WO2015136575A1 - 蓄電池制御装置、蓄電池制御方法、及び、蓄電池制御システム - Google Patents
蓄電池制御装置、蓄電池制御方法、及び、蓄電池制御システム Download PDFInfo
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- WO2015136575A1 WO2015136575A1 PCT/JP2014/001463 JP2014001463W WO2015136575A1 WO 2015136575 A1 WO2015136575 A1 WO 2015136575A1 JP 2014001463 W JP2014001463 W JP 2014001463W WO 2015136575 A1 WO2015136575 A1 WO 2015136575A1
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- storage battery
- frequency
- amount
- charge
- discharge amount
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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
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
Definitions
- the present invention relates to a storage battery control device, a storage battery control method, and a storage battery control system.
- FR control Frequency Request
- Patent Document 1 charges the storage battery by correcting the output command value given to the storage battery when the remaining capacity of the storage battery deviates from the allowable range.
- a technique for performing control to maintain the remaining amount within an allowable range is disclosed.
- the present invention provides a storage battery control device that maintains the remaining amount of storage battery within an appropriate range while appropriately performing frequency control.
- a storage battery control device is a storage battery control device for controlling the frequency of a power system by charging and discharging the storage battery, the frequency acquisition unit acquiring the frequency of the power system, and the storage battery A remaining charge detection unit for detecting the remaining charge of the battery, and a setting unit for setting a charge amount or a discharge amount to be charged / discharged to or from the storage battery to bring the frequency of the power system close to a reference frequency according to the acquired frequency
- An adjustment unit that adjusts the charge amount or the discharge amount set by the setting unit according to the acquired frequency and the detected remaining charge amount, and the adjusted charge amount or the discharge
- a charge / discharge control unit that charges and discharges the storage battery based on the amount, and the adjustment unit is a case where the detected remaining charge amount is smaller than a lower limit value of the suitability range and smaller than the reference frequency.
- the amount of charge set by the setting unit is adjusted to be decreased to a predetermined ratio and detected.
- the setting when the frequency is larger than the upper limit value of the aptitude range and the acquired frequency is included in the second dead band from the second frequency higher than the reference frequency to the reference frequency.
- the discharge amount set by the unit is adjusted to decrease to a predetermined rate.
- the storage battery control device of the present invention can maintain the remaining amount of storage battery within an allowable range while appropriately performing frequency control.
- FIG. 1 is a system configuration diagram showing the configuration of the supply and demand control system according to the first embodiment.
- FIG. 2 is a functional block diagram of the storage battery control device according to the first embodiment.
- FIG. 3 is an explanatory diagram of setting and adjustment of the control range by the charge / discharge amount setting unit and the gain adjustment unit according to the first embodiment.
- FIG. 4A is an explanatory diagram of the setting of the charge / discharge amount and the dead zone by the charge / discharge amount setting unit and the gain adjustment unit according to the first embodiment.
- FIG. 4B is a detailed explanatory diagram of setting a dead zone in the gain adjustment unit according to the first embodiment.
- FIG. 5 is an explanatory diagram of the charge / discharge amount in the charge / discharge control unit according to the first embodiment.
- FIG. 6 is a flowchart of charge / discharge amount setting and adjustment processing in the storage battery control device according to Embodiment 1.
- FIG. 7 is a flowchart of gain adjustment processing in the gain adjustment unit according to the first embodiment.
- FIG. 8 is a configuration diagram of the entire system including the storage battery control device according to the second embodiment.
- FIG. 9 is a functional block diagram of the storage battery control device according to the second embodiment.
- FIG. 10 is an explanatory diagram of a storage battery control method in the related art.
- the base point is the charge / discharge amount of the storage battery when the frequency of the system power supply (hereinafter also referred to as “system frequency”) is equal to the reference frequency.
- FIG. 10 is an explanatory diagram of a storage battery control method in the related art.
- Each of (a) to (c) of FIG. 10 shows the control range and base point of the charge / discharge amount with respect to the fluctuation of the grid power frequency when the remaining charge is lower than the lower limit value of the suitability range (a).
- the case where the amount is within the appropriate range (b) and the case where the remaining charge is higher than the upper limit value of the appropriate range are shown (c).
- the storage battery control device in the related art sets the control widths of the charge side portion and the discharge side portion of the control range equally ((b) of FIG. 10). For example, when the system frequency varies from the reference frequency to 50.2 Hz, the storage battery charges a charge amount (for example, 20 kW) corresponding to 50.2 Hz. When the system frequency varies from the reference frequency to 49.8 Hz, the storage battery discharges a discharge amount (for example, 20 kW) corresponding to 49.8 Hz.
- the base point is at the center of the control range. Further, since the base point coincides with the point that the charge amount and the discharge amount are both zero, the storage battery does not charge or discharge when the system frequency is equal to the reference frequency.
- the storage battery control device When the remaining charge is lower than the lower limit value of the aptitude range, the storage battery control device according to the related art reduces the upper limit value of the control range while maintaining the lower limit value of the control range as compared with the case of (b). Adjust the control range. Thus, it is also considered that the remaining amount of storage battery can be maintained within an allowable range while appropriately performing frequency control by shifting the charge / discharge amount by the storage battery to the charging side.
- the base point is shifted to the charging side by adjusting the control range, the following inversion operation may occur.
- the system frequency fluctuates slightly in a direction lower than 50 Hz (for example, 49.95 Hz)
- the storage battery needs to be discharged. Can occur.
- the reversal operation occurs, there is a problem that the deviation of the system frequency from the reference frequency becomes larger.
- a storage battery control device for controlling the frequency of an electric power system by charging and discharging the storage battery, and the frequency of the electric power system
- a frequency acquisition unit that acquires the charge level of the storage battery, a remaining charge level detection unit that detects the remaining charge level of the storage battery, and a charge amount or a discharge amount that is charged / discharged to the storage battery to bring the frequency of the power system closer to a reference frequency.
- a setting unit that is set according to the frequency, and an adjustment unit that adjusts the charge amount or the discharge amount set by the setting unit according to the acquired frequency and the detected remaining charge amount.
- a charge / discharge control unit that charges and discharges the storage battery based on the adjusted charge amount or the discharge amount, and the adjustment unit is a case where the detected remaining charge amount is smaller than a lower limit value of an appropriate range.
- the storage battery control device reduces the charge / discharge amount of the storage battery when the charge / discharge amount of the storage battery deviates from the appropriate range and when the difference from the reference frequency of the system frequency is relatively small. To control. Thereby, it can contribute to stabilization of a system
- the setting unit is a control function indicating a charge amount or a discharge amount of the storage battery with respect to the detected frequency, and the charge amount or the discharge amount linearly changes at a first change rate with respect to the change in the frequency.
