WO2015033461A1 - 運転計画生成装置、運転計画生成方法、運転計画生成プログラムおよび蓄電池システム - Google Patents
運転計画生成装置、運転計画生成方法、運転計画生成プログラムおよび蓄電池システム Download PDFInfo
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- 238000003860 storage Methods 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims description 75
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- 238000010248 power generation Methods 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims description 50
- 238000001514 detection method Methods 0.000 claims description 20
- 238000012937 correction Methods 0.000 description 123
- 230000000737 periodic effect Effects 0.000 description 86
- 238000012423 maintenance Methods 0.000 description 59
- 230000005855 radiation Effects 0.000 description 58
- 238000012544 monitoring process Methods 0.000 description 30
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- 230000004044 response Effects 0.000 description 20
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- 238000004364 calculation method Methods 0.000 description 6
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- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- 238000000611 regression analysis Methods 0.000 description 1
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Definitions
- the present invention relates to an operation plan generation device, an operation plan generation method, an operation plan generation program, and a storage battery system.
- the load leveling effect can be achieved by cutting the peak of the power supply from solar power generation (hereinafter referred to as “insufficient power”) to the power demand (peak cut). (Hereinafter referred to as “peak cut control method”).
- FIG. 1 is a diagram for explaining a peak cut control method.
- the horizontal axis is time, and the vertical axis is power value.
- the solid line graph shows the transition of the insufficient power.
- the broken line graph shows the insufficient power that is cut by the peak cut control method.
- the storage battery is discharged, and the insufficient power is controlled to be equal to or less than the discharge target value. Therefore, if the discharge target value is set low, the peak can be lowered. However, since the capacity of the storage battery is limited, if the discharge target value is simply set low, the remaining capacity of the storage battery becomes insufficient during operation. Therefore, an appropriate value needs to be set as the discharge target value. Therefore, the setting of the discharge target value is performed based on, for example, prediction of the weather the day before or several hours ago.
- the discharge target value is appropriately corrected in the operation process. For example, if the forecast of weather, etc. on the previous day or several hours is off on the current day or at the current time, the discharge target value set based on the prediction on the previous day or several hours in advance will be A method to correct it has been tried in several demonstration experiments, and its effect has been confirmed. Even when the prediction on the previous day or several hours ago is off, it is possible to suppress an increase in the discharge amount from the unplanned storage battery by appropriately correcting the discharge target value based on a more accurate prediction. .
- the information referred to when the discharge target value is corrected is a temporary change from the overall daily operation. Corrections that were not appropriate for weather fluctuations could be made.
- the discharge target value can be set low. This is because an increase in the amount of discharge from the storage battery can be suppressed even if the discharge target value is set low if the supply power from solar power generation increases.
- the weather recovery is temporary, the power supplied from the photovoltaic power generation is reduced, so that the discharge amount from the storage battery is increased based on the discharge target value set low.
- unnecessary discharge occurs at a timing when the discharge should not be performed.
- the remaining amount of the storage battery is reduced by an amount corresponding to unnecessary discharge, and the peak cut effect thereafter is deteriorated. That is, in this case, as a result, the discharge target value should not be lowered.
- the discharge is not performed at the timing that should have been discharged. That is, in this case, as a result, the discharge target value should not be increased. This is because the peak may have been lowered as a result unless the discharge target value is increased.
- an object of one aspect is to mitigate the influence of sudden changes in weather on the effect of peak cuts due to the shortage of power supplied from solar power generation.
- an operation plan generation that generates the operation plan of an operation device that gives an instruction based on an operation plan to a control device that controls a storage battery that is discharged when a shortage of supply power of solar power generation exceeds a threshold value
- the apparatus acquires sunshine information indicating a sunshine situation, a first acquisition unit that acquires the remaining amount of the storage battery via the control device, and a predetermined change in the sunshine information within a predetermined time from the current time.
- a storage unit for storing the threshold candidates in association with a combination of a detection unit to detect, a remaining amount of the storage battery, the sunshine information, and a time at which the sunshine information was observed;
- a first threshold candidate corresponding to a combination of a first time at which a change in the first time is detected, first sunshine information at the first time, and a remaining amount of the storage battery at the first time;
- the first From the storage unit a second threshold candidate corresponding to a combination of the second sunshine information at the second time more than the predetermined time before the time and the remaining amount of the storage battery at the second time is stored in the storage unit.
