WO2015037307A1 - 蓄電制御装置、管理システム、蓄電制御方法、蓄電制御プログラム及び記録媒体 - Google Patents
蓄電制御装置、管理システム、蓄電制御方法、蓄電制御プログラム及び記録媒体 Download PDFInfo
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- WO2015037307A1 WO2015037307A1 PCT/JP2014/067005 JP2014067005W WO2015037307A1 WO 2015037307 A1 WO2015037307 A1 WO 2015037307A1 JP 2014067005 W JP2014067005 W JP 2014067005W WO 2015037307 A1 WO2015037307 A1 WO 2015037307A1
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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
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
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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
-
- 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
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
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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
- H02J7/34—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
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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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
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/12—The local stationary network supplying a household or a building
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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
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/12—The local stationary network supplying a household or a building
- H02J2310/14—The load or loads being home appliances
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
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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
Definitions
- Embodiments described herein relate generally to a power storage control device, a management system, a power storage control method, a power storage control program, and a recording medium.
- a storage battery is a device that stores power energy consumed by various devices in advance.
- the power storage control device controls power storage (charging and discharging) of the storage battery based on a demand response (DR: Demand Response) signal.
- DR Demand Response
- the power storage control device can control the power from the storage battery to the device (customer facility). In some cases, the power storage control device cannot efficiently control the power supplied to the device beyond the command value for the amount of power received included in the demand response signal.
- the problem to be solved by the present invention is that a power storage control device, a management system, a power storage control method, and a power storage capable of efficiently controlling the power supplied to the device to a power reception amount command value or more based on a demand response signal A control program and a recording medium are provided.
- the power storage control device of the embodiment includes a hold unit, a calculation unit, an acquisition unit, a calculation unit, and a control unit.
- the hold unit holds the value of the amount of received power supplied from the power receiving system to a device to which power is supplied from the storage battery at a predetermined time.
- the calculation unit calculates a difference between the current value of the amount of power received supplied from the power reception system to the device and the value of the amount of power received by the hold unit at a predetermined time.
- the acquisition unit acquires a command value for the amount of power received at predetermined time intervals determined by a predetermined time interval.
- the calculation unit calculates a limit value of the power reception amount for each time shorter than the predetermined time based on the command value of the power reception amount for each predetermined time.
- the control unit controls the storage of the storage battery based on the difference calculated by the calculation unit and the limit value of the amount of received power.
- the figure of the control system of a 1st embodiment The figure of the control object apparatus of 1st Embodiment.
- the figure of the relationship between the remaining time of 2nd Embodiment, and the excess amount of received electric power The figure of the output of the storage battery of a 2nd embodiment.
- the figure of operation movement of the electrical storage control apparatus of 2nd Embodiment.
- the power storage control device can control the power from the storage battery to the device to be controlled by controlling the storage (charging and discharging) of the storage battery based on the demand response (DR) signal.
- DR demand response
- FIG. 1 is a diagram of the control system SY.
- the control system SY may be provided in the target building 1 or may be provided in a predetermined position other than the target building 1.
- the control system SY may be provided with distributed functional blocks.
- the control system SY will be described as being provided in the target building 1 as an example.
- the control system SY includes a control target device 2, a local control device 3, and a management system 4. There may be a plurality of control target devices 2. That is, the control system SY may include control target devices 2-1 to 2-n (n is an integer of 2 or more). Further, the control system SY includes a local control device 3. There may be a plurality of local control devices 3. That is, the control system SY may include the local control device 3 for each control target device 2.
- the control target device 2 is a target device whose power reception amount (power reception amount) is controlled by controlling supplied power.
- the control target device 2 includes an energy consuming device, an energy production device, and an energy storage device.
- the energy consuming device is, for example, a heat source device.
- the energy production device is, for example, photovoltaic power generation (PV).
- the energy storage device is, for example, a storage battery.
- the local control device 3 controls the power supplied to the control target device 2 based on the control by the management system 4. In other words, the local control device 3 controls the amount of power received supplied to the control target device 2 based on the control by the management system 4.
- the management system 4 is a system including the power storage control device 300.
- the power storage control device 300 is, for example, a server device.
- a demand response signal is input to the management system 4.
- the demand response signal may include power peak shift target information and power suppression command information.
- the management system 4 outputs the operation schedule (start / stop schedule) of the controlled device 2 based on the demand response signal.
- a weather forecast signal is input to the management system 4.
- the management system 4 outputs the operation schedule (start / stop schedule) of the control target device 2 based on the weather forecast signal.
- the operation schedule of the control target device 2 may include an operation schedule (storage heat storage schedule) of the storage battery and the heat storage device.
- FIG. 2 is a diagram of the control target device 2.
- the control target device 2 includes a storage battery 20, a PV 21 (solar power generation system), an air-cooled HP 22 (air-cooled heat pump), a water-cooled refrigerator 23, a received power meter 24, an absorption chiller / heater 25, a CGS 28 (Co -Generation System (Cogeneration system).
- the control target device 2 may further include a solar water heater.
- FIG. 2 is a diagram of energy exchange of the control target device 2.
- the control target device 2 supplies power to the power demand system (energy consuming device) of the target building 1 using received power (electric power) and gas as energy sources.
- the power supplied from the power receiving system is supplied to the power demand system of the target building 1. Further, the storage battery 20 may be charged with power from the power receiving system.
- the control target device 2 supplies cold energy to the heat demand system of the target building 1 using power reception (electric power) and gas as energy sources.
- the electric power generated by the PV 21 is supplied to the power demand system. Moreover, the electric power generated by the PV 21 may be charged in the storage battery 20.
- the power generated by the CGS 28 is supplied to the power demand system. Further, the electric power generated by the CGS 28 may be charged in the storage battery 20.
- the received power meter 24 integrates a value indicating the power supplied from the power receiving system to the control target device 2 over a predetermined time to detect the amount of power received from the power receiving system to the control target device 2 during a predetermined time.
- the CGS 28 generates warm heat using the gas supplied from the gas system. Moreover, CGS28 may generate electric power with the gas supplied from the gas system.
- the absorption chiller / heater 25 produces cold energy by the warm heat (hot water) supplied from the CGS 28. The cold produced by the air-cooled HP 22, the water-cooled refrigerator 23 and the absorption chiller / heater 25 is supplied to the heat demand system of the target building 1.
- FIG. 3 is a diagram of the management system 4.