- the charge amount or the discharge amount is set by setting a control function indicating that the charge amount or the discharge in the first dead zone or the second dead zone indicated by the control function is set.
- the charge amount or the discharge amount is adjusted by changing the change rate of the amount to a second change rate smaller than the first change rate.
- the storage battery control device can adjust the charge / discharge amount of the storage battery based on the control function indicating the charge / discharge amount with respect to the system frequency.
- the change rate (slope) of the control function reflects that the charge / discharge amount by the storage battery is reduced when the difference of the system frequency from the reference frequency is relatively small. Therefore, the storage battery control apparatus can quantitatively maintain the storage battery remaining amount within the allowable range while appropriately performing the frequency control.
- the adjustment unit maintains the change rate of the charge amount or the discharge amount at the first change rate at a frequency that is not included in any of the first dead zone and the second dead zone indicated by the control function.
- the charge amount or the discharge amount is adjusted.
- the storage battery control device adjusts the charge / discharge amount by the same change rate as the change rate of the charge / discharge amount when the adjustment is not performed. .
- the adjustment unit adjusts the charge amount or the discharge amount so that the storage battery is neither charged nor discharged when the acquired frequency is equal to the reference frequency.
- the storage battery control device performs discharging without charging when the system frequency is lower than the reference frequency, and performs charging without discharging when the system frequency is higher than the reference frequency.
- the storage battery does not perform an operation (reversing operation) opposite to the charge / discharge performed for stabilizing the system frequency. Therefore, the storage battery control device can maintain the remaining amount of storage battery within an allowable range while performing frequency control more appropriately.
- the adjustment unit uses the frequency that the discharge amount set by the setting unit is larger than the frequency that matches the maximum value of the discharge amount that can be discharged by the storage battery as the first frequency.
- the discharge amount is adjusted by using, as the second frequency, a frequency smaller than the frequency at which the charge amount set by the setting unit matches the maximum value of the charge amount that can be charged by the storage battery.
- the storage battery control device on the side where the frequency is smaller than the dead band when the system frequency is smaller than the reference frequency, and on the side where the frequency is larger than the dead band when the system frequency is larger than the reference frequency.
- a frequency range where adjustment for reducing the charge / discharge amount is not performed is provided.
- the storage battery control apparatus can maintain the remaining amount of storage battery within an allowable range while performing frequency control more appropriately.
- the setting unit further determines (i) a maximum discharge amount that is a maximum value of a discharge amount that the storage battery can discharge, and (ii) the discharge amount indicated by the control function determines the maximum discharge amount. If it exceeds, the control function is set so that the maximum discharge amount is the discharge amount, the adjustment unit further, when the detected remaining charge amount is smaller than the lower limit value of the suitability range, An adjusted maximum discharge amount that is reduced from the maximum discharge amount according to the remaining charge amount is determined, and when the discharge amount indicated by the control function exceeds the adjusted maximum discharge amount, the determined adjusted maximum discharge amount is The discharge amount is adjusted so as to obtain a discharge amount.
- the storage battery control device can appropriately charge and discharge the storage battery in a range smaller than the adjusted maximum discharge amount determined according to the remaining charge. Thereby, a storage battery can be charged / discharged appropriately according to the amount of charge remaining.
- the adjustment unit calculates the adjusted maximum discharge amount by (the maximum discharge amount) ⁇ (the remaining charge amount) / (the lower limit value of the suitability range).
- the storage battery control device can quantitatively determine the adjusted maximum discharge amount according to the remaining charge amount.
- the maximum discharge amount is a rated capacity of an inverter that converts DC power output from the storage battery into AC power.
- the storage battery control device can adjust the discharge amount in consideration of the rated capacity of the inverter.
- the setting unit further determines (i) a maximum charge amount that is a maximum charge amount that the storage battery can charge, and (ii) the charge amount indicated by the control function indicates the maximum charge amount. If it exceeds, the control function is set so that the maximum charge amount is the charge amount, and the adjustment unit further, when the detected remaining charge amount is larger than the upper limit value of the suitability range, An adjusted maximum charge amount that is reduced according to the remaining charge amount is determined from the maximum charge amount, and the determined adjusted maximum charge amount is determined when the charge amount indicated by the control function exceeds the adjusted maximum charge amount. The charge amount is adjusted so as to obtain a charge amount.
- the storage battery control device can appropriately charge and discharge the storage battery in a range smaller than the adjusted maximum charge amount determined according to the remaining charge amount. Thereby, a storage battery can be charged / discharged appropriately according to the amount of charge remaining.
- the adjustment unit sets the adjusted maximum charge amount to (the maximum charge amount) ⁇ ⁇ (the full charge amount of the storage battery) ⁇ (the remaining charge amount) ⁇ / ⁇ (the full charge amount of the storage battery) ⁇ ( The upper limit value of the aptitude range is calculated.
- the storage battery control device can determine the adjustment maximum charge amount quantitatively according to the remaining charge amount.
- the maximum charge amount is a rated capacity of an inverter that converts AC power from the power system into DC power.
- the storage battery control device can adjust the charge amount in consideration of the rated capacity of the inverter.
- the second change rate is not less than 1/8 and not more than 1/4 of the first change rate.
- the storage battery control device can set the rate of change of the charge / discharge amount with respect to the system frequency in the dead band to be 1/8 or more and 1/4 or less of the value in the case of not being the dead band.
- the adjustment unit determines the second change rate based on the acquired history of the frequency and the detected history of the remaining charge.
- the storage battery control device determines the rate of change of the charge / discharge amount with respect to the system frequency in the dead zone based on the system frequency and the remaining charge history. Thereby, the result controlled by the storage battery control apparatus can be reflected in control of subsequent system frequency and charge remaining amount.
- the suitability range is a range of 45% or more and 55% or less of the remaining charge when the storage battery is fully charged.
- the storage battery control device can maintain the storage battery remaining amount within an allowable range while performing frequency control so that the storage battery maintains a remaining charge amount of 45% or more and 55% or less when fully charged. it can.
- the storage battery control method is a storage battery control method in a storage battery control device for controlling the frequency of the power system by charging and discharging the storage battery, and the frequency at which the frequency of the power system is acquired.
- a setting step that is set according to the setting, and an adjustment step that adjusts the charge amount or the discharge amount set in the setting step according to the acquired frequency and the detected remaining charge amount, and adjusted.
