging / discharging for every some storage battery 10 based on the information of the deterioration degree of each of the some storage battery 10.
- FIG. Thereby, the deterioration degree of a storage battery group can be leveled, or the performance improvement of a storage battery group can be aimed at.
- a storage battery mounted on an electric vehicle can be regarded as one storage battery constituting a storage battery group when the electric vehicle is not used.
- the storage battery control unit 154 controls the storage battery 10 to be charged with inexpensive system power at midnight.
- the storage battery control unit 154 may control the storage battery 10 to charge the generated power of the distributed power source 20.
- the HEMS 100 which is a control device for performing power management in units of houses, has been described.
- BEMS Building Energy Management System
- FEMS Fractory Energy Management
- CEMS Common Energy Management System
- control device it is possible to provide a control device, a control system, and a storage battery control method that can efficiently control a plurality of storage batteries provided in a consumer.
Abstract
Description
図1は、本実施形態に係る制御システムのブロック図である。図1において、ブロック間の実線は電力ラインを示し、ブロック間の破線は制御ラインを示す。なお、制御ラインは無線としてもよい。
図2は、HEMS100のブロック図である。
以下において、HEMS100の動作を説明する。
図4は、HEMS100における蓄電池情報取得動作の動作フロー図である。
図5は、HEMS100における充放電制御動作の動作フロー図である。本動作フローは、例えば1日単位でスケジュールを決定するようなケースを想定している。
以上説明したように、住宅に設けられる複数の蓄電池10を制御するHEMS100は、複数の蓄電池10それぞれの蓄電池情報に基づいて、複数の蓄電池10毎に充放電を制御する。これにより、複数の蓄電池10を効率的に制御できる。
上記のように、本発明は実施形態によって記載したが、この開示の一部をなす論述及び図面はこの発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施形態、実施例及び運用技術が明らかとなる。
Claims (12)
- 電力の需要家に設けられる複数の蓄電池を制御する制御装置であって、
前記複数の蓄電池のそれぞれの種別及び/又は劣化度の情報を取得する取得部と、
前記複数の蓄電池のそれぞれの前記種別及び/又は劣化度の情報に基づいて、前記複数の蓄電池のそれぞれの充放電を制御する充放電制御部と、
を有することを特徴とする制御装置。 - 前記取得部は、前記複数の蓄電池に含まれる所定の蓄電池との通信を行うことによって、前記所定の蓄電池の前記種別及び/又は劣化度の情報を取得することを特徴とする請求項1に記載の制御装置。
- 前記取得部は、前記複数の蓄電池に含まれる所定の蓄電池の充放電特性を計測することによって、前記所定の蓄電池の前記種別及び/又は劣化度の情報を取得することを特徴とする請求項1に記載の制御装置。
- 前記取得部は、前記所定の蓄電池の充放電特性を、前記種別及び/又は劣化度毎の充放電パターンと比較することによって、前記所定の蓄電池の前記種別及び/又は劣化度の情報を取得することを特徴とする請求項3に記載の制御装置。
- 複数の電源が利用可能である場合において、前記充放電制御部は、前記複数の蓄電池のそれぞれの前記種別及び/又は劣化度の情報に基づいて、前記複数の蓄電池のそれぞれを前記複数の電源のそれぞれと対応付けて制御することを特徴とする請求項1に記載の制御装置。
- 前記複数の電源が分散型電源を含み、かつ、前記複数の蓄電池が補充電に適した種別の蓄電池を含む場合において、前記充放電制御部は、前記補充電に適した種別の蓄電池を前記分散型電源と対応付けて制御することを特徴とする請求項4に記載の制御装置。
- 前記複数の電源が系統電源を含み、かつ、前記複数の蓄電池が補充電に適さない種別の蓄電池を含む場合において、前記充放電制御部は、前記補充電に適さない種別の蓄電池を前記系統電源と対応付けて制御することを特徴とする請求項4に記載の制御装置。
- 前記充放電制御部は、前記複数の蓄電池のそれぞれと前記複数の電源のそれぞれとの対応付けを、時間帯別に決定することを特徴とする請求項4に記載の制御装置。
- 前記充放電制御部は、前記複数の蓄電池それぞれの前記劣化度の情報に基づいて、前記複数の蓄電池毎に充放電の優先度を設定することを特徴とする請求項1に記載の制御装置。
- 前記複数の蓄電池が補充電に適した種別の蓄電池及び補充電に適さない種別の蓄電池を含む場合において、前記充放電制御部は、前記補充電に適さない種別の蓄電池の放電を行う場合に、前記補充電に適さない種別の蓄電池の放電を前記補充電に適した種別の蓄電池の放電よりも優先的に行うことを特徴とする請求項1に記載の制御装置。
- 電力の需要家に設けられる複数の蓄電池を制御する制御システムであって、
前記複数の蓄電池のそれぞれの種別及び/又は劣化度の情報を取得する取得部と、
前記複数の蓄電池のそれぞれの前記種別及び/又は劣化度の情報に基づいて、前記複数の蓄電池のそれぞれの充放電を制御する充放電制御部と、
を有することを特徴とする制御システム。 - 電力の需要家に設けられる複数の蓄電池を制御する制御システムに適用される蓄電池制御方法であって、
前記複数の蓄電池のそれぞれの種別及び/又は劣化度の情報を取得するステップAと、
前記複数の蓄電池のそれぞれの前記種別及び/又は劣化度の情報に基づいて、前記複数の蓄電池のそれぞれの充放電を制御するステップBと、
を有することを特徴とする蓄電池制御方法。
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US20150171641A1 (en) | 2015-06-18 |
US9735591B2 (en) | 2017-08-15 |
EP2822138B1 (en) | 2018-11-07 |
JPWO2013129499A1 (ja) | 2015-07-30 |
EP2822138A1 (en) | 2015-01-07 |
EP2822138A4 (en) | 2015-12-02 |
JP5890513B2 (ja) | 2016-03-22 |
JP2016123267A (ja) | 2016-07-07 |
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