- the management system 4 includes a demand response reception unit 101, a monitoring unit 102, a demand response formulation unit 103, a process value reception unit 104, an optimal scheduling unit 105, a prediction unit 106, a weather forecast reception unit 107,
- the apparatus command value transmission unit 108, the approval unit 109, the demand response correspondence determination unit 110, the operation database unit 201, and the power storage control device 300 are provided.
- the operation database unit 201 stores a command value (planned value) of the amount of power received based on the demand response signal.
- the operation database unit 201 includes a database unit 202.
- the database unit 202 includes a demand operation schedule database unit 202a and a DR operation schedule database unit 202b.
- the monitoring unit 102, the optimal scheduling unit 105, the prediction unit 106, the approval unit 109, the demand response correspondence determination unit 110, and the database unit 202 are collectively referred to as the “demand response correspondence type optimal operation unit 100”. That's it.
- FIG. 4 is a diagram of the management system 4.
- the demand response receiving unit 101 receives the demand response signal, and transfers the received demand response signal to the demand response correspondence determination unit 110 and the demand response formulation unit 103.
- the demand response formulation unit 103 formulates the demand response signal transferred from the demand response reception unit 101.
- the demand response formulation unit 103 transfers the incentive information and the baseline information to the optimal scheduling unit 105 based on the formula indicating the formulated demand response signal.
- the baseline information is information indicating a command value (planned value) of the amount of power received in a predetermined time zone.
- the incentive information is information indicating an incentive (for example, received amount) to be paid to the consumer with respect to the reduction amount from the baseline of the power reception amount in a predetermined time zone.
- the current time information is input to the demand response correspondence determination unit 110. Further, a demand response signal is input from the demand response receiving unit 101 to the demand response correspondence determining unit 110. When a demand response signal is input, the demand response correspondence determining unit 110 determines whether or not to perform an operation corresponding to the demand response at regular intervals based on the current time.
- the demand response correspondence determination unit 110 When it is determined that the operation corresponding to the demand response is to be executed, the demand response correspondence determination unit 110 outputs a demand response trigger signal to the monitoring unit 102, the optimal scheduling unit 105, and the prediction unit 106.
- the demand response trigger signal is a trigger signal for causing the control target device 2 to execute an operation corresponding to the demand response. More specifically, the demand response trigger signal is a trigger signal for causing the optimum scheduling unit 105 to generate (plan) an operation schedule corresponding to the demand response (hereinafter referred to as “DR operation schedule”).
- the process value receiving unit 104 collects process values, that is, the amount of power received from the power receiving system to the control target device 2 at a predetermined time, the power demand amount and the heat demand amount of the target building 1 at regular intervals.
- the monitoring unit 102 determines whether or not to output a monitoring trigger signal to the prediction unit 106 and the optimal scheduling unit 105 based on the process values collected by the process value receiving unit 104 at regular intervals.
- the weather forecast receiving unit 107 receives a weather forecast signal.
- the weather forecast signal may include information indicating a temperature forecast for each time zone, for example.
- the prediction unit 106 predicts the power demand amount and the heat demand amount of the target building 1 based on the weather forecast signal.
- the predicted power demand and heat demand are input from the prediction unit 106 to the optimal scheduling unit 105.
- the optimum scheduling unit 105 generates demand operation schedule information of the control target device 2 for a predetermined time (predetermined period), and stores the generated demand operation schedule information in the demand operation schedule database unit 202a.
- the demand operation schedule information may include, for example, operation schedule (start / stop schedule) information of the control target device 2 for satisfying the power demand amount and the heat demand amount.
- the optimal scheduling unit 105 generates information indicating the DR operation schedule of the control target device 2 in a predetermined time (predetermined period), and stores the generated information indicating the DR operation schedule in the DR operation schedule database unit 202b.
- the approval unit 109 selects and approves the demand operation schedule or the DR operation schedule based on a predetermined condition.
- the approval unit 109 approves the demand operation schedule
- the approval unit 109 acquires information indicating the approved demand operation schedule from the demand operation schedule database unit 202a and transfers the information to the device command value transmission unit 108.
- Information indicating the approved demand operation schedule is transmitted from the device command value transmission unit 108 to the control target device 2 (for example, energy consuming device) as a command value for the amount of power received.
- the approval unit 109 approves the DR operation schedule
- the approval unit 109 acquires information indicating the approved DR operation schedule from the DR operation schedule database unit 202b and transfers the information to the device command value transmission unit 108.
- Information indicating the approved DR operation schedule may be transmitted from the device command value transmission unit 108 to the control target device 2 (for example, an energy consuming device) as a command value for the amount of power received.
- the approval unit 109 outputs the image signal to the display unit 400. This image signal is an image signal indicating the approved demand operation schedule or DR operation schedule.
- the device command value transmission unit 108 transmits information indicating the demand operation schedule to the control target device 2 as a command value of the amount of power received.
- the device command value transmission unit 108 transmits the information indicating the DR operation schedule to the control target device 2 as the command value of the amount of received power.
- the display unit 400 displays an image based on the image signal output from the approval unit 109.
- This image signal may be an image signal indicating a demand operation schedule or a DR operation schedule approved by the approval unit 109. An image based on this image signal will be described later with reference to FIG.
- the demand response signal is PTR (Peak Time Rebate)
- an incentive is paid to the customer for the amount of power reduction from the baseline in a predetermined time zone.
- the demand response signal includes a time zone power charge, a time zone incentive, and a time zone baseline.
- the demand response formulation unit 103 generates a DR operation schedule (operation plan) for realizing energy saving, cost saving, CO2 (carbon dioxide), and the like. For example, when generating a DR operation schedule for realizing cost saving, the demand response formulation unit 103 may generate an operation schedule so as to minimize the objective function C expressed by the equation (1). .
- C indicates the cost during the operation period.
- i is a code indicating a time zone in which one day is divided into 24 equal parts, and indicates one of 1 to 24 corresponding to the elapsed time from 0:00.
- k i indicates a power charge (power receiving unit price) in the time zone i.
- L i indicates the amount of received power in the time zone i.
- m i indicates the incentives (such as the amount of money) in the time zone i.
- B i indicates a baseline in time zone i.
- n i indicates the gas charge in time zone i.
- P i shows the gas consumption in the time zone i.
- the reduction amount L i of the power reception amount is expressed by the equation (2).
- S i is the amount of power that can be reduced by time period.
