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WO2018139604A1 - Procédé de commande d'alimentation électrique, dispositif d'alimentation électrique, et système de commande d'alimentation électrique - Google Patents

Procédé de commande d'alimentation électrique, dispositif d'alimentation électrique, et système de commande d'alimentation électrique Download PDF

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Publication number
WO2018139604A1
WO2018139604A1 PCT/JP2018/002560 JP2018002560W WO2018139604A1 WO 2018139604 A1 WO2018139604 A1 WO 2018139604A1 JP 2018002560 W JP2018002560 W JP 2018002560W WO 2018139604 A1 WO2018139604 A1 WO 2018139604A1
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WO
WIPO (PCT)
Prior art keywords
power
power demand
storage battery
pattern
demand pattern
Prior art date
Application number
PCT/JP2018/002560
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English (en)
Japanese (ja)
Inventor
竜也 卯花
Original Assignee
京セラ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京セラ株式会社 filed Critical 京セラ株式会社
Priority to JP2018564663A priority Critical patent/JP6781274B2/ja
Publication of WO2018139604A1 publication Critical patent/WO2018139604A1/fr

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Classifications

    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • 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
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • This disclosure relates to a power control method, a power control device, and a power control system.
  • control for reducing the peak value of purchased power in a predetermined time (for example, 30 minutes) by performing a discharging operation of a storage battery device is known (for example, Patent Document 1).
  • the charging operation and the discharging operation of the storage battery device are determined based on the estimation result of the power demand.
  • the power control method includes a first distributed power source having a first priority as a cost priority, and a second distributed power source having a second priority lower than the first priority as the cost priority. And a method used in a facility having a storage battery device having a third priority lower than the second priority as the cost priority.
  • the power control method indicates information indicating an appropriate time zone as a time zone for performing the charging operation of the storage battery device and an appropriate power source as a power source used for the charging operation of the storage battery device for each of two or more power demand patterns.
  • Step A for managing information, and a power demand pattern corresponding to the facility is identified from the two or more power demand patterns, and is identified in the appropriate time zone managed for the identified power demand pattern Step B of performing the charging operation of the storage battery device using the appropriate power source managed for the power demand pattern.
  • the power supply control device includes a first distributed power source having a first priority as a cost priority, a second distributed power source having a second priority lower than the first priority as the cost priority, and It is an apparatus used in a facility having a storage battery device having a third priority lower than the second priority as the cost priority.
  • the power supply control device indicates information indicating an appropriate time zone as a time zone for performing the charging operation of the storage battery device and an appropriate power source as a power source used for the charging operation of the storage battery device for each of two or more power demand patterns.
  • a management unit that manages information; and a power demand pattern corresponding to the facility is identified from the two or more power demand patterns, and is identified in the appropriate time zone managed for the identified power demand pattern
  • a power supply control system includes a first distributed power supply having a first priority as a cost priority and a second distributed power supply having a second priority lower than the first priority as the cost priority. And a storage battery device having a third priority lower than the second priority as the cost priority, and a power control device for controlling at least the storage battery device.
  • the power supply control device indicates information indicating an appropriate time zone as a time zone for performing the charging operation of the storage battery device and an appropriate power source as a power source used for the charging operation of the storage battery device for each of two or more power demand patterns. Manage information.
  • the power control device identifies a power demand pattern corresponding to the facility from the two or more power demand patterns, and identifies the power demand identified in the appropriate time zone managed for the identified power demand pattern The storage battery device is charged using the appropriate power source managed for the pattern.
  • FIG. 1 is a diagram illustrating a power supply control system 100 according to an embodiment.
  • FIG. 2 is a diagram illustrating a facility 300 according to an embodiment.
  • FIG. 3 is a diagram illustrating a power management server 200 according to an embodiment.
  • FIG. 4 is a diagram illustrating the local control device 360 according to an embodiment.
  • FIG. 5 is a diagram for explaining a power demand pattern according to an embodiment.
  • FIG. 6 is a diagram for explaining a power demand pattern according to an embodiment.