- the first acquisition unit acquires the second acquisition unit to be acquired, and the first threshold candidate and the second threshold candidate acquired by the second acquisition unit.
- It has the selection part selected as a threshold value after a change according to the residual amount of a storage battery, and the reflection part which reflects the threshold value after a change which the said selection part selected in the said operation plan, It is characterized by the above-mentioned.
- FIG. It is a flowchart for demonstrating an example of the process sequence of an abort threshold value calculation process. It is a flowchart for demonstrating an example of the process sequence of a target value selection process.
- FIG. 2 is a diagram showing an example of a system configuration in the embodiment of the present invention.
- the operation device 10 is connected to the operation plan creation device 20 via a network.
- the operation plan creation device 20 is one or more computers that create an operation plan database (hereinafter referred to as “operation plan DB 60”).
- the operation plan DB 60 is a set of operation plan candidates with application conditions.
- the operation plan refers to a combination of one or more control parameter values that define the operation of the storage battery 40.
- the control parameter is a parameter set in the control device 30.
- the power value (hereinafter referred to as the power value) , Referred to as “discharge target value”) is a control parameter, that is, an operation plan.
- discharge power the shortage of power supplied from solar power generation
- the insufficient power may be power purchased from an electric power company.
- the application condition refers to information for specifying a situation to which the operation plan should be applied.
- the operation status is monitored at regular time intervals, and when the operation plan (discharge target value) is corrected according to the amount of solar radiation and the remaining amount of the storage battery 40, it is determined whether the operation plan needs to be corrected.
- the combination of the time to be irradiated, the amount of solar radiation, and the remaining amount of the storage battery 40 is an applicable condition.
- the method for creating the operation plan DB 60 is not limited to a specific method.
- the operating device 10 is one or more computers that output a control command for the charge / discharge operation of the storage battery 40 to the control device 30 based on the operation plan DB 60.
- the driving device 10 selects, for example, an operation plan provided with an application condition that matches a combination of the time at that time, the amount of solar radiation, and the remaining amount of the storage battery 40 at regular time intervals.
- the operation device 10 outputs a control command corresponding to the selected operation plan to the control device 30.
- the control device 30 is a device that controls charging / discharging of the storage battery 40 in accordance with a control command from the operation device 10.
- the operation plan creation device 20, the operation device 10, and the control device 30 may be realized by a single computer.
- FIG. 3 is a diagram illustrating a hardware configuration example of the operating device according to the embodiment of the present invention.
- 3 includes a drive device 100, an auxiliary storage device 102, a memory device 103, a CPU 104, an interface device 105, and the like that are mutually connected by a bus B.
- a program that realizes processing in the operating device 10 is provided by the recording medium 101.
- the recording medium 101 on which the program is recorded is set in the drive device 100, the program is installed from the recording medium 101 to the auxiliary storage device 102 via the drive device 100.
- the program need not be installed from the recording medium 101 and may be downloaded from another computer via a network.
- the auxiliary storage device 102 stores the installed program and also stores necessary files and data.
- the memory device 103 reads the program from the auxiliary storage device 102 and stores it when there is an instruction to start the program.
- the CPU 104 executes a function related to the driving device 10 in accordance with a program stored in the memory device 103.
- the interface device 105 is used as an interface for connecting to a network.
- An example of the recording medium 101 is a portable recording medium such as a CD-ROM, a DVD disk, or a USB memory.
- a portable recording medium such as a CD-ROM, a DVD disk, or a USB memory.
- an HDD Hard Disk Disk Drive
- flash memory or the like can be given. Both the recording medium 101 and the auxiliary storage device 102 correspond to computer-readable recording media.
- the driving device 10 corrects or changes the value of the control parameter at regular intervals (periodically) in accordance with the operation plan DB 60 in normal times (state in which the weather does not change suddenly).
- periodic correction such correction or change of the operation plan
- period the certain interval
- periodic correction time the time at which the periodic correction is performed
- control parameter after correction in the periodic correction is hereinafter referred to as “correction target value”.
- the driving device 10 detects a sudden change in the weather within the period of the regular correction cycle, the sudden change in the weather is a temporary phenomenon, and the situation of returning to the weather before the sudden change in a short period of time and the state after the sudden change continue.