- the setting step when the amount is smaller than the lower limit value of the aptitude range and the acquired frequency is included in the first dead band from the first frequency smaller than the reference frequency to the reference frequency.
- the set charge amount is adjusted to decrease to a predetermined ratio, and the detected frequency is greater than the upper limit value of the aptitude range, and from the second frequency greater than the reference frequency to the reference frequency
- the discharge amount set in the setting step is adjusted to decrease to a predetermined rate.
- a storage battery control system includes a storage battery and the above storage battery control device for controlling the frequency of a power system by charging and discharging the storage battery.
- FIG. 1 is a system configuration diagram showing the configuration of the supply and demand control system according to the present embodiment.
- the supply and demand control system is a system for providing a supply and demand balance control service.
- supply / demand balance control for example, there is FR control for controlling power supply / demand based on the frequency of AC power in the power system.
- the supply and demand control system 1 includes a bid system 10, a storage battery control device 100, a storage battery 20, a DC / AC converter 30, and a frequency detection unit 40.
- the storage battery control device 100, the storage battery 20, the DC / AC converter 30, and the frequency detection unit 40 may be realized as one device, or may be realized as different devices. .
- the bidding system 10 bids bid information for the power trading market 2 in accordance with the operation by the service provider.
- the bid information includes, for example, a service providing period that is a period for providing a supply and demand control service using the storage battery 20, a control capability that is the maximum power used for the supply and demand control service in this service providing period, and a bid price. It is.
- the service provision period is a predetermined time period during which the service provider desires to provide a supply and demand control service. In the following description, the service provision period is also referred to as a supply and demand control period.
- the control capability is a value indicating the power that can be charged and discharged from the storage battery 20.
- the control capability is arbitrarily determined by the service provider with the maximum value of power that can be charged and discharged from the storage battery 20 as an upper limit.
- bid information is bid from each of a plurality of service providers in the power trading market 2.
- the bid price is set, for example, for the length of the service provision period ⁇ control ability.
- the price of the service depends on the amount of power secured for the supply and demand control service during the service provision period.
- the bid price is a price that the service provider obtains as a price for providing the service, and can be said to be a price for the supply and demand control service.
- the grid operation device 3 selects a bid information necessary for supply / demand control of the power system from among a plurality of bid information bid from the power trading market 2 through the bid system 10, and makes a successful bid.
- the storage battery 20 is a storage battery that is controlled by the storage battery control device 100 to charge or discharge power.
- the DC / AC converter 30 converts the DC power output from the storage battery 20 into AC power and outputs the AC power to the power system.
- the DC / AC converter 30 converts AC power input from the power system into DC power and inputs the DC power to the storage battery 20.
- the frequency detector 40 detects the number of system waves. Further, the frequency detection unit 40 outputs the detected grid frequency to the storage battery control device 100.
- the frequency detection unit 40 is realized by, for example, a power sensor.
- the storage battery control device 100 is a control device that performs charge / discharge control of the storage battery 20. Specifically, the storage battery control device 100 performs charge / discharge control of the storage battery 20 based on the system frequency acquired from the frequency detection unit 40 and the remaining charge of the storage battery 20. When the storage battery control device 100 determines that the storage battery 20 needs to be discharged, the storage battery control device 100 discharges the storage battery 20 to output power to the power system. Further, when it is determined that the storage battery 20 needs to be charged, the storage battery 20 is charged to acquire power from the power system.
- the supply and demand control system 1 may include a DC / DC converter or the like as necessary when the storage battery 20 is charged and discharged under charge / discharge control by the storage battery control device 100.
- the storage battery 20 and the storage battery control device 100 may be configured as one power storage system.
- the storage battery 20, the storage battery control apparatus 100, the frequency detection part 40, and the DC / AC converter 30 may be comprised as one electrical storage system.
- FIG. 2 is a functional block diagram of the storage battery control device according to the present embodiment.
- the storage battery control device 100 includes a remaining charge detection unit 101, a frequency acquisition unit 102, a gain adjustment unit 103, a charge / discharge amount setting unit 104, and a charge / discharge control unit 105. .
- the remaining charge detection unit 101 detects the remaining charge of the storage battery 20.
- the remaining charge is the electric power stored in the storage battery 20, and is an amount that increases when the electric power is charged and decreases when the electric power is discharged.
- the remaining charge is also referred to as SOC (State Of Charge).
- the frequency acquisition unit 102 acquires the system frequency. Specifically, the frequency acquisition unit 102 acquires the system frequency detected by the frequency detection unit 40 from the frequency detection unit 40.
- the frequency of AC power in the power system is controlled so as to maintain a predetermined frequency (also referred to as a reference frequency), but the supply of power from a power plant and the demand for power in a consumer, etc. It fluctuates due to fluctuations in the supply-demand balance.
- the frequency detection unit 40 periodically detects the system frequency (for example, every 1 second or every 4 seconds).
- the reference frequency is, for example, 50 Hz or 60 Hz. In the following description, the case where the reference frequency is 50 Hz will be described, but the same description holds even when the reference frequency is another value.
- the system frequency decreases, for example, 49.9 Hz or 49.8 Hz.
- the system frequency increases, for example, 50.1 Hz or 50.2 Hz.
- the charge / discharge amount setting unit 104 sets the charge amount or the discharge amount to be charged / discharged by the storage battery 20 in order to bring the system frequency close to the reference frequency according to the frequency acquired by the frequency acquisition unit 102. At this time, for example, the charge / discharge amount setting unit 104 sets the charge / discharge amount of the storage battery 20 based on a predetermined relationship between the system frequency and the charge / discharge amount of the storage battery 20.
- the charge / discharge amount setting unit 104 corresponds to a setting unit.
- the charge / discharge amount setting unit 104 controls the storage battery 20 so that the storage battery 20 is discharged when the system frequency is lower than the reference frequency. At this time, the greater the difference between the system frequency and the reference frequency, the greater the effect of maintaining the system frequency near the reference frequency when the storage battery 20 is discharged more.
- the storage battery 20 is controlled so that the storage battery 20 is charged. At that time, the greater the difference between the system frequency and the reference frequency, the greater the effect of maintaining the system frequency near the reference frequency when the storage battery 20 is charged more.
- the gain adjustment unit 103 adjusts the charge amount or discharge amount set by the charge / discharge amount setting unit 104 according to the frequency acquired by the frequency acquisition unit 102 and the remaining charge amount detected by the remaining charge detection unit 101. .
- the gain adjustment unit 103 is acquired in the first dead band from the first frequency to the reference frequency that is smaller than the lower limit value of the appropriate range and that is smaller than the lower limit value of the aptitude range.