  • FIG. 7 is a diagram for explaining a power demand pattern according to an embodiment.
  • FIG. 8 is a diagram for explaining a power demand pattern according to an embodiment.
  • FIG. 9 is a diagram for explaining a power demand pattern according to an embodiment.
  • FIG. 10 is a diagram illustrating a power control method according to an embodiment.
  • the present disclosure provides a power supply control method, a power supply control apparatus, and a power supply control system that enable an appropriate power supply to be selected as a power supply used for a charging operation of a storage battery device by a simple method.
  • the power supply control system 100 includes a power management server 200 and a facility 300.
  • a facility 300A to a facility 300C are illustrated.
  • Each facility 300 is connected to the power system 110.
  • the flow of power from the power system 110 to the facility 300 is referred to as tidal current, and the flow of power from the facility 300 to the power system 110 is referred to as reverse power flow.
  • the power management server 200 and the facility 300 are connected to the network 120.
  • the network 120 may provide a line between the power management server 200 and the facility 300.
  • the network 120 is, for example, the Internet.
  • the network 120 may provide a dedicated line such as a VPN (Virtual Private Network).
  • the power management server 200 is a server managed by a business operator such as a power generation business, a power transmission / distribution business, or a retail business.
  • the power management server 200 transmits, to the local control device 360 provided in the facility 300, a control message instructing control of a distributed power source (for example, a solar cell device, a storage battery device, and a fuel cell device) provided in the facility 300.
  • a distributed power source for example, a solar cell device, a storage battery device, and a fuel cell device
  • the power management server 200 may transmit a power flow control message (for example, DR; Demand Response) that requests control of power flow, or may transmit a reverse power flow control message that requests control of reverse power flow.
  • the power management server 200 may transmit a power control message for controlling the operating state of the distributed power.
  • the degree of control of the tidal current or the reverse tidal current may be represented by an absolute value (for example, OO kW) or a relative value (for example, OO%).
  • control degree of a tidal current or a reverse tidal current may be represented by two or more levels.
  • the degree of control of the tidal current or reverse power flow may be represented by a power rate (RTP: Real Time Pricing) determined by the current power supply / demand balance, or a power rate (TOU: Time Of Use) determined by the past power supply / demand balance May be represented by
  • the facility 300 includes a router 500 as shown in FIG.
  • the router 500 is connected to the power management server 200 via the network 120.
  • the router 500 forms a local area network and is connected to each device (for example, a power meter 321, a PCS 331, a PCS 332, a PCS 333 load 350, a local control device 360, and the like).
  • a solid line indicates a power line
  • a dotted line indicates a signal line.
  • the embodiment is not limited to this, and a signal may be transmitted through a power line.
  • the facility 300 includes a solar cell 311, a storage battery 312, a fuel cell 313, a hot water supply device 314, a power meter 321, a PCS 331, a PCS 332, a PCS 333, a distribution board 340, a load 350, and a local control device. 360.
  • the solar cell 311 is a device that generates power in response to light reception.
  • the solar cell 311 outputs the generated DC power.
  • the amount of power generated by the solar cell 311 changes according to the amount of solar radiation applied to the solar cell 311.
  • the storage battery 312 is a device that stores electric power.
  • the storage battery 312 outputs the accumulated DC power.
  • the storage battery 312 may be a power source used for VPP (Virtual Power Plant).
  • the fuel cell 313 is a battery that generates electric power using fuel.
  • the fuel may be, for example, a material containing hydrogen or a material containing alcohol.
  • the fuel cell 313 includes, for example, a solid oxide fuel cell (hereinafter referred to as SOFC: Solid Oxide Fuel Cell), a solid polymer fuel cell (hereinafter referred to as PEFC: Polymer Electrolyte Fuel Cell), a phosphoric acid fuel cell (hereinafter referred to as PAFC). : Phosphoric Acid Fuel Cell) or Molten Carbonate Fuel Cell (hereinafter referred to as MCFC: Molten Carbonate Fuel Cell).