- D i indicates the time zone of the received power amount.
- the optimal scheduling unit 105 solves the optimization problem that minimizes the objective function C expressed by the equation (1).
- Various methods may be used to solve this optimization problem. For example, optimal scheduling unit 105, based on the weather forecast electricity demand is predicted based on the signal and heat demand, by calculating the time zone of the received power amount D i, may be solved optimization problem .
- FIG. 5 is a diagram of the power storage control device 300.
- the power storage control device 300 includes a hold unit 301, a calculation unit 302, a storage battery output command value creation unit 303, and a storage unit 304.
- the storage unit 304 can be configured with a non-temporary recording medium.
- the storage unit 304 may be provided inside the power storage control device 300 as shown in FIG. In addition, the storage unit 304 may be provided outside the power storage control device 300.
- Part or all of the hold unit 301, the calculation unit 302, and the storage battery output command value creation unit 303 for example, a processor such as a CPU (Central Processing Unit) executes a program stored in the storage unit 304.
- This is a software function unit that functions according to the above. Some or all of these functional units may be hardware functional units such as LSI (Large Scale Integration) and ASIC (Application Specific Integrated Circuit).
- the hold unit 301 receives the power reception amount (current value) supplied from the power reception system to the control target device 2 at a predetermined time from the power reception power meter 24 via the local control device 3 (communication system).
- the time when the command value for the amount of power received based on the demand response signal is determined is referred to as “hold time”.
- the hold time may be, for example, 0 minutes per hour or 30 minutes per hour.
- the hold unit 301 When the current time is the hold time (0 minutes per hour or 30 minutes per hour), the hold unit 301 holds the amount of power received (current value) supplied from the power receiving system to the control target device 2 at a predetermined time. That is, the hold unit 301 updates the held power reception amount every time the current time becomes the hold time (0 minutes per hour or 30 minutes per hour). The hold unit 301 outputs the held power reception amount value to the calculation unit 302.
- the calculation unit 302 receives the received power amount (current value) supplied from the power receiving system to the control target device 2 at a predetermined time from the power receiving power meter 24 via the local control device 3 (communication system).
- the calculation unit 302 subtracts the power reception amount held by the hold unit 301 from the power reception amount (current value) supplied from the power reception system to the control target device 2 at a predetermined time. That is, this subtraction result indicates the amount of power received supplied from the power receiving system to the control target device 2 during a predetermined T time (for example, 0.5 hours from time 0 minutes to time 30 minutes).
- the computing unit 302 outputs the received power amount supplied from the power receiving system to the control target device 2 at time T to the storage battery output command value creating unit 303.
- the storage battery output command value creation unit 303 acquires the command value (plan value) of the amount of received power based on the demand response signal from the operation database unit 201. That is, the storage battery output command value creation unit 303 acquires from the operation database unit 201 the command value of the amount of power received every predetermined time to the energy consuming device to which power is supplied from the storage battery 20.
- the storage battery output command value creation unit 303 acquires the power reception amount supplied from the power reception system to the control target device 2 at time T from the calculation unit 302.
- the storage battery output command value creation unit 303 calculates a power reception amount limit value for each time shorter than the T time, based on the command value of the power reception amount supplied from the power reception system to the control target device 2 at the T time.
- the storage battery output command value creation unit 303 stores power (charge and discharge) of the storage battery 20 on the local control device 3 (communication system) based on the received power limit value so as to satisfy the received power command value (planned value). ) Control through. More specifically, the storage battery output command value creation unit 303 outputs a signal indicating the output value of the storage battery to the storage battery 20 via the local control device 3 (communication system).
- the storage battery 20 When the output value of the storage battery is a positive value, the storage battery 20 performs discharge based on a signal indicating the output value of the storage battery. On the other hand, when the output value of the storage battery is a negative value, the storage battery 20 performs charging based on a signal indicating the output value of the storage battery.
- FIG. 6 is a diagram of the limit value of the amount of power received.
- the horizontal axis indicates time.
- the vertical axis represents the amount of power received [kWh].
- the limit value of the amount of power received at the current time is expressed by Equation (3).
- Received power limit value (T- ⁇ T) / T x (received power command value) ... (3)
- T is a predetermined hold time interval (predetermined time).
- ⁇ T is the remaining time from the current time to the next hold time (30 minutes per hour). Therefore, “T ⁇ T” is the time from the most recent hold time (0 minutes per hour) to the current time.
- the output value (battery output) of the storage battery is, for example, a value obtained by subtracting the amount of power received supplied from the power receiving system to the control target device 2 from the latest hold time to the current time from the limit value of the amount of power received at the current time. . That is, the output value of the storage battery is determined according to the deviation of the received power amount supplied from the power receiving system to the control target device 2 from the latest hold time to the current time with respect to the limit value of the received power amount at the current time.
- the limit value [kWh] of the amount of received power is determined to increase linearly with the passage of time.
- the amount of power received [kWh] supplied from the power receiving system to the control target device 2 from the latest hold time to the current time changes in each of the patterns A, B, and C as an example.
- the pattern A the amount of power received from the power receiving system to the control target device 2 is always below the limit value of the amount of power received.
- the pattern B the amount of power received from the power receiving system to the control target device 2 initially exceeds the limit value of the power reception amount, but falls below the limit value of the power reception amount from the middle.
- the amount of power received from the power receiving system to the control target device 2 is initially lower than the power receiving amount limit value, but exceeds the power receiving amount limit value midway.
- FIG. 7 is a diagram of the output of the storage battery 20.
- the graph shown in FIG. 6 is shown at the top.
- the graph which shows the output value of a storage battery in each of the pattern A, the pattern B, and the pattern C is shown by the lower stage.
- the horizontal axis shows time.
- the vertical axis represents the output value [kW] of the storage battery.
- the output value of the storage battery 20 is a negative value. That is, in the pattern A, the storage battery 20 always performs charging based on a signal indicating the output value of the storage battery. In the pattern B, the storage battery 20 is initially discharging based on a signal indicating the output value of the storage battery, but is being charged halfway. In the pattern C, the storage battery 20 was initially charged based on a signal indicating the output value of the storage battery, but was discharged halfway. With such control, in each of pattern A, pattern B, and pattern C, the amount of power received from the power receiving system to control target device 2 at time T always matches the limit value of the amount of power received.
- FIG. 7 shows the operation for 30 minutes from 0 minutes per hour to 30 minutes per hour in the day.