- the operation plan is determined in consideration of both the situation and the situation. Specifically, the driving device 10 specifies the discharge target value corresponding to each situation based on the record of the operation plan DB 60 corresponding to the last periodic correction time before detection of a sudden change in weather. Therefore, two discharge target values are specified. Of the two discharge target values, the discharge target value at which a relatively high effect can be expected for peak cut is hereinafter referred to as an “ideal target value”.
- the discharge target value at which a relatively low effect can be expected for peak cut is hereinafter referred to as “maintenance target value”.
- the ideal target value is a discharge target value at which the discharge amount from the storage battery 40 becomes relatively large
- the maintenance target value is a discharge target value at which the discharge amount from the storage battery 40 becomes relatively small.
- the operating device 10 records the remaining amount of the storage battery 40 (hereinafter referred to as “canceling threshold”) necessary for enabling operation based on the maintenance target value in the operation plan DB 60 corresponding to the next periodic correction time. Determine based on.
- the operation device 10 performs the operation based on the ideal target value as long as the remaining amount of the storage battery 40 is larger than the abort threshold value, and the operation based on the maintenance target value is performed when the remaining amount of the storage battery 40 becomes equal to or less than the abort threshold value.
- the ideal target value is adopted as much as possible because the ideal target value is more likely to reduce the peak of the shortage power.
- the sudden change in weather is a temporary phenomenon, and either the discharge target value corresponding to the situation where the weather returns to the weather before the sudden change in a short period of time or the discharge target value corresponding to the situation where the state after the sudden change continues.
- Which is the ideal target value and which is the maintenance target value depends on the direction of the sudden change in weather.
- FIG. 4 is a diagram showing the relationship between the direction of sudden change in weather, the ideal target value, and the maintenance target value.
- the graph is shown separately for a case where the weather is temporarily recovered (A) and a case where the weather is temporarily broken (B).
- the horizontal axis is time
- the vertical axis is power value.
- the graphs of the correction target values shown in (A) and (B) show the operation plan when the operation is performed only by the periodic correction.
- (A) shows that the weather sharply improved from around 7 o'clock to around 9 o'clock, and that the weather deteriorated rapidly from around 9 o'clock to around 10 o'clock. That is, in (A), the supply power (PV) of photovoltaic power generation increases rapidly from around 7 o'clock to around 9 o'clock, and the supply power of solar power generation decreases sharply from around 9 o'clock to around 10 o'clock. is doing.
- the driving device 10 determines the ideal target value and the maintenance target value after 9 o'clock. Specifically, the discharge target value corresponding to the situation where the weather returns to the weather before the sudden change in a short period is set as the maintenance target value. The discharge target value corresponding to the situation where the situation where the state after the sudden change continues is set as the ideal target value.
- the driving device 10 determines the ideal target value and the maintenance target value around 12:30. Specifically, the discharge target value corresponding to the situation in which the weather returns to the weather before the sudden change in a short period is set as the ideal target value. The maintenance target value corresponding to the situation where the state after the sudden change continues is set as the ideal target value.
- the discharge target value corresponding to is set as the maintenance target value.
- the discharge target value corresponding to the situation where the weather is relatively good before and after the sudden change of the weather, that is, the discharge target value corresponding to the situation where the supply power of the photovoltaic power generation decreases and the shortage power becomes low is the ideal target value. It is said. Therefore, the ideal target value is smaller than the maintenance target value.
- the driving device 10 has a functional configuration as shown in FIG.
- FIG. 5 is a diagram illustrating a functional configuration example of the operating device according to the embodiment of the present invention.
- the driving device 10 includes an operation status monitoring unit 11, a periodic correction unit 12, a sudden weather change response unit 13, and the like. Each of these units is realized by processing executed by the CPU 104 by a program installed in the driving device 10.
- the operation plan DB 60 may be stored in the auxiliary storage device 102, or may be stored in a storage device connected to the operation plan creation device 20 or the operation device 10 via a network.
- the operation status monitoring unit 11 is, for example, data indicating an operation status such as a measurement value of the remaining amount of the storage battery 40 and an observation value of the sunshine status from the control device 30 at a constant cycle (hereinafter referred to as “situation monitoring cycle”). Hereinafter, it is referred to as “state data”.
- the operation status monitoring unit 11 causes the periodic correction unit 12 to execute the periodic correction, and transmits a correction target value obtained as a result of the periodic correction to the control device 30.
- the operation state monitoring unit 11 causes the sudden weather change response unit 13 to determine an ideal target value, a maintenance target value, and an abort threshold.