  • SOFC Solid Oxide Fuel Cell
  • PEFC Polymer Electrolyte Fuel Cell
  • PAFC phosphoric acid fuel cell
  • MCFC Molten Carbonate Fuel Cell
  • the hot water supply device 314 has a hot water storage tank, and uses the exhaust heat of the fuel cell 313 to maintain or increase the amount of water (hot water) stored in the hot water storage tank, or to store water in the hot water storage tank. Maintain or increase the temperature of (hot water). Such control may be referred to as boiling water stored in the hot water tank.
  • the wattmeter 321 is a wattmeter that measures the power (power demand) supplied from the power system 110 to the facility 300.
  • the wattmeter 321 may be a CT (Current Transformer) that measures current from the power system 110 to the facility 300.
  • the power demand is a value obtained by subtracting the output power of the distributed power source from the power consumption of the load 350.
  • the storage battery 312 may be considered as one of the loads 350.
  • the PCS 331 is a power conversion device (PCS; Power Conditioning System) connected to the solar cell 311.
  • the PCS 331 converts DC power from the solar cell 311 into AC power.
  • the PCS 331 may output the converted AC power to the first distribution board 340A.
  • the PCS 331 may output the converted AC power to the storage battery 312.
  • PCS 332 is a power conversion device connected to the storage battery 312.
  • the PCS 332 converts DC power from the storage battery 312 into AC power.
  • the PCS 332 outputs the converted AC power to the first distribution board 340A.
  • the PCS 332 converts AC power to the storage battery 312 into DC power.
  • the PCS 332 outputs the converted DC power to the storage battery 312.
  • PCS333 is a power converter connected to the fuel cell 313.
  • the PCS 333 converts DC power from the fuel cell 313 into AC power.
  • the PCS 333 may output the converted AC power to the first distribution board 340A.
  • the PCS 333 may output the converted AC power to the storage battery 312.
  • Distribution board 340 is connected to main power line 10L.
  • the distribution board 340 includes a first distribution board 340A and a second distribution board 340B.
  • the first distribution board 340A is connected to the power system 110 via the main power line 10LA.
  • the first distribution board 340A is connected to the solar cell 311 via the PCS 331, is connected to the storage battery 312 via the PCS 332, and is connected to the fuel cell 313 via the PCS 333.
  • the first distribution board 340 ⁇ / b> A may supply AC power supplied from the power system 110 to the storage battery 312 via the PCS 332.
  • the first distribution board 340A may supply the AC power supplied from the PCS 331 to the power system 110 via the main power line 10LA as a reverse power flow.
  • the first distribution board 340A may supply the AC power supplied from the PCS 332 to the power system 110 via the main power line 10LA as a reverse power flow.
  • the first distribution board 340A may supply the AC power supplied from the PCS 333 to the power system 110 via the main power line 10LA as a reverse power flow.
  • the first distribution board 340A supplies the power output from the PCS 331 to PCS 333 and the power supplied from the power system 110 to the second distribution board 340B via the main power line 10LB.
  • the second distribution board 340B distributes the power supplied via the main power line 10LB to each device.
  • Each device is, for example, a load 350, a local control device 360, and the like.
  • the load 350 is a device that consumes power supplied through the power line.
  • the load 350 includes devices such as an air conditioner, a lighting device, a refrigerator, and a television.
  • the load 350 may be a single device or may include a plurality of devices.
  • the local control device 360 is a device (EMS; Energy Management System) that manages power information indicating power in the facility 300.
  • the power in the facility 300 is the power flowing through the facility 300, the power purchased by the facility 300, or the power sold from the facility 300. Accordingly, the local control device 360 manages at least the PCS 331 to PCS 333.
  • the local control device 360 may manage the load 350. Further, when the load 350 includes a plurality of devices, the local control device 360 may manage some of the plurality of devices. In this case, the local control device 360 may manage a plurality of devices according to a predetermined priority order. Further, such a priority order may be determined by the local control device 360 based on the power consumption amount consumed by the load 350.
  • the solar cell 311 is an example of a first distributed power source having a first priority as a cost priority.
  • a single solar cell 311 may be referred to as a solar cell device, and the solar cell 311 and the PCS 331 may be referred to as a solar cell device.