- the cost required to store the storage battery 20 can be calculated based on the integrated value of charging and discharging for 30 minutes, that is, the integrated value of the output value of the storage battery 20 for 30 minutes. It is. Further, the power storage of the storage battery 20 is used for adjusting the amount of power received from the power receiving system to the control target device 2. For this reason, the electric power unit price required for the electrical storage of the storage battery 20 is the same as the power receiving unit price.
- the amount of power received supplied from the power receiving system to the control target device 2 at a predetermined time is Since the storage battery 20 performs power storage based on the signal indicating the output value of the storage battery, it becomes possible to fall below the baseline. For this reason, the consumer can receive an incentive according to the operation schedule approved by the approval unit 109.
- FIG. 8 is a diagram of the operation of the power storage control device 300.
- the hold unit 301 receives the power reception amount (current value) supplied from the power reception system to the control target device 2 at a predetermined time from the power reception power meter 24 via the local control device 3 (communication system).
- Step S2 The hold unit 301 determines whether or not the current time is the hold time (0 minutes per hour or 30 minutes per hour). When the current time is the hold time (step S2: Yes), the hold unit 301 advances the process to step S3. On the other hand, when the current time is not the hold time (step S2: No), the hold unit 301 advances the process to step S4.
- Step S ⁇ b> 3 The hold unit 301 holds (holds) the current value of the power reception amount supplied from the power reception system to the control target device 2 at a predetermined time. (Step S ⁇ b> 4) The hold unit 301 outputs the held power reception amount value (hold value) to the calculation unit 302.
- Step S5 The calculation unit 302 subtracts the value of the power reception amount held by the hold unit 301 from the current value of the power reception amount supplied from the power reception system to the control target device 2 at a predetermined time. That is, the calculation unit 302 calculates the difference between the current value of the amount of power received supplied from the power reception system to the control target device 2 at a predetermined time and the value of the amount of power received held by the hold unit 301.
- Step S ⁇ b> 6 The storage battery output command value creation unit 303 acquires the command value (planned value) of the amount of power received based on the demand response signal from the operation database unit 201.
- Step S7 The storage battery output command value creation unit 303 calculates a limit value of the received power amount for each time shorter than the T time, based on the received power amount supplied from the power receiving system to the control target device 2 during the T time ( (See equation (3)).
- the storage battery output command value creation unit 303 calculates the output value of the storage battery.
- the output value of the storage battery may be a value obtained by subtracting the power reception amount supplied from the power reception system to the control target device 2 from the latest hold time to the current time from the limit value of the power reception amount at the current time.
- the storage battery output command value creation unit 303 outputs a signal indicating the output value of the storage battery to the storage battery 20.
- FIG. 9 is a diagram of the effect that the storage battery 20 has on incentive reception. More specifically, FIG. 9 is a diagram of an image for confirming an operation schedule (operation plan). This image may be displayed on the display unit 400 based on the image signal output from the approval unit 109. The image for confirming the operation schedule includes “operation plan and results”, the charging cost in the DR time zone, the incentive receipt amount due to the discharge in the DR time zone, the incentive receipt amount, and the baseline in the DR time zone. It is shown.
- the transition of power demand and the transition of power storage of the storage battery 20 are shown by bar graphs.
- the horizontal axis of this bar graph indicates time.
- the vertical axis of this bar graph represents received power [kW]. Therefore, one bar graph corresponds to the amount of power received per hour (power amount).
- this bar graph shows a baseline of received power (620 [kW] in FIG. 9).
- the storage battery 20 is discharging in the first and second hours of the DR time zone. In the third hour of the DR time zone, the storage battery 20 is charging. In the fourth hour of the DR time zone, the storage battery 20 is not performing charging or discharging.
- the CGS 28 generates electric power by generating electricity with the gas supplied from the gas system at the first hour, the second hour, and the third hour in the DR time zone.
- the cost “15,000 yen” required for charging the storage battery 20 in the third hour in the DR time zone is shown.
- the item “Incentive Receipt Amount Due to Discharge in DR Time Zone” indicates an incentive receipt amount “20 thousand yen” that can be obtained by discharging the storage battery 20.
- the storage battery 20 does not discharge in the first and second hours of the DR time zone, the received power supplied from the power receiving system to the control target device 2 cannot fall below the baseline, and demand The house cannot receive incentives. Actually, in the first and second hours of the DR time zone, the storage battery 20 is discharging based on the signal indicating the output value of the storage battery. Therefore, the receiving power supplied from the power receiving system to the control target device 2 is received. Electricity can fall below the baseline, and consumers can receive incentives.
- the item “Incentive Receipt Amount” indicates the incentive receipt amount “41,000 yen” that can be finally obtained.
- the incentive receipt amount that can be finally obtained includes the incentive receipt amount “20 thousand yen” that can be obtained by discharging the storage battery 20, and the incentive receipt amount that can be obtained by power generation such as CGS 28 “21,000”. Yen "is included.
- baseline of DR time zone a baseline “620 [kW]” based on the demand response signal is shown.
- the power storage control device 300 includes a hold unit (for example, the hold unit 301), a calculation unit (for example, the calculation unit 302), and an acquisition unit (for example, a storage battery output command value generation unit). 303), a calculation unit (for example, storage battery output command value creation unit 303), and a control unit (for example, storage battery output command value creation unit 303).
- the hold unit holds the value of the amount of power received from the power receiving system to a device to which power is supplied from the storage battery 20 at a predetermined time.
- the calculation unit calculates a difference between the current value of the amount of power received supplied from the power reception system to the device and the value of the amount of power received by the hold unit at a predetermined time.
- the acquisition unit acquires a command value for the amount of power received at predetermined time intervals determined by a predetermined time interval (for example, a command value for the amount of power received at time 30 in FIG. 6).
- the calculation unit calculates a power reception amount limit value for each time shorter than the predetermined time based on a command value of the power reception amount every predetermined time (for example, 30 minutes) (command value of the power reception amount based on a demand response signal). To do.
- the control unit controls the storage of the storage battery based on the difference calculated by the calculation unit and the limit value of the amount of received power.
- the management system 4 includes a power storage control device (for example, a power storage control device 300) and an operation database unit 201.
- the operation database unit 201 stores a command value (planned value) for the amount of power received based on the demand response signal.
- the power storage control method is a power storage control method in the power storage control device 300, and controls a holding step, a step of calculating a difference, a step of acquiring, and a step of calculating a limit value. Steps.