- the operation status monitoring unit 11 first transmits the ideal target value to the control device 30.
- the operation status monitoring unit 11 transmits the maintenance target value to the control device 30 when the remaining amount of the storage battery 40 falls below the lower limit of the range in which the operation with the maintenance target value can be performed at the next periodic correction time.
- the lower limit is specified in the operation plan DB 60 based on a value for the first periodic correction time to be visited next.
- the acquisition destination of the observation value of the sunshine situation may not be the control device 30.
- the operation status monitoring unit 11 includes an operation status acquisition unit 111, a weather sudden change detection unit 112, a target value selection unit 113, a control parameter setting unit 114, and the like.
- the operation status acquisition unit 111 acquires status data.
- the sudden weather change detection unit 112 detects a sudden change in weather based on the state data.
- the target value selection unit 113 selects a value to be set as a control parameter in the control device 30 from the ideal target value and the maintenance target value based on the comparison between the remaining amount of the storage battery 40 and the abort threshold.
- the control parameter setting unit 114 transmits (sets or reflects) the corrected target value, the ideal target value, or the maintenance target value to the control device 30 as a control parameter. That is, the corrected target value, ideal target value, or maintenance target value is reflected in the operation plan.
- the regular correction unit 12 determines a correction target value based on the amount of solar radiation indicated by the situation data acquired at the regular correction time, the remaining amount of the storage battery 40, and the operation plan DB 60.
- the amount of solar radiation is used as an example of a value indicating the sunshine situation.
- other index values such as sunshine hours may be used as values indicating the sunshine situation.
- the sudden weather change response unit 13 determines an ideal target value, a maintenance target value, and an abort threshold. Specifically, the sudden weather change response unit 13 determines the discharge target from the operation plan DB 60 based on the remaining amount of the storage battery 40 at the time of sudden weather change for each of the solar radiation amount at the sudden weather change and the solar radiation amount before the sudden weather change. Get the value. Of the two discharge target values acquired, the weather sudden change response unit 13 sets the one that can be expected to have a relatively high effect on the peak cut as the ideal target value and the other as the maintenance target value. Further, the abort threshold is determined based on the maintenance target value.
- FIG. 6 is a flowchart for explaining an example of a processing procedure executed by the operation status monitoring unit.
- the process of FIG. 6 is repeatedly executed with a status monitoring period of, for example, about 1 to 10 minutes.
- the periodic correction cycle is N times the status monitoring cycle (N is an integer of 2 or more). That is, the situation monitoring cycle is shorter than the periodic correction cycle, and the periodic correction cycle is an integer multiple of the situation monitoring cycle. Therefore, one time out of the processing of FIG. 6 being executed N times coincides with the periodic correction time.
- step S ⁇ b> 101 the operation status acquisition unit 111 of the operation status monitoring unit 11 acquires status data from the control device 30.
- the situation data includes the current amount of solar radiation, the remaining amount of the storage battery 40, and the like.
- the operation status monitoring unit 11 determines whether or not the current time is a periodic correction time (S102). Whether or not the current time is the regular correction time can be determined by referring to the operation plan DB 60. This is because, as will be described later, the operation plan DB 60 stores a periodic correction time for each periodic correction period. Further, the current time may be acquired from a clock (not shown) included in the driving device 10 or may be included in the situation data.
- the operation status monitoring unit 11 determines whether or not the ideal target value is valid (S103).
- the state where the ideal target value is valid means a state where the ideal target value is selected as a control parameter, that is, a state where an operation based on the ideal target value is performed.
- the determination in step S103 is performed, for example, by referring to the value of a variable (hereinafter referred to as “ideal target flag”) indicating whether or not the ideal target value is valid.
- the ideal target flag may take a value of true or false. true indicates that the ideal target value is valid. false indicates that the ideal target value is invalid. Note that the ideal target value is determined in a subsequent step. Therefore, when step S103 is first executed, the ideal target value is invalid. That is, the initial value of the ideal target flag is false.
- the sudden weather change detection unit 112 of the operation status monitoring unit 11 determines whether or not the weather has suddenly changed (S104). Details of the determination process will be described later.