  • the fuel cell 313 is an example of a second distributed power source having a second priority lower than the first priority as the cost priority.
  • the single fuel cell 313 may be referred to as a fuel cell device
  • the fuel cell 313 and the PCS 333 may be referred to as a fuel cell device
  • the fuel cell 313, the hot water supply device 314, and the PCS 333 may be referred to as a fuel cell device.
  • the storage battery 312 is an example of a third distributed power source having a third priority lower than the second priority as the cost priority.
  • the single storage battery 312 may be referred to as a storage battery device, and the storage battery 312 and the PCS 332 may be referred to as storage battery devices.
  • the power cost of the fuel cell 313 mainly depends on the charge of gas serving as fuel.
  • the power cost of the storage battery 312 mainly depends on the power charge when charging. For example, the power cost of the storage battery 312 is calculated based on the power charge when purchasing power from the power system 110. Moreover, if the storage battery 312 charges the generated electric power of the solar cell 311, the power cost can be further reduced. As described above, the power cost of the storage battery 312 varies depending on the power source (charging power source) used for the charging operation of the storage battery 312.
  • the storage battery 312 may have a higher cost priority than the fuel cell 313.
  • the solar cell 311 does not require fuel or the like during power generation, and therefore has a lower power cost and higher cost priority than the fuel cell 313 and the storage battery 312. Therefore, since the cost priority of the solar cell 311 is higher than the cost priority of the fuel cell 313, the cost priority of the storage battery 312 in the case where the power source used for charging is the solar cell 311 is that the power source used for charging is the fuel cell 313. It is higher than the cost priority of the storage battery 312 in a certain case.
  • the cost priority of the storage battery 312 in the case where the power source used for charging is the fuel cell 313 is that the power source used for charging is power. It becomes higher than the cost priority of the storage battery 312 in the case of the system 110.
  • communication between the power management server 200 and the local control device 360 is performed according to the first protocol.
  • communication between the local control device 360 and the distributed power supply is performed according to a second protocol different from the first protocol.
  • the first protocol for example, a protocol conforming to Open ADR (Automated Demand Response) (trademark) or a unique dedicated protocol can be used.
  • the second protocol for example, a protocol conforming to ECHONET Lite (registered trademark), SEP (Smart Energy Profile) 2.0, KNX, or an original dedicated protocol can be used.
  • ECHONET Lite registered trademark
  • SEP Smart Energy Profile 2.0
  • KNX Smart Energy Profile
  • the power management server 200 includes a management unit 210, a communication unit 220, and a control unit 230.
  • the power management server 200 is an example of a VTN (Virtual Top Node).
  • the management unit 210 is configured by a storage medium such as a non-volatile memory and / or an HDD, and manages data related to the facility 300.
  • the data related to the facility 300 includes, for example, the type of the distributed power source provided in the facility 300, the specifications of the distributed power source provided in the facility 300, and the like.
  • the spec may be the rated generated power of the PCS 331 connected to the solar cell 311, the rated output power of the PCS 332 connected to the storage battery 312, the rated output power of the PCS 333 connected to the fuel cell 313, and the like.
  • the communication unit 220 includes a communication module, and communicates with the local control device 360 via the network 120. As described above, the communication unit 220 performs communication according to the first protocol. For example, the communication unit 220 transmits the first message to the local control device 360 according to the first protocol. The communication unit 220 receives the first message response from the local control device 360 according to the first protocol.
  • the control unit 230 includes a memory, a CPU, and the like, and controls each component provided in the power management server 200. For example, the control unit 230 instructs the local control device 360 provided in the facility 300 to control the distributed power source provided in the facility 300 by transmitting a control message. The control unit 230 may instruct the local control device 360 provided in the facility 300 to control the load 350 provided in the facility 300. As described above, the control message may be a power flow control message, a reverse power flow control message, or a power control message.
  • the local control device 360 includes a first communication unit 361, a second communication unit 362, and a control unit 363.
  • the local control device 360 is an example of a VEN (Virtual End Node).