- the hold unit for example, the hold unit 301 holds the value of the amount of received power supplied from the power receiving system to the device to which power is supplied from the storage battery 20 at a predetermined time.
- the calculation unit determines the current value of the amount of power received supplied from the power reception system to the device and the value of the amount of power received held by the hold unit at a predetermined time. , The difference is calculated.
- the obtaining unit obtains the command value for the amount of power received for each predetermined time determined by a predetermined time interval.
- the calculation unit for example, the storage battery output command value creation unit 303 sets the power reception amount limit value for each time shorter than the predetermined time based on the command value of the power reception amount for each predetermined time. calculate.
- the control unit for example, the storage battery output command value creation unit 303 controls the storage of the storage battery 20 based on the difference calculated by the calculation unit and the limit value of the amount of received power.
- the power storage control program causes a computer to execute a holding procedure, a procedure for calculating a difference, a procedure for obtaining, a procedure for calculating a limit value, and a procedure for controlling.
- the power storage control program causes the computer to execute a procedure of holding, at a predetermined time, the value of the amount of power received from the power receiving system to the device to which power is supplied from the storage battery 20.
- the power storage control program calculates, in the computer, the difference between the current value of the amount of received power supplied from the power receiving system to the device and the value of the amount of received power held at a predetermined time. Let the procedure run.
- the power storage control program causes the computer to execute a procedure of acquiring a command value for the amount of power received every predetermined time determined by a predetermined time interval.
- the power storage control program causes the computer to execute a procedure for calculating the limit value for the received power amount for each time shorter than the predetermined time based on the command value for the received power amount for each predetermined time.
- the power storage control program causes the computer to execute a procedure for controlling the power storage of the storage battery 20 based on the calculated difference and the limit value of the power reception amount.
- the recording medium is a computer-readable recording medium on which the power storage control program is recorded.
- the control unit controls the storage of the storage battery based on the difference calculated by the calculation unit and the limit value of the amount of received power.
- the power storage control device 300, the management system 4, the power storage control method, the power storage control program, and the recording medium of the first embodiment make the power supplied to the device equal to or greater than the command value for the amount of power received based on the demand response signal. , Can be controlled efficiently.
- the power storage control device 300, the management system 4, the power storage control method, the power storage control program, and the recording medium of the first embodiment can obtain cost merit.
- the storage battery output command value creation unit 303 is based on the power reception amount supplied from the power reception system to the control target device 2 during a predetermined time (for example, from the latest hold time to the current time) and the demand response signal.
- a signal indicating the output value of the storage battery may be output to the storage battery 20 via the local control device 3 (communication system) based on the command value of the amount of power received.
- the storage battery output command value creation unit 303 of the first embodiment outputs a signal indicating the output value of the storage battery to the storage battery 20 based on the limit value of the amount of received power at the current time (for example, see Equation (3)). May be.
- the storage battery output command value creating unit 303 of the first embodiment is based on the remaining time ⁇ T from the current time to the next hold time (30 minutes per hour) (see, for example, Expression (3)), and the output value of the storage battery. May be output to the storage battery 20.
- the storage battery output command value creation unit 303 of the first embodiment subtracts the amount of power received supplied from the power receiving system to the control target device 2 from the latest hold time to the current time from the limit value of the amount of power received at the current time.
- a signal indicating the output value of the storage battery may be output to the storage battery 20 based on the value, that is, the deviation of the amount of power received from the limit value (see, for example, FIG. 7).
- the second embodiment is different from the first embodiment in that the discharge of the storage battery 20 is performed together immediately before the hold time.
- the first embodiment only differences from the first embodiment will be described.
- the electricity stored in the storage battery 20 is used to adjust the amount of power received from the power receiving system to the control target device 2. For this reason, the power unit price required for charging and discharging the storage battery 20 is the same as the power receiving unit price. Therefore, the storage battery 20 may be charged at a high power unit price in the daytime peak hours.
- the item “charging cost in DR time zone” indicates the cost “15,000 yen” (see FIG. 9) for charging the storage battery 20 in the third hour in the DR time zone.
- the received power meter 24 integrates a value indicating the power supplied from the power receiving system to the control target device 2 over a predetermined time, so that the control target device 2 from the power receiving system during the predetermined time.
- the amount of power received supplied to is detected.
- the received power meter 24 integrates a value indicating the power supplied from the control target device 2 to the power receiving system over the predetermined time, and thereby the amount of power flowing from the control target device 2 to the power receiving system during the predetermined time (hereinafter, referred to as the following). "Reverse power flow" is detected).
- the storage battery output command value creation unit 303 can detect the difference between the amount of power received from the power receiving system to the control target device 2 during the predetermined time and the amount of power that flows backward during the predetermined time.
- the power storage control device can reduce the charging cost in the DR time zone, and the cost merit is increased. Further, the capacity of the storage battery 20 can be reduced if the discharge amount can be reduced.
- the electrical storage control apparatus can acquire a further cost merit compared with 1st Embodiment.
- FIG. 10 is a diagram of the limit value of the amount of power received.
- the horizontal axis indicates time.
- the vertical axis represents the amount of power received [kWh].
- the amount of power received [kWh] supplied from the power receiving system to the control target device 2 from the most recent hold time to the current time varies, for example, in each of pattern A, pattern B, and pattern D.
- Pattern A and pattern B are the same as in FIG.
- Pattern D the amount of power received from the power receiving system to the control target device 2 initially exceeds the limit value of the amount of received power, but after receiving the remaining time ⁇ T from the current time to the next hold time, The amount is below the limit. This is because after the remaining time ⁇ T from the current time to the next hold time, that is, immediately before the next hold time, the storage battery 20 collectively performs discharge based on a signal indicating the output value of the storage battery. is there.
- the storage battery output command value creation unit 303 In order to cause the storage battery 20 to be discharged at the stage when the amount of power received exceeds the limit value ⁇ W at the current time when the remaining time ⁇ T until the next hold time, the storage battery output command value creation unit 303 has a remaining time ⁇ T. And a signal indicating the output value of the storage battery is output to the storage battery 20 based on a function determined by the excess amount ⁇ W of the amount of power received.
- Equation (4) The function determined by the remaining time ⁇ T and the excess amount ⁇ W [kWh] of the amount of power received with respect to the limit value is expressed by Equation (4) using the maximum power value X [kW] that the storage battery can output (discharge). Is done.