- the charge amount set by the charge / discharge amount setting unit 104 is adjusted to decrease to a predetermined rate.
- charging / discharging The discharge amount set by the amount setting unit 104 is adjusted to decrease to a predetermined rate.
- the predetermined ratio is a ratio included in a range larger than 0 and smaller than 1.
- the gain adjusting unit 103 can use, as the first frequency, a frequency larger than the frequency at which the discharge amount set by the charge / discharge amount setting unit 104 matches the maximum value of the discharge amount that the storage battery 20 can discharge.
- the gain adjusting unit 103 can use a frequency smaller than the frequency at which the charge amount set by the charge / discharge amount setting unit 104 is equal to the maximum value of the charge amount that can be charged by the storage battery 20 as the second frequency. .
- the gain adjustment unit 103 adjusts the control range of charge / discharge by the storage battery 20 according to the remaining charge of the storage battery 20 detected by the remaining charge detection unit 101. Further, the gain adjustment unit 103 adjusts the relationship between the frequency acquired by the frequency acquisition unit 102 and the charge / discharge amount of the storage battery 20 in the adjusted control range. At that time, the gain adjusting unit 103 sets the dead zone (corresponding to the first and second dead zones described above) to achieve both frequency control and maintaining the remaining charge level within an allowable range. .
- the method for adjusting the control range and the method for adjusting the charge / discharge amount will be described in detail later.
- the amount of charge / discharge by the storage battery 20 is also referred to as gain.
- the charge / discharge control unit 105 performs control to charge / discharge the storage battery 20 based on the charge / discharge amount after the gain adjustment unit 103 has adjusted after the charge / discharge amount setting unit 104 has set.
- FIG. 3 is an explanatory diagram of setting and adjustment of the control range by the charge / discharge amount setting unit and the gain adjusting unit according to the present embodiment.
- Each of (a) to (c) in FIG. 3 shows the control range of the charge / discharge amount with respect to the fluctuation of the system frequency when the remaining charge is lower than the lower limit value of the suitability range (a). (B) and the case where the remaining charge is higher than the upper limit value of the suitability range (c).
- the charge / discharge amount setting unit 104 sets the control widths of the charge side portion and the discharge side portion of the control range equally ((b) of FIG. 3). For example, when the system frequency varies from the reference frequency to 50.2 Hz, the storage battery 20 charges a charge amount (for example, 20 kW) corresponding to 50.2 Hz. Further, when the system frequency varies from the reference frequency to 49.8 Hz, the storage battery 20 discharges a discharge amount (for example, 20 kW) corresponding to 49.8 Hz. In this case, the charge / discharge control range can be expressed as 20 kW to ⁇ 20 kW. Here, the charge amount is represented by a positive value, and the discharge amount is represented by a negative value. The same expression is used below.
- control width of the discharge side portion is also referred to as the maximum discharge amount
- control width of the charge side portion is also referred to as the maximum charge amount.
- the charge / discharge amount setting unit 104 sets the control function so that the maximum discharge amount is set as the discharge amount when the discharge amount indicated by the control function exceeds the maximum discharge amount.
- the charge / discharge amount setting unit 104 sets the control function so that the maximum charge amount is the charge amount when the charge amount indicated by the control function exceeds the maximum charge amount.
- the maximum discharge amount may be the rated capacity of the inverter that converts the DC power output from the storage battery 20 into AC power.
- the maximum charge amount may be the rated capacity of an inverter that converts AC power from the power system into DC power.
- the gain adjustment unit 103 adjusts the control range set by the charge / discharge amount setting unit 104 according to the remaining charge of the storage battery 20 as follows.
- the gain adjusting unit 103 maintains the control range set by the charge / discharge amount setting unit 104. In addition, even when maintaining the control range in this way, the expression that the control range is adjusted is used.
- the gain adjustment unit 103 adjusts the control range so as to reduce the control width of the discharge side portion as compared with the case of (b) ((a of FIG. 3 )). That is, when the detected remaining charge is smaller than the lower limit value of the aptitude range, the gain adjustment unit 103 determines the adjusted maximum discharge amount that is reduced from the maximum discharge amount according to the remaining charge, and the control function indicates When the discharge amount exceeds the adjusted maximum discharge amount, the discharge amount is adjusted so that the determined adjusted maximum discharge amount is set as the discharge amount.
- the storage battery 20 discharges a smaller discharge amount than in the case of (b).
- the control width of the discharge side portion after adjustment is also referred to as the adjusted maximum discharge amount.
- the gain adjusting unit 103 may calculate the adjusted maximum discharge amount by (Equation 1).
- the gain adjusting unit 103 adjusts the control range so as to reduce the control width on the charging side as compared with the case of (b) ((c) in FIG. 3). ). That is, when the detected remaining charge is larger than the upper limit value of the suitability range, the gain adjustment unit 103 determines an adjusted maximum charge amount that is reduced according to the remaining charge amount from the maximum charge amount, and the control function indicates When the charge amount exceeds the adjustment maximum charge amount, the charge amount is adjusted so that the determined adjustment maximum charge amount is the charge amount.
- the storage battery 20 is charged with a smaller charge amount than in the case of (b).
- the control width of the charge side portion after adjustment is also referred to as an adjustment maximum charge amount.
- the gain adjustment unit 103 may calculate the adjusted maximum charge amount by (Equation 2).
- the gain adjustment part 103 adjusts so that discharge amount may be decreased when the charge remaining amount of the storage battery 20 is lower than a suitable range, and the charge remaining amount of the storage battery 20 is higher than a suitable range. In such a case, the discharge amount is adjusted to increase. Thereby, it is possible to contribute to frequency control of the power system while bringing the remaining charge amount close to the appropriate range.
- the suitability range is a range determined in order to suppress deterioration of the storage battery 20. It is known that the storage battery is deteriorated quickly when charging / discharging in a fully charged state (or a state close to full charge) or a state in which the charge capacity is empty (or a state close to empty). Yes. Therefore, it is desirable that the storage battery take a state excluding the above state. Therefore, a state excluding the above state is set as an appropriate range of remaining charge.
- the suitability range is, for example, a range in which the remaining charge is 45% to 55% of the full charge.
- the upper limit value and the lower limit value of the suitability range are not limited to the above values, and may be 40% to 60%, for example.
- the upper limit value and the lower limit value of the aptitude range may be changed according to the type of the storage battery or the intended use.
- FIG. 4A is an explanatory diagram of the setting of the charge / discharge amount and the dead zone by the charge / discharge amount setting unit and the gain adjustment unit according to the present embodiment.