  • the first communication unit 361 is configured by a communication module and communicates with the power management server 200 via the network 120. As described above, the first communication unit 361 performs communication according to the first protocol. For example, the first communication unit 361 receives the first message from the power management server 200 according to the first protocol. The first communication unit 361 transmits a first message response to the power management server 200 according to the first protocol.
  • the second communication unit 362 includes a communication module, and communicates with distributed power sources (for example, PCS331 to PCS333). As described above, the second communication unit 362 performs communication according to the second protocol. For example, the second communication unit 362 transmits the second message to the distributed power source according to the second protocol. The second communication unit 362 receives the second message response from the distributed power source according to the second protocol. In addition, the second communication unit 362 may transmit the second message to the load 350 according to the second protocol. Further, the second communication unit 362 may receive the second message response from the load 350 according to the second protocol.
  • distributed power sources for example, PCS331 to PCS333.
  • the control unit 363 includes a memory and a CPU, and controls each component provided in the local control device 360. Specifically, in order to control the power of the facility 300, the control unit 363 instructs the distributed power supply to set the operating state of the distributed power supply by transmitting the second message and receiving the second message response. In order to manage the power of the facility 300, the control unit 363 may instruct the distributed power supply to report information on the distributed power supply by transmitting the second message and receiving the second message response. Further, the control unit 363 may instruct the load 350 to set the operation state of the load 350 by transmitting the second message and receiving the second message response. Further, the control unit 363 may instruct the load 350 to report information on the load 350 by transmitting the second message and receiving the second message response in order to manage the power of the facility 300.
  • control unit 363 controls a storage battery device including at least the storage battery 312.
  • the control unit 363 may control a solar cell device including at least the solar cell 311 and a fuel cell device including at least the fuel cell 313 in addition to the storage battery device.
  • the control unit 363 is suitable as information indicating an appropriate time zone (hereinafter referred to as a charging time zone) as a time zone for performing the charging operation of the storage battery device and a power source used for the charging operation of the storage battery device Information (see FIG. 5) indicating a valid power source (as described above, a charging power source).
  • a charging time zone As shown in FIG. 1-No.
  • Six power demand patterns are possible. In such a case, consider peak cut control for reducing the peak value of power supplied from the power system 110 to the facility 300 by the discharging operation of the storage battery device.
  • the peak value is a maximum value of the demand value in a predetermined period (for example, one day).
  • the demand value may be a cumulative value (kWh) of power supplied from the power system 110 to the facility 300 in a predetermined time (for example, 30 minutes), or an instantaneous value of power supplied from the power system 110 to the facility 300. (KW).
  • the power demand pattern 1 is a power demand pattern in which a peak of power demand occurs in the daytime.
  • the left vertical axis represents the absolute value (kW) of electricity demand
  • the right vertical axis represents the electricity demand index.
  • the power demand pattern of the facility 300 is No. When it corresponds to the power demand pattern 1, as shown in FIG.
  • the power demand pattern of the facility 300 is No.
  • the fuel cell 313 having a lower cost priority than the solar cell 311 may be used as the charging power source in order to surely perform the peak cut control.
  • One power demand pattern is, for example, a pattern found in department stores, supermarkets, home appliance mass retailers, government offices, research institutions, offices, hospitals, and the like.
  • the power demand pattern 2 is a power demand pattern in which a peak of power demand occurs at night as shown in FIG.
  • the left vertical axis represents the absolute value (kW) of electricity demand
  • the right vertical axis represents the electricity demand index.
  • the power demand pattern of the facility 300 is No. When it corresponds to the power demand pattern 2, as shown in FIG.
  • the daytime is managed as the charging time zone, and the solar cell device (PV) is managed as the charging power source. That is, the power demand pattern of the facility 300 is No. In the case of corresponding to the power demand pattern of 2, the solar cell 311 having a high cost priority can be used as the charging power source. As a result, the power cost of the storage battery 312 can be reduced.
  • the power demand pattern 2 is, for example, a pattern seen in restaurants and the like whose business hours are from evening to morning.
  • the power demand pattern 3 is a power demand pattern in which a peak of power demand occurs in the morning as shown in FIG.