- a predetermined power amount ⁇ [kWh] may be added to the power receiving amount excess amount ⁇ W.
- FIG. 11 is a diagram showing the relationship between the remaining time and the excess amount of received power.
- the horizontal axis indicates the remaining time ⁇ T.
- the vertical axis indicates the power reception excess ⁇ W with respect to the limit value.
- the remaining time ⁇ T increases as it approaches the latest hold time, but decreases as it approaches the next hold time.
- Expression (4) and Expression (5) the smaller the remaining time ⁇ T, the smaller the excess amount ⁇ W of the power reception amount that the storage battery 20 can accept.
- the storage battery can compensate for the excess amount ⁇ W of the power reception amount with respect to the limit value even if the remaining time ⁇ T is small.
- the power reception amount excess amount ⁇ W starts from a negative value and becomes a positive value when the power reception amount limit value is exceeded. Furthermore, the excess amount ⁇ W of the amount of received power gradually increases while maintaining a positive value, but decreases until it reaches a negative value when the relationship shown in Expression (5) is satisfied. This is because the storage battery 20 collectively performs discharging based on a signal indicating the output value of the storage battery at a stage where the relationship shown in the expression (5) is satisfied.
- the slope of the straight line determined by the equation (4) or the equation (5) increases in accordance with the maximum power value X that can be output from the storage battery.
- a storage battery with a large maximum power value X that can be output from the storage battery can compensate for an excess amount ⁇ W of the amount of power received with respect to the limit value even if the remaining time ⁇ T is small. Is superior.
- FIG. 12 is a diagram of the output of the storage battery 20.
- the graph shown in FIG. 10 is shown at the top.
- the graph which shows the output value of a storage battery in each of the pattern A, the pattern B, and the pattern D is shown by the lower stage.
- the horizontal axis shows time.
- the vertical axis represents the output value [kW] of the storage battery.
- Pattern A when the remaining time ⁇ T is reached, the relationship shown in Expression (5) is not satisfied, and the amount of power received from the power receiving system to the control target device 2 is below the limit value of the power received amount.
- the output value of the storage battery 20 is always 0. That is, in the pattern A, the storage battery 20 is not performing charging and discharging based on a signal indicating the output value of the storage battery.
- the pattern B As a result, the “charging time in the DR time zone” (which will be described later with reference to FIG. 14) does not occur, and the power storage control device can obtain a cost merit.
- the storage battery 20 performs the discharge collectively when the remaining time ⁇ T is reached.
- the amount of power received from the power receiving system to the control target device 2 at time T satisfies the power receiving amount limit value at least at the hold time.
- FIG. 13 is a diagram of the operation of the power storage control device 300. Steps Sa1 to Sa7 are the same as steps S1 to S7 shown in FIG.
- Step Sa8 The storage battery output command value creation unit 303 determines whether or not the power reception amount excess amount ⁇ W with respect to the limit value is equal to or larger than the maximum power reception amount excess amount allowable for the storage battery 20, that is, Equation (4). Alternatively, it is determined whether or not the relationship shown in Expression (5) is satisfied.
- the storage battery output command value creation unit 303 advances the process to step Sa9.
- the power reception amount excess amount ⁇ W with respect to the limit value is less than the maximum power reception amount excess amount allowable for the storage battery 20 (step Sa8)
- the storage battery output command value creation unit 303 advances the process to step Sa10. .
- Step Sa9 The storage battery output command value creation unit 303 determines the output value of the storage battery as the maximum power value X that the storage battery can output.
- Step Sa10 The storage battery output command value creation unit 303 determines the output value of the storage battery as the value 0.
- Step Sa11 The storage battery output command value creation unit 303 outputs a signal indicating the output value of the storage battery to the storage battery 20 via the local control device 3 (communication system).
- the output value of the storage battery is determined to be the maximum power value X
- the storage battery 20 is discharged at the maximum power value X.
- the output value of the storage battery is determined to be 0, the storage battery 20 does not perform either charging or discharging.
- FIG. 14 is a diagram of the effect that the storage battery 20 has on incentive reception. More specifically, FIG. 14 is a diagram of an image for confirming an operation schedule (operation plan). This image may be displayed on the display unit 400 based on the image signal output from the approval unit 109.
- the storage battery 20 is discharging in the first and second hours of the DR time zone. Unlike the first embodiment, the storage battery 20 performs neither charging nor discharging in the third hour of the DR time zone. In the fourth hour of the DR time zone, the storage battery 20 is not performing charging or discharging.
- the CGS 28 generates electric power by generating power with the gas supplied from the gas system at the first hour, the second hour, and the third hour in the DR time zone.
- the item “charging time in DR time zone” indicates the cost “0,000 yen” required for charging the storage battery 20 in the DR time zone.
- the power storage control device 300 according to the second embodiment can reduce the charging cost in the DR time period and has a higher cost merit than the first embodiment.
- the storage unit 20 can output the amount of power received by the control unit (for example, the storage battery output command value creation unit 303) of the second embodiment that exceeds the limit value and is supplied to the control target device 2. If the amount of power based on the maximum power value X is equal to or greater than the amount of power received, that is, the amount of power received by the storage battery 20 is greater than or equal to the allowable amount, even if the storage of the storage battery 20 is controlled collectively by a predetermined time (next hold time) Good (see, for example, the bottom row in FIG. 12).
- a predetermined time (next hold time) Good see, for example, the bottom row in FIG. 12).
- the control unit may collectively control the storage of the storage battery 20 by a predetermined time (hold time).
- the power storage control device 300, the management system 4, the power storage control method, the power storage control program, and the recording medium of the second embodiment make the power supplied to the device equal to or greater than the command value for the amount of power received based on the demand response signal. Can be controlled more efficiently.
- the power storage control device 300, the management system 4, the power storage control method, the power storage control program, and the recording medium of the second embodiment can obtain more cost merit.
- the storage battery output command value creation unit 303 of the second embodiment may output a signal indicating the output value of the storage battery to the storage battery 20 based on the maximum power value X that the storage battery 20 can output.
- the storage battery output command value creation unit 303 of the second embodiment outputs a signal indicating the output value of the storage battery to the storage battery 20 based on a value that is smaller by a margin value than the maximum power value X that the storage battery can output. May be.
- This margin value is determined based on, for example, the discharge characteristics of the storage battery 20. This margin value is, for example, the electric energy ⁇ shown in Expression (5) or FIG.