- Each of (a) to (c) of FIG. 4A shows the relationship between the system frequency and the charge / discharge amount of the storage battery 20 when the remaining charge is lower than the lower limit value of the suitability range (a). (B) and the case where the remaining charge amount is higher than the upper limit value of the suitability range (c).
- the charge / discharge amount setting unit 104 sets the charge amount or the discharge amount with respect to the system frequency as shown in (b) of FIG. 4A. Specifically, the charge / discharge amount setting unit 104 sets a control function in which the charge amount or the discharge amount linearly changes at a predetermined change rate (first change rate) with respect to changes in the system frequency. In the control function, when the charge amount or the discharge amount exceeds the control width on the charge side or the discharge side, respectively, the maximum value that falls within the control width on the charge side or the discharge side is taken. In the control function, when the system frequency is equal to the reference frequency, the charge / discharge amount is set to zero so that the storage battery 20 is neither charged nor discharged. Note that the rate of change is the slope of the graph shown in FIG.
- the gain adjustment unit 103 adjusts the charge amount or the discharge amount set by the charge / discharge amount setting unit 104 according to the remaining charge amount of the storage battery 20 as follows.
- the gain adjustment unit 103 maintains the charge amount and discharge amount set by the charge / discharge amount setting unit 104.
- the gain adjustment unit 103 adjusts the charge amount or the discharge amount with respect to the system frequency as shown in (a) of FIG. 4A. Specifically, the gain adjustment unit 103 provides a dead zone (first dead zone) in a portion including a frequency lower than the reference frequency based on the control function shown in FIG. 4A (b). The gain adjusting unit 103 sets the change rate of the discharge amount with respect to the change of the system frequency in the dead zone to the second change rate that is a lower change rate than in the case of (b).
- the gain adjusting unit 103 maintains (does not change) the rate of change of the discharge amount with respect to the change of the system frequency at a frequency not included in the dead zone.
- the second change rate is 1/8 of the first change rate.
- the second change rate may be a value included in a range of 1/8 to 1/4 of the first change rate.
- the second change rate may be set within a range smaller than zero and larger than -1.
- the second rate of change may be determined based on a system frequency history and a remaining charge history. For example, by setting the second rate of change to a certain value and performing storage battery control by the storage battery control device 100 for a predetermined time, the history of changes in the system frequency history and the history of changes in the remaining charge amount within the predetermined time are The second rate of change may be increased or decreased as desired.
- the second rate of change may be increased or decreased so that the system frequency within the predetermined time is maintained near the reference frequency for a longer time. Further, the second change rate may be increased or decreased so that the remaining charge amount within the predetermined time is maintained within the appropriate range for a longer time.
- the gain adjustment unit 103 adjusts the charge amount or the discharge amount with respect to the system frequency as shown in (c) of FIG. 4A. Specifically, the gain adjustment unit 103 provides a dead zone (second dead zone) in a portion including a frequency higher than the reference frequency based on the control function shown in FIG. 4A (b). In the dead zone, the change rate of the discharge amount with respect to the change of the system frequency is set to the second change rate which is a lower change rate than in the case of (b). That is, when the system frequency is in the dead band, the amount of change in the charge amount of the storage battery 20 with respect to the change in the system frequency is suppressed as compared to the case where the system frequency is not. Further, the gain adjustment unit 103 maintains (does not change) the rate of change of the charge amount with respect to the change of the system frequency in the frequency not included in the dead zone.
- FIG. 4B is a detailed explanatory diagram of setting a dead zone in the gain adjustment unit according to the present embodiment. Specifically, FIG. 4B is an explanatory diagram of setting the dead zone when the remaining charge is lower than the lower limit value of the appropriate range.
- a straight line 421 and a straight line 422 are straight lines indicating the discharge amount set by the charge / discharge amount setting unit 104.
- the gain adjusting unit 103 adjusts the control range so as to reduce the control width on the discharge side as described above when the remaining charge is lower than the lower limit value of the appropriate range.
- a straight line 431 and a straight line 432 are obtained by shifting the straight line 421 and the straight line 422 in the charging direction (downward on the paper surface) by the amount by which the control width is reduced.
- the gain adjustment unit 103 changes the discharge amount when the discharge amount is changed at the second rate of change from the point (origin) indicating the charge / discharge amount when the system frequency is the reference frequency in the direction of lower frequency.
- a straight line to be shown is drawn, and a line segment 433 of the portion from the origin to the intersection 434 between the straight line and the straight line 431 is obtained.
- the gain adjusting unit 103 sets a frequency range corresponding to the line segment 433 as a dead zone. Then, the discharge side portion of the control function is changed to a line segment 433, a line segment corresponding to a frequency lower than the intersection point 434 of the straight line 431, and a line segment 432.
- the gain adjusting unit 103 adjusts the control function so as to include the dead zone when the remaining charge is lower than the lower limit value of the appropriate range.
- the gain adjustment unit 103 similarly includes the dead zone by flipping the operation related to the graph shown in FIG. 4B horizontally and vertically. Adjust the control function.
- FIG. 5 is an explanatory diagram of the charge / discharge amount in the charge / discharge control unit according to the present embodiment.
- Each of (a) to (c) of FIG. 5 shows the charge / discharge amount control range and dead band with respect to system frequency fluctuation when the remaining charge is lower than the lower limit value of the suitability range (a).
- a case (b) within the range and a case (c) where the remaining charge amount is higher than the upper limit value of the suitability range are shown.
- Each of (a) to (c) in FIG. 5 is obtained by adding the relationship between the system frequency in the control range and the charge / discharge amount of the storage battery to each of (a) to (c) in FIG. It is.
- the storage battery 20 When the remaining charge is within the appropriate range ((b) of FIG. 5), the storage battery 20 is discharged when the system frequency is lower than the reference frequency. Further, when the system frequency is lower than the reference frequency, the storage battery 20 is discharged. Further, when the system frequency is equal to the reference frequency, the storage battery 20 does not discharge or charge.
- the gain adjusting unit 103 compares the remaining charge within the appropriate range ((b) in FIG. 5).
- the control range is adjusted to reduce the control width on the discharge side.
- the gain adjusting unit 103 provides a dead zone in a portion where the system frequency is close to the reference frequency on the discharge side.
- the charge amount is maintained when the remaining charge amount is within the appropriate range ((b) in FIG. 5).
- the gain adjusting unit 103 compares the remaining charge within the appropriate range ((b) in FIG. 5).
- the control range is adjusted to reduce the control width on the charging side.