  • the left vertical axis represents the absolute value (kW) of electricity demand
  • the right vertical axis represents the electricity demand index.
  • it is necessary to perform a charging operation of the storage battery device in preparation for peak cut control.
  • the power demand pattern of the facility 300 is No.
  • the fuel cell device (FC) is managed as the charging power source. That is, the power demand pattern of the facility 300 is No.
  • a fuel cell 313 having a lower cost priority than the solar cell 311 may be used as a charging power source in order to reliably perform peak cut control.
  • the power demand pattern 3 is a pattern found in, for example, a hotel, a hotel, a solar battery device, a facility having a heat demand device (for example, a hot water supply device), or the like.
  • the power demand pattern No. 4 is a power demand pattern in which the peak of power demand occurs in the morning and at night as shown in FIG.
  • the left vertical axis represents the absolute value (kW) of electricity demand
  • the right vertical axis represents the electricity demand index.
  • the power demand pattern of the facility 300 is No. In the case of corresponding to the power demand pattern of 4, as shown in FIG. 5, the two charging time zones and the charging power source are managed.
  • the night is managed as the charging time zone, and the fuel cell device (FC) is managed as the charging power source.
  • daytime is managed as a charging time zone, and a solar cell device (PV) is managed as a charging power source.
  • the power demand pattern of the facility 300 is No. 4 corresponds to the power demand pattern of No. 4
  • the peak of morning power demand is No.
  • the fuel cell 313 may be used as a charging power source as in the case of corresponding to the power demand pattern 3.
  • the solar battery 311 is used as a charging power source as in the case of corresponding to the power demand pattern of No. 2.
  • the power demand pattern 4 is, for example, a pattern that is found in kindergartens, elementary schools, junior high schools, cultural facilities, welfare facilities, and the like in winter.
  • the power demand pattern No. 5 is a power demand pattern in which the time zone in which the peak of power demand exists differs from season to season. Such a power demand pattern includes a first power demand pattern applied to the first season in which the peak value is the first peak value, and a second season in which the peak value is the second peak value smaller than the first peak value. And a second power demand pattern to be applied. Alternatively, no.
  • the power demand pattern No. 5 is a power demand pattern in which the time zone in which the peak of power demand exists differs for each day of the week. Such a power demand pattern includes a first power demand pattern applied to the first day of the week when the peak value is the first peak value, and a second day of the week where the peak value is the second peak value smaller than the first peak value.
  • the power demand pattern in which the time period in which the peak of power demand exists varies from season to season is a pattern found in, for example, kindergartens, elementary schools, junior high schools, cultural facilities, welfare facilities, and the like.
  • the power demand pattern in which the time zone in which the peak of power demand exists differs for each day of the week is, for example, a pattern seen in a store or office where a closed day (day of the week) is set.
  • the power demand pattern 6 is a power demand pattern in which fluctuations in power demand fall within a predetermined range during the day. In such a power demand pattern, since it is difficult to specify the peak of power demand, normal control that does not require charging operation of the storage battery device provided for peak cut control and peak cut control is performed.
  • the power demand pattern No. 6 is a pattern seen in convenience stores, restaurants open 24 hours, and the like.
  • the two or more power demand patterns include at least a specific power demand pattern that does not require peak cut control.
  • the specific power demand pattern is No. No. 5 second power demand pattern, No. 5; 6 is a power demand pattern.
  • the control unit 363 acquires the power demand of the facility 300 to be controlled, and the acquired power demand pattern is “No. 1-No. Specify which of 6 is applicable. Subsequently, the control unit 363 controls the charging operation of the storage battery device according to the specified power demand pattern. However, when the specified power demand pattern is the specific power demand pattern, the control unit 363 performs normal control that does not require the peak cut control and the charging operation of the storage battery device in preparation for the peak cut control.
  • the normal control may include control in which the facility 300 purchases necessary power from the power system 110 in accordance with the transition of the output power of the solar cell device and the power consumption of the load 350.
  • step S10 the local control device 360 determines whether or not the coefficient of variation is smaller than a predetermined value for the facility 300 to be controlled.