- the third embodiment is different from the second embodiment in that the storage battery 20 is discharged so that the amount of received power does not exceed the command value. Only differences from the second embodiment will be described below. The third embodiment will be described on the assumption that no reverse power flow occurs.
- the received power meter 24 integrates a value indicating the power supplied from the power receiving system to the control target device 2 for a predetermined time to detect the amount of power received from the power receiving system to the control target device 2 during the predetermined time. .
- FIG. 15 is a diagram of the limit value of the amount of received power.
- the horizontal axis indicates time.
- the vertical axis represents the amount of power received [kWh].
- the amount of power received [kWh] supplied from the power receiving system to the control target device 2 from the most recent hold time to the current time changes in each of the patterns A, B, and E as an example.
- Pattern A and pattern B are the same as in FIG.
- pattern E the amount of power received from the power receiving system to the control target device 2 initially exceeds the limit value of the amount of power received, but after receiving the remaining time ⁇ T from the current time to the next hold time, The amount is below the limit. This is because after the remaining time ⁇ T from the current time to the next hold time, that is, immediately before the next hold time, the storage battery 20 collectively performs discharge based on a signal indicating the output value of the storage battery. is there. The remaining time ⁇ T is longer than that shown in FIG. Pattern E differs from pattern D shown in FIG. 10 in that the amount of received power does not exceed the command value.
- FIG. 16 is a diagram of the output of the storage battery 20.
- the graph shown in FIG. 15 is shown at the top.
- the graph which shows the output value of a storage battery in each of the pattern A, the pattern B, and the pattern E is shown by the lower stage.
- the horizontal axis shows time.
- the vertical axis represents the output value [kW] of the storage battery.
- pattern E when the remaining time ⁇ T is longer than that in the case shown in FIG. 12, the relationship shown in Expression (5) is satisfied, and the amount of power received from the power receiving system to the control target device 2 is The amount limit is exceeded. For this reason, the storage battery 20 collectively performs discharging when the remaining time ⁇ T is reached. Thereby, in each of the pattern A, the pattern B, and the pattern E, the power reception amount supplied from the power reception system to the control target device 2 at time T can satisfy the power reception amount limit value at least at the hold time.
- the storage battery output command value creation unit 303 that controls the storage of the storage battery 20 based on the difference calculated by the calculation unit 302 and the limit value of the amount of received power. As a result, the power supplied to the device can be controlled more efficiently than the command value for the amount of power received based on the demand response signal.
- control system SY of the embodiment may be configured by a cloud server device. That is, at least a part of the processing executed by the control system SY of the embodiment may be executed by cloud computing.
- This cloud computing includes SaaS (Software as a Service) that provides an application (software) as a service, PaaS (Platform as a Service) that provides a platform (platform) for running an application as a service, At least one of IaaS (Infrastructure as Service) that provides resources such as a power storage control device, a central processing unit, and storage as a service (public cloud) may be included.
- SaaS Software as a Service
- PaaS Platinum as a Service
- PaaS Platform as a Service
- IaaS infrastructure as Service
- this cloud computing may include remote operation via the Internet by a cloud service providing layer (PaaS).
- PaaS cloud service providing layer
- At least one of monitoring, failure handling, and operation may be performed by a proxy service.
- a proxy service For example, an ASP (Application Service Provider) may act on behalf of the control system SY to monitor, troubleshoot and operate.
- the control system SY of the embodiment may be monitored, handled by a failure, and operated by a plurality of entities.
- the program for realizing the control system SY described above is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed, thereby executing the execution process. You may go.