- the gain adjusting unit 103 provides a dead zone in a portion where the system frequency is close to the reference frequency on the charging side.
- the discharge amount is maintained when the remaining charge amount is within the appropriate range ((b) of FIG. 5).
- FIG. 6 is a flowchart of charge / discharge amount setting and adjustment processing in the storage battery control device according to the present embodiment.
- step S601 the remaining charge detection unit 101 detects the remaining charge of the storage battery 20.
- step S602 the frequency acquisition unit 102 acquires the system frequency from the frequency detection unit 40.
- step S603 the charge / discharge amount setting unit 104 sets the charge / discharge amount and control range of the storage battery 20.
- the method for setting the charge / discharge amount and the control range of the storage battery 20 by the charge / discharge amount setting unit 104 is as described with reference to (b) of FIG. 3 and (b) of FIG. 4A.
- step S604 the gain adjustment unit 103 adjusts the control range of the storage battery 20 based on the remaining charge detected by the remaining charge detection unit 101 in step S601.
- the adjustment method of the control range of the storage battery 20 by the gain adjustment unit 103 is as described with reference to FIGS.
- step S604 the gain adjustment unit 103 sets a dead zone within the control range of the storage battery 20.
- the dead zone setting method by the gain adjusting unit 103 is as described with reference to FIGS. 4A and 4B.
- step S606 the charging / discharging control unit 105 controls charging / discharging by the storage battery 20.
- FIG. 7 is a flowchart of gain adjustment processing in the gain adjustment unit according to the present embodiment. Specifically, FIG. 7 is a flowchart showing in detail the process in step S603 of FIG.
- step S701 the gain adjustment unit 103 determines whether the remaining charge detected by the remaining charge detection unit 101 in step S601 is within the suitability range, lower than the lower limit value of the suitability range, or the upper limit value of the suitability range. Determine if greater than. Then, if the remaining charge is within the appropriate range, the processing after step S711 is executed. When the remaining charge is lower than the lower limit value of the suitability range, the processes after step S721 are executed. When the remaining charge is higher than the upper limit value of the aptitude range, the processing after step S731 is executed.
- step S711 the gain adjustment unit 103 sets a dead zone on the discharge side in the control range of the storage battery 20.
- step S712 the gain adjustment unit 103 sets the rate of change of the discharge amount in the dead zone set in step S711. This terminates the process when the remaining charge is lower than the lower limit value of the appropriate range.
- step S721 the gain adjusting unit 103 performs adjustment so as to maintain a charge / discharge amount having a single change rate (first change rate). This completes the process when the remaining charge is within the appropriate range.
- step S731 the gain adjustment unit 103 sets a dead zone on the charging side in the control range of the storage battery 20.
- step S732 the gain adjusting unit 103 sets the rate of change of the charge amount in the dead zone set in step S731. This terminates the process when the remaining charge is higher than the upper limit value of the suitability range.
- the storage battery control device of the present embodiment when the charge / discharge amount of the storage battery deviates from the appropriate range, and when the difference from the reference frequency of the system frequency is relatively small, the storage battery Control is performed to reduce the amount of charge and discharge caused by. Thereby, it can contribute to stabilization of a system
- FIG. 8 is a configuration diagram of the entire system including the storage battery control device according to the second embodiment.
- the supply and demand control system 1 ⁇ / b> A includes a bid system 10, a storage battery control device 100 ⁇ / b> A, a storage battery 20, and a DC / AC converter 30.
- the supply and demand control system 1A is different from the supply and demand control system 1A according to the first embodiment in that it does not include a frequency detection unit.
- the grid operation device 3A selects a bid information necessary for supply / demand control of the power system from a plurality of bid information bid from the power trading market 2 through the bid system 10, and makes a successful bid. Further, the system operation device 3A includes a frequency detection unit and the like. The detailed configuration of the system operation device 3A will be described separately.
- the storage battery control device 100 ⁇ / b> A is a control device that performs charge / discharge control of the storage battery 20. Specifically, the storage battery control device 100 performs charge / discharge control of the storage battery 20 based on the remaining charge amount of the storage battery 20 and the relationship between the system frequency and the charge / discharge amount received from the system operation device 3A.
- FIG. 9 is a functional block diagram of the storage battery control device according to the present embodiment.
- the system operation device 3A includes a frequency detection unit 41 and a charge / discharge amount setting unit 104A.
- the storage battery control device 100 ⁇ / b> A includes a remaining charge detection unit 101, a gain adjustment unit 103, a charge / discharge amount adjustment unit 104 ⁇ / b> B, and a charge / discharge control unit 105.
- the frequency detection unit 41 detects the system frequency and outputs the detected system frequency to the charge / discharge amount setting unit 104A.
- the charge / discharge amount setting unit 104A sets the charge amount or discharge amount to be charged / discharged to the storage battery 20 in order to bring the system frequency close to the reference frequency according to the frequency acquired by the frequency detection unit 41.
- the charge / discharge amount setting unit 104A transmits the set charge amount or discharge amount to the storage battery control device 100A. Specifically, the charging amount or discharging amount shown in FIG. 3B and FIG. 4B in Embodiment 1 is set.
- the charge / discharge amount adjustment unit 104B adjusts the charge / discharge amount of the storage battery 20 based on the relationship between the system frequency and the charge amount / discharge amount received from the system operation device 3A (charge / discharge amount setting unit 104A). Specifically, similarly to the above, the gain adjustment unit 103 receives the relationship between the system frequency and the charge amount or the discharge amount, and (a) or (c) in FIG. Adjustment is performed as in (a) or (c).
- the charge / discharge amount adjustment unit 104 ⁇ / b> B adjusts the charge / discharge amount of the storage battery 20 based on the charge / discharge amount after the adjustment of the gain adjustment unit 103.
- the storage battery 20 is based on the information acquired from the system operation device 3A as in the first embodiment. Can be controlled.
- the plurality of storage batteries 20 can be controlled using the system frequency detected by the system operator.
- a plurality of supply and demand control systems 1A are installed for one system operation device.
- one system operation device 3 ⁇ / b> A can detect the system frequency and control the plurality of storage batteries 20 using the detected system frequency value. Therefore, there is an advantage that the same control can be performed at a lower cost than in the case where each supply / demand control system 1A has a frequency detection unit.
- the storage battery control device may be implemented as a server.
- the control part which controls charging / discharging based on the command value sent from a control apparatus to the storage battery side is provided.
- control device and the storage battery may be one power storage system, and the FR command value may be received directly from the system operation device (without going through a server or the like).
- each component may be configured by dedicated hardware or may be realized by executing a software program suitable for each component.
- Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.
- the software for realizing the storage battery control device of each of the above embodiments is a program as follows.
- the program is a storage battery control method in a storage battery control device for controlling the frequency of the power system by charging and discharging the storage battery to a computer, the frequency acquisition step of acquiring the frequency of the power system, A remaining charge detection step for detecting the remaining charge of the storage battery, and a setting for setting the charge amount or discharge amount to be charged / discharged to the storage battery in order to bring the frequency of the power system close to the reference frequency according to the acquired frequency
- An adjustment step of adjusting the charge amount or the discharge amount set in the setting step in accordance with the acquired frequency and the detected remaining charge amount, and the adjusted charge amount or the A storage battery control step of charging and discharging the storage battery based on a discharge amount, and in the adjustment step, the detected charging
- the setting step when the amount is smaller than the lower limit value of the aptitude range and the acquired frequency is included in the first dead band from the first frequency smaller than the reference frequency to the reference frequency.
- the set charge amount is adjusted to decrease to a predetermined ratio, and the detected frequency is greater than the upper limit value of the aptitude range, and from the second frequency greater than the reference frequency to the reference frequency When the acquired frequency is included in the second dead zone until, the storage battery control method for adjusting the discharge amount set in the setting step so as to decrease to a predetermined ratio is executed.
- the present invention can be used for a storage battery control device that maintains the remaining amount of storage battery within an allowable range while appropriately performing frequency control.
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Abstract
Description
本発明者は、「背景技術」の欄において記載した、蓄電池制御装置に関し、以下の問題が生じることを見出した。
図1は、本実施の形態に係る需給制御システムの構成を示すシステム構成図である。
・・・(式1)
・・・(式2)
本実施の形態において、系統運用者が系統周波数を検出し、検出された系統周波数に基づいて蓄電池の充放電量を制御する蓄電池制御装置などについて説明する。
2 電力取引市場
3、3A 系統運用装置
10 入札システム
20 蓄電池
30 DC/ACコンバータ
40、41 周波数検出部
100、100A 蓄電池制御装置
101 充電残量検出部
102 周波数取得部
103 ゲイン調整部
104、104A 充放電量設定部
104B 充放電量調整部
105 充放電制御部
Claims (16)
- 蓄電池を充放電させることで電力系統の周波数を制御するための蓄電池制御装置であって、
前記電力系統の周波数を取得する周波数取得部と、
前記蓄電池の充電残量を検出する充電残量検出部と、
電力系統の周波数を基準周波数に近づけるために前記蓄電池に充放電させる充電量又は放電量を、取得された前記周波数に応じて設定する設定部と、
前記設定部が設定した前記充電量又は前記放電量を、取得された前記周波数と、検出された前記充電残量とに応じて調整する調整部と、
調整された前記充電量又は前記放電量に基づいて前記蓄電池を充放電させる充放電制御部とを備え、
前記調整部は、
検出された前記充電残量が適性範囲の下限値より小さい場合であって、かつ、前記基準周波数より小さい第一周波数から前記基準周波数までの第一不感帯に、取得された前記周波数が含まれる場合に、前記設定部が設定した前記充電量を所定の割合まで減少させるように調整し、
検出された前記周波数が前記適性範囲の上限値より大きい場合であって、かつ、前記基準周波数より大きい第二周波数から前記基準周波数までの第二不感帯に、取得された前記周波数が含まれる場合に、前記設定部が設定した前記放電量を所定の割合まで減少させるように調整する
蓄電池制御装置。 - 前記設定部は、
検出された前記周波数に対する、前記蓄電池の充電量又は放電量を示す制御関数であって、前記周波数の変化に対して充電量又は放電量が第一変化率で線形変化することを示す制御関数を設定することで、前記充電量又は前記放電量を設定し、
前記調整部は、
前記制御関数が示す、前記第一不感帯又は前記第二不感帯における前記充電量又は前記放電量の変化率を前記第一変化率より小さい第二変化率に変更することで、前記充電量又は前記放電量を調整する
請求項1に記載の蓄電池制御装置。 - 前記調整部は、
前記制御関数が示す、前記第一不感帯及び前記第二不感帯のいずれにも含まれない周波数において、前記充電量又は前記放電量の変化率を前記第一変化率に維持するように、前記充電量又は前記放電量を調整する
請求項2に記載の蓄電池制御装置。 - 前記調整部は、
取得された前記周波数が前記基準周波数に等しい場合に、前記蓄電池に充電も放電もさせないように、前記充電量又は前記放電量を調整する
請求項1~3のいずれか1項に記載の蓄電池制御装置。 - 前記調整部は、
前記設定部が設定する前記放電量が、前記蓄電池が放電可能である放電量の最大値に一致する周波数より大きい周波数を、前記第一周波数として用いて前記放電量を調整し、
前記設定部が設定する前記充電量が、前記蓄電池が充電可能である充電量の最大値に一致する周波数より小さい周波数を、前記第二周波数として用いて前記放電量を調整する
請求項1~4のいずれか1項に記載の蓄電池制御装置。 - 前記設定部は、さらに、
(i)前記蓄電池が放電可能である放電量の最大値である最大放電量を決定し、(ii)前記制御関数が示す前記放電量が前記最大放電量を超える場合に、前記最大放電量を前記放電量とするように前記制御関数を設定し、
前記調整部は、さらに、
検出された前記充電残量が前記適性範囲の下限値より小さい場合には、前記最大放電量から前記充電残量に応じて小さくした調整最大放電量を決定し、前記制御関数が示す前記放電量が前記調整最大放電量を超える場合に、決定した前記調整最大放電量を前記放電量とするように、前記放電量を調整する
請求項2又は3に記載の蓄電池制御装置。 - 前記調整部は、前記調整最大放電量を、
(前記最大放電量)×(前記充電残量)/(前記適性範囲の下限値)
により算出する
請求項6に記載の蓄電池制御装置。 - 前記最大放電量は、前記蓄電池が出力する直流電力を交流電力に変換するインバータの定格容量である