  • the process of step S12 is performed, and when the variation coefficient is not smaller than the predetermined value, the process of step S11 is performed.
  • the coefficient of variation is calculated based on, for example, a sample value of power demand in a predetermined period (for example, one day).
  • the sample value is, for example, a cumulative value (kWh) of power supplied from the power system 110 to the facility 300 in a predetermined time (for example, 30 minutes). Therefore, the number of sample values is a value obtained by dividing a predetermined period by a predetermined time.
  • the variation coefficient may be calculated by, for example, standard deviation of sample values / average value of sample values.
  • the variation coefficient may be a standard deviation of sample values. It means that the smaller the coefficient of variation, the smaller the fluctuation in power demand.
  • the predetermined value compared with the coefficient of variation is 0.1.
  • the power demand pattern with a coefficient of variation smaller than a predetermined value is the above-mentioned No. There is a high possibility that the power demand pattern 6 is met. That is, the process of step S10 is a process for determining whether the power demand pattern of the facility 300 to be controlled corresponds to the specific power demand pattern.
  • step S11 the local control device 360 determines whether the peak value is smaller than a predetermined value. When the peak value is smaller than the predetermined value, the process of step S12 is performed, and when the peak value is not smaller than the predetermined value, the process of step S13 is performed.
  • the peak value is the maximum value of the demand value in a predetermined period (for example, one day).
  • the predetermined value compared with the peak value is, for example, 90% of the maximum value of the electricity demand determined by the contract.
  • the power demand pattern where the peak value is smaller than the predetermined value is the No. mentioned above.
  • the process of step S11 is a process for determining whether or not the power demand pattern of the facility 300 to be controlled corresponds to the specific power demand pattern.
  • the local control device 360 performs normal control that does not require charging operation of the storage battery device provided for peak cut control and peak cut control.
  • the local control device 360 may control the storage battery device based on a factor other than the peak cut control. Another factor may be, for example, reception of a control message received from the power management server 200 or reception of an operation by the user.
  • step S13 the local control device 360 determines that the power demand pattern of the facility 300 to be controlled is No. 1-No. The power demand pattern of 4 is identified.
  • the local control device 360 is No. 1-No.
  • the correlation coefficient C of the power demand pattern of the facility 300 to be controlled with respect to each of the four power demand patterns is calculated.
  • the local control device 360 is No. 1-No.
  • the power demand pattern having the largest correlation coefficient C is specified as the power demand pattern of the facility 300 to be controlled.
  • step S14 the local control device 360 performs the peak cut control and the charging operation of the storage battery device prepared for the peak cut control according to the power demand pattern specified in step S13.
  • the local control device 360 manages information indicating a charging time zone and information indicating a charging power source for each of two or more power demand patterns.
  • the local control device 360 identifies the power demand pattern corresponding to the facility from the two or more power demand patterns, and is managed for the identified power demand pattern in the charging time zone managed for the identified power demand pattern.
  • the storage battery device is charged using the charging power source. According to such a configuration, since the charging time zone and the charging power source are managed in advance for two or more power demand patterns, the transition of the output power of the solar cell device and the power consumption of the load 350 is grasped in real time, etc.
  • the charging operation of the storage battery device provided for the peak cut control can be performed by a relatively simple method without the need for complicated control.
  • the two or more power demand patterns include at least a specific power demand pattern that does not require peak cut control. According to such a configuration, unnecessary peak cut control is performed by a relatively simple method without requiring complicated control such as grasping the transition of the output power of the solar cell device and the power consumption of the load 350 in real time. It is possible to perform normal control that does not need to be performed.
  • a solar cell device is exemplified as the first distributed power source.
  • the first distributed power supply may be a distributed power supply that uses natural energy such as wind power or geothermal heat.
  • the fuel cell device is exemplified as the second distributed power source.
  • the embodiment is not limited to this.
  • a storage battery device is illustrated as the third distributed power source.
  • the second distributed power source and the third distributed power source may be any distributed power source that satisfies a relationship in which the cost priority of the third distributed power source is relatively lower than the cost priority of the second distributed power source.