- the “computer system” may include an OS and hardware such as peripheral devices.
- the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
- the “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.
- the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
- the program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium.
- the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
- the program may be for realizing a part of the functions described above. Furthermore, what can implement
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Abstract
Description
(第1の実施形態)
蓄電制御装置は、デマンドレスポンス(DR)信号に基づいて、蓄電池の蓄電(充電及び放電)を制御することにより、蓄電池から制御対象機器への電力を制御することができる。
CGS28により発電された電力は、電力需要系に供給される。また、CGS28により発電された電力は、蓄電池20に充電されてもよい。
受電電力メータ24は、受電系から制御対象機器2に供給された電力を示す値を所定時間に積算することにより、所定時間に受電系から制御対象機器2に供給された受電量を検出する。
吸収式冷温水器25は、CGS28から供給された温熱(温水)により、冷熱を製造する。
空冷HP22、水冷冷凍機23及び吸収式冷温水器25により製造された冷熱は、対象建物1の熱需要系に供給される。
監視部102は、予測部106及び最適スケジューリング部105に監視トリガ信号を出力するか否かを、プロセス値受信部104により収集されたプロセス値に基づいて、定周期で判定する。
予測部106は、監視トリガ信号が監視部102から入力された場合、天気予報信号に基づいて、対象建物1の電力需要量及び熱需要量を予測する。
デマンドレスポンス信号がPTR(Peak Time Rebate)である場合、所定の時間帯における受電量のベースラインからの削減量に対して、需要家にインセンティブが支払われる。この場合、デマンドレスポンス信号には、時間帯別電力料金と、時間帯別インセンティブと、時間帯別ベースラインとが含まれる。
図5は、蓄電制御装置300の図である。蓄電制御装置300は、ホールド部301と、演算部302と、蓄電池出力指令値作成部303と、記憶部304とを有する。記憶部304は、非一時的な記録媒体で構成することができる。記憶部304は、図5に示すように蓄電制御装置300の内部に備えられてもよい。また、記憶部304は、蓄電制御装置300の外部に備えられてもよい。ホールド部301と、演算部302と、蓄電池出力指令値作成部303との一部または全部は、例えば、CPU(Central Processing Unit)等のプロセッサが、記憶部304に記憶されたプログラムを実行することにより機能するソフトウェア機能部である。これらの機能部のうち一部または全部は、LSI(Large Scale Integration)やASIC(Application Specific Integrated Circuit)等のハードウェア機能部であってもよい。
図8は、蓄電制御装置300の動作の図である。
(ステップS1)ホールド部301は、所定時間に受電系から制御対象機器2に供給された受電量(現在値)を、受電電力メータ24からローカル制御装置3(通信システム)を介して受信する。
(ステップS4)ホールド部301は、保持した受電量の値(ホールド値)を、演算部302に出力する。
(ステップS7)蓄電池出力指令値作成部303は、T時間に受電系から制御対象機器2に供給された受電量に基づいて、T時間よりも短い時間毎の受電量の制限値を算出する(式(3)を参照)。
(ステップS9)蓄電池出力指令値作成部303は、蓄電池の出力値を示す信号を、蓄電池20に出力する。
第2の実施形態では、蓄電池20の放電をホールド時刻の直前にまとめて実行する点が、第1の実施形態と相違する。以下では、第1の実施形態との相違点についてのみ説明する。
図13は、蓄電制御装置300の動作の図である。
ステップSa1~ステップSa7は、図8に示すステップS1~ステップS7と同様である。
(ステップSa10)蓄電池出力指令値作成部303は、蓄電池の出力値を値0と定める。
第2の実施形態の蓄電池出力指令値作成部303は、蓄電池が出力可能である最大電力値Xに対してマージン値だけ少ない値に基づいて、蓄電池の出力値を示す信号を、蓄電池20に出力してもよい。このマージン値は、例えば、蓄電池20の放電特性に基づいて定められる。このマージン値は、例えば、式(5)や図11に示す電力量αである。
第3の実施形態では、受電量が指令値を超過しないように蓄電池20が放電する点が、第2の実施形態と相違する。以下では、第2の実施形態との相違点についてのみ説明する。第3の実施形態では、逆潮流が発生しない前提で説明する。
また、上記プログラムは、このプログラムを記憶装置等に格納したコンピュータシステムから、伝送媒体を介して、あるいは、伝送媒体中の伝送波により他のコンピュータシステムに伝送されてもよい。ここで、プログラムを伝送する「伝送媒体」は、インターネット等のネットワーク(通信網)や電話回線等の通信回線(通信線)のように情報を伝送する機能を有する媒体のことをいう。
また、上記プログラムは、前述した機能の一部を実現するためのものであっても良い。さらに、前述した機能をコンピュータシステムにすでに記録されているプログラムとの組み合わせで実現できるもの、いわゆる差分ファイル(差分プログラム)であっても良い。
Claims (8)
- 蓄電池から電力が供給される機器に受電系から供給された受電量の値を、予め定められた時刻に保持するホールド部と、
前記受電系から前記機器に供給された受電量の現在値と、前記予め定められた時刻に前記ホールド部により保持された受電量の値と、の差を算出する演算部と、
前記予め定められた時刻の間隔により定まる所定時間毎の受電量の指令値を取得する取得部と、
前記所定時間毎の受電量の指令値に基づいて、前記所定時間よりも短い時間毎の受電量の制限値を算出する算出部と、
前記演算部により算出された前記差と、前記受電量の制限値と、に基づいて、前記蓄電池の蓄電を制御する制御部と、
を備える蓄電制御装置。 - 前記制御部は、前記制限値を超えて前記機器に供給された受電量が、前記蓄電池が許容可能な受電量以上である場合、前記予め定められた時刻までに、前記蓄電池の蓄電をまとめて制御する、請求項1に記載の蓄電制御装置。
- 前記制御部は、前記蓄電池が出力可能である最大電力値に基づいて、前記蓄電池の出力値を示す信号を前記蓄電池に出力する、請求項1又は請求項2に記載の蓄電制御装置。
- 前記制御部は、前記蓄電池が出力可能である最大電力値に対してマージン値だけ少ない値に基づいて、前記蓄電池の出力値を示す信号を前記蓄電池に出力する、請求項3に記載の蓄電制御装置。
- 蓄電池から電力が供給される機器に受電系から供給された受電量の値を、予め定められた時刻に保持するホールド部と、
前記受電系から前記機器に供給された受電量の現在値と、前記予め定められた時刻に前記ホールド部により保持された受電量の値と、の差を算出する演算部と、
前記予め定められた時刻の間隔により定まる所定時間毎の受電量の指令値を取得する取得部と、
前記所定時間毎の受電量の指令値に基づいて、前記所定時間よりも短い時間毎の受電量の制限値を算出する算出部と、
前記演算部により算出された前記差と、前記受電量の制限値と、に基づいて、前記蓄電池の蓄電を制御する制御部と、
を備える蓄電制御装置と、
前記所定時間毎の受電量の指令値を記憶する運転データベース部と、
を備える管理システム。 - 蓄電制御装置における蓄電制御方法であって、
ホールド部が、蓄電池から電力が供給される機器に受電系から供給された受電量の値を、予め定められた時刻に保持するステップと、
演算部が、前記受電系から前記機器に供給された受電量の現在値と、前記予め定められた時刻に前記ホールド部により保持された受電量の値と、の差を算出するステップと、
取得部が、前記予め定められた時刻の間隔により定まる所定時間毎の受電量の指令値を取得するステップと、
算出部が、前記所定時間毎の受電量の指令値に基づいて、前記所定時間よりも短い時間毎の受電量の制限値を算出するステップと、
制御部が、前記演算部により算出された前記差と、前記受電量の制限値と、に基づいて、前記蓄電池の蓄電を制御するステップと、
を有する蓄電制御方法。 - コンピュータに、
蓄電池から電力が供給される機器に受電系から供給された受電量の値を、予め定められた時刻に保持する手順と、
前記受電系から前記機器に供給された受電量の現在値と、前記予め定められた時刻に保持された受電量の値と、の差を算出する手順と、
前記予め定められた時刻の間隔により定まる所定時間毎の受電量の指令値を取得する手順と、
前記所定時間毎の受電量の指令値に基づいて、前記所定時間よりも短い時間毎の受電量の制限値を算出する手順と、
算出された前記差と、前記受電量の制限値と、に基づいて、前記蓄電池の蓄電を制御する手順と、
を実行させるための蓄電制御プログラム。 - コンピュータに、
蓄電池から電力が供給される機器に受電系から供給された受電量の値を、予め定められた時刻に保持する手順と、
前記受電系から前記機器に供給された受電量の現在値と、前記予め定められた時刻に保持された受電量の値と、の差を算出する手順と、
前記予め定められた時刻の間隔により定まる所定時間毎の受電量の指令値を取得する手順と、
前記所定時間毎の受電量の指令値に基づいて、前記所定時間よりも短い時間毎の受電量の制限値を算出する手順と、
算出された前記差と、前記受電量の制限値と、に基づいて、前記蓄電池の蓄電を制御する手順と、
を実行させるための蓄電制御プログラムを記録したコンピュータ読み取り可能な記録媒体。
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