請求項6又は7に記載の蓄電池制御装置。 - 前記設定部は、さらに、
(i)前記蓄電池が充電可能である充電量の最大値である最大充電量を決定し、(ii)前記制御関数が示す前記充電量が前記最大充電量を超える場合に、前記最大充電量を前記充電量とするように前記制御関数を設定し、
前記調整部は、さらに、
検出された前記充電残量が前記適性範囲の上限値より大きい場合には、前記最大充電量から前記充電残量に応じて小さくした調整最大充電量を決定し、前記制御関数が示す前記充電量が前記調整最大充電量を超える場合に、決定した前記調整最大充電量を前記充電量とするように、前記充電量を調整する
請求項2又は3に記載の蓄電池制御装置。 - 前記調整部は、前記調整最大充電量を、
(前記最大充電量)×{(前記蓄電池の満充電量)-(前記充電残量)}/{(前記蓄電池の満充電量)-(前記適性範囲の上限値)}
により算出する
請求項9に記載の蓄電池制御装置。 - 前記最大充電量は、電力系統からの交流電力を直流電力に変換するインバータの定格容量である
請求項9又は10に記載の蓄電池制御装置。 - 前記第二変化率は、前記第一変化率の1/8以上、1/4以下である
請求項2に記載の蓄電池制御装置。 - 前記調整部は、
取得された前記周波数の履歴と、検出された前記充電残量の履歴とに基づいて前記第二変化率を定める
請求項12に記載の蓄電池制御装置。 - 前記適性範囲は、前記蓄電池の満充電時の充電残量の45%以上、55%以下の範囲である
請求項1~13のいずれか1項に記載の蓄電池制御装置。 - 蓄電池を充放電させることで電力系統の周波数を制御するための蓄電池制御装置における蓄電池制御方法であって、
前記電力系統の周波数を取得する周波数取得ステップと、
前記蓄電池の充電残量を検出する充電残量検出ステップと、
電力系統の周波数を基準周波数に近づけるために前記蓄電池に充放電させる充電量又は放電量を、取得された前記周波数に応じて設定する設定ステップと、
前記設定ステップで設定した前記充電量又は前記放電量を、取得された前記周波数と、検出された前記充電残量とに応じて調整する調整ステップと、
調整された前記充電量又は前記放電量に基づいて前記蓄電池を充放電させる蓄電池制御ステップとを含み、
前記調整ステップでは、
検出された前記充電残量が適性範囲の下限値より小さい場合であって、かつ、前記基準周波数より小さい第一周波数から前記基準周波数までの第一不感帯に、取得された前記周波数が含まれる場合に、前記設定ステップで設定した前記充電量を所定の割合まで減少させるように調整し、
検出された前記周波数が前記適性範囲の上限値より大きい場合であって、かつ、前記基準周波数より大きい第二周波数から前記基準周波数までの第二不感帯に、取得された前記周波数が含まれる場合に、前記設定ステップで設定した前記放電量を所定の割合まで減少させるように調整する
蓄電池制御方法。 - 蓄電池と、
前記蓄電池を充放電させることで電力系統の周波数を制御するための請求項1~14のいずれか1項に記載の蓄電池制御装置とを備える
蓄電池制御システム。
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---|---|---|---|---|
JP2016149928A (ja) * | 2015-02-11 | 2016-08-18 | エルエス産電株式会社Lsis Co., Ltd. | エネルギー貯蔵システム |
KR101963847B1 (ko) * | 2018-11-29 | 2019-04-01 | 주식회사 아이온커뮤니케이션즈 | 주파수 조정 이벤트 시뮬레이션 방법 및 주파수 조정 이벤트 시뮬레이션 서버 |
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JP2015154593A (ja) * | 2014-02-14 | 2015-08-24 | ソニー株式会社 | 充放電制御装置、電池パック、電子機器、電動車両および充放電制御方法 |
JP6281817B2 (ja) * | 2014-03-14 | 2018-02-21 | パナソニックIpマネジメント株式会社 | 需給制御方法、および、需給制御装置 |
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WO2018079815A1 (ja) | 2016-10-31 | 2018-05-03 | 京セラ株式会社 | 電力管理方法、電力管理サーバ、ローカル制御装置及び電力管理システム |
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GB201903895D0 (en) * | 2019-03-21 | 2019-05-08 | Univ Birmingham | Energy system control |
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JP7191873B2 (ja) * | 2020-01-17 | 2022-12-19 | 株式会社東芝 | 充放電制御装置、充放電システム、充放電制御方法及び充放電制御プログラム |
EP4009471A1 (en) * | 2020-12-04 | 2022-06-08 | Total Renewables | Method for managing a battery |
WO2022169980A1 (en) * | 2021-02-05 | 2022-08-11 | Sion Power Corporation | Charge/discharge management in electrochemical cells, including partial cycle control |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013046656A1 (ja) * | 2011-09-27 | 2013-04-04 | 三洋電機株式会社 | 充放電システム |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4155674B2 (ja) | 1999-07-22 | 2008-09-24 | 関西電力株式会社 | 二次電池を含む電力系統の周波数制御装置 |
EP1993183B1 (en) * | 2006-02-15 | 2016-04-06 | Mitsubishi Denki Kabushiki Kaisha | Power system stabilizing system |
JP2011200084A (ja) | 2010-03-23 | 2011-10-06 | Toshiba Corp | 二次電池制御装置、二次電池制御方法、およびプログラム |
JP2012143018A (ja) * | 2010-12-28 | 2012-07-26 | Kawasaki Heavy Ind Ltd | 系統安定化装置および系統安定化方法 |
JP5843956B2 (ja) * | 2012-03-19 | 2016-01-13 | 三菱電機株式会社 | 系統安定化装置 |
CN106030450B (zh) * | 2013-12-31 | 2019-06-14 | 施耐德电气It公司 | 控制微电网 |
-
2014
- 2014-03-14 WO PCT/JP2014/001463 patent/WO2015136575A1/ja active Application Filing
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013046656A1 (ja) * | 2011-09-27 | 2013-04-04 | 三洋電機株式会社 | 充放電システム |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2016149928A (ja) * | 2015-02-11 | 2016-08-18 | エルエス産電株式会社Lsis Co., Ltd. | エネルギー貯蔵システム |
US9806525B2 (en) | 2015-02-11 | 2017-10-31 | Lsis Co., Ltd. | Energy storage system |
KR101963847B1 (ko) * | 2018-11-29 | 2019-04-01 | 주식회사 아이온커뮤니케이션즈 | 주파수 조정 이벤트 시뮬레이션 방법 및 주파수 조정 이벤트 시뮬레이션 서버 |
WO2020111466A1 (ko) * | 2018-11-29 | 2020-06-04 | 주식회사 아이온커뮤니케이션즈 | 주파수 조정 이벤트 시뮬레이션 방법 및 주파수 조정 이벤트 시뮬레이션 서버 |
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JP5957775B2 (ja) | 2016-07-27 |
JPWO2015136575A1 (ja) | 2017-04-06 |
US20160352114A1 (en) | 2016-12-01 |
US9685799B2 (en) | 2017-06-20 |
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