  • the types of the first distributed power source, the second distributed power source, and the third distributed power source are different from the viewpoint of cost priority.
  • the embodiment is not limited to this.
  • the types of the distributed power sources may be different in terms of specifications such as the rated output power of the distributed power source, the maintenance information of the distributed power source, and the control history of the distributed power source.
  • the power cost is different for each distributed power source.
  • the distributed power supply maintenance information may include information on the total operating time of the distributed power supply, distributed power life information, distributed power supply deterioration information, distributed power supply replacement information, distributed power supply repair information, and the like.
  • the control history of the distributed power supply may include distributed power supply stop information including information related to the normal stop or abnormal stop of the distributed power supply, distributed power supply start information, and the like. Note that the cost priority may be changed in accordance with changes in the distributed power source maintenance information, the distributed power source control history, and the like.
  • each distributed power source is provided with a PCS individually.
  • One PCS may be provided for two or more distributed power sources.
  • the local control device 360 provided in the facility 300 may not necessarily be provided in the facility 300.
  • some of the functions of the local control device 360 may be provided by a cloud server provided on the Internet. That is, it may be considered that the local control device 360 includes a cloud server.
  • the power supply control device that controls each distributed power supply is the local control device 360 (EMS)
  • the power supply control device may be PCS331 to PCS333.
  • the PCS 331 to PCS 333 may have a function of communicating with each other.
  • the power control device may be the power management server 200.
  • the first protocol is a protocol conforming to Open ADR2.0 and the second protocol is a protocol conforming to ECHONET Lite is illustrated.
  • the first protocol may be a protocol standardized as a protocol used for communication between the power management server 200 and the local control device 360.
  • the second protocol may be a protocol standardized as a protocol used in the facility 300.
  • the basic charge of power supplied from the power system 110 to the facility 300 may be determined based on the maximum value of the demand value in the basic charge calculation period (for example, one year).
  • the maximum value of the demand value may be synonymous with the maximum value of the electricity demand determined by the contract described above.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

Procédé de commande d'alimentation électrique comprenant : une étape A pour gérer, pour chacun d'au moins deux schémas de demande d'énergie, des informations indiquant une intervalle de temps appropriée en tant qu'intervalle de temps pour effectuer une opération de charge d'un dispositif de batterie de stockage, et des informations indiquant une alimentation électrique appropriée en tant qu'alimentation électrique à utiliser pour l'opération de charge du dispositif de batterie de stockage; et une étape B pour spécifier, parmi les au moins deux schémas de demande d'énergie, un schéma de demande d'énergie correspondant à une installation, et effectuer l'opération de charge du dispositif de batterie de stockage dans ladite intervalle de temps appropriée gérée pour le schéma de demande d'énergie spécifié en utilisant ladite alimentation électrique appropriée gérée pour le schéma de demande d'énergie spécifié.
PCT/JP2018/002560 2017-01-27 2018-01-26 Procédé de commande d'alimentation électrique, dispositif d'alimentation électrique, et système de commande d'alimentation électrique WO2018139604A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004893A1 (fr) * 2013-07-12 2015-01-15 パナソニック株式会社 Dispositif de gestion d'énergie, système de gestion d'énergie, serveur, procédé de gestion d'énergie, et programme
JP2017005990A (ja) * 2012-04-20 2017-01-05 京セラ株式会社 管理サーバ、局所気象情報生成システム、および局所気象情報生成方法

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WO2013136419A1 (fr) * 2012-03-12 2013-09-19 富士通株式会社 Procédé pour la création d'un plan de fonctionnement, programme de création d'un plan de fonctionnement et dispositif de création d'un plan de fonctionnement

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2017005990A (ja) * 2012-04-20 2017-01-05 京セラ株式会社 管理サーバ、局所気象情報生成システム、および局所気象情報生成方法
WO2015004893A1 (fr) * 2013-07-12 2015-01-15 パナソニック株式会社 Dispositif de gestion d'énergie, système de gestion d'énergie, serveur, procédé de gestion d'énergie, et programme

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