- the operation status monitoring unit 11 causes the sudden weather change response unit 13 to execute a target value determination process (S105). In the target value determination process, the ideal target value and the maintenance target value are determined. Subsequently, the operation status monitoring unit 11 causes the sudden weather change response unit 13 to execute an abort threshold calculation process (S106). In the abort threshold calculation process, an abort threshold is calculated. Details of the target value determination process and the abort threshold calculation process will be described later.
- the target value selection unit 113 of the operation status monitoring unit 11 executes target value selection processing (S107).
- target value selection process an ideal target value or a maintenance target value is selected as a control parameter based on a comparison between the remaining amount of the storage battery 40 indicated by the status data and the abort threshold.
- the control parameter setting unit 114 of the operation status monitoring unit 11 transmits a control parameter indicating the selected value to the control device 30 (S108). If a sudden change in weather is not detected (No in S104), steps S105 to S108 are not executed.
- steps S106 to S108 are executed. That is, after the ideal target value is validated within one periodic correction cycle, it is determined whether or not switching to the maintenance target value is necessary by the target value selection process, and the maintenance target value is set to the control parameter as necessary. Selected as.
- FIG. 6 shows an example in which the target value determination process is not executed as long as the ideal target value is valid. However, even if the ideal target value is valid, the target value determination process is executed and the ideal target value is determined. The value and the maintenance target value may be recalculated. In this case, the branch of step S103 may be removed.
- the operation status monitoring unit 11 indicates the value of the remaining amount of the storage battery 40 held by itself at the last periodic correction time. Update with the indicated value (S109). Subsequently, the operation status monitoring unit 11 initializes the value of the ideal target flag to false (S110). That is, the ideal target value or the maintenance target value set by sudden weather change becomes invalid at every regular correction time. This means that the operation based on the ideal target value or the maintenance target value determined within a certain periodic correction cycle is effective within the regular correction cycle.
- the sudden weather change detection unit 112 of the operation status monitoring unit 11 determines whether or not the weather has suddenly changed (S111).
- the process of step S111 may be the same as that of step S104.
- the operation status monitoring unit 11 causes the periodic correction unit 12 to execute a periodic correction process (S112).
- the periodic correction process the discharge target value corresponding to the current time and the situation data is specified as the correction target value.
- a control parameter indicating the correction target value identified in the periodic correction process is transmitted to the control device 30. Details of the periodic correction process will be described later.
- steps S105 to S108 are executed. That is, when a sudden change in weather is detected at the regular correction time, processing corresponding to the sudden change in weather is executed in preference to the regular correction.
- control device 30 that has received the control parameter transmitted in step S108 causes the storage battery 40 to discharge when the insufficient power exceeds the value indicated by the control parameter. As a result, the peak of the insufficient power is suppressed to be equal to or less than the control parameter value.
- FIG. 7 is a diagram illustrating an example of transitions of control parameter values.
- FIG. 7 shows a transition example of the value of the control parameter in one regular modification period from the regular modification time t1 to the regular modification time t4.
- a control parameter indicating the correction target value 1 determined by the periodic correction unit 12 is set in the control device 30. Subsequently, when a sudden change in weather is detected at time t2, an ideal target value and a maintenance target value are determined, and a control parameter indicating the ideal target value is set in the control device 30. Subsequently, at time t ⁇ b> 3, when the remaining amount of the storage battery 40 falls below the cutoff threshold, a control parameter indicating a maintenance target value is set in the control device 30. Subsequently, when the periodic correction time t2 comes, a control parameter indicating the correction target value 2 determined by the periodic correction unit 12 is set in the control device 30.
- the corrected target value 1 and the corrected target value 2 are not necessarily the same value.
- the ideal target value and the maintenance target value are determined, and a control parameter indicating the ideal target value is set in the control device 30. Is done. Further, if the remaining amount of the storage battery 40 does not fall below the cutoff threshold between time t2 and the regular correction time t4, the control parameter indicating the maintenance target value is not set in the control device 30.
- FIG. 8 is a flowchart for explaining an example of a processing procedure of determination processing for sudden weather change.
- step S201 the sudden weather change detection unit 112 converts the solar radiation amount I (t) at the current time (t) into the sunshine rate SD (t).
- the amount of solar radiation I (t) is included in the state data acquired at time (t).
- the conversion from the amount of solar radiation into the sunshine rate may be performed using, for example, a conversion table created by regression analysis based on past data.
- the sudden weather change detection unit 112 calculates the solar radiation amount I (t ⁇ t) in the state data acquired at the time (t ⁇ t) before ⁇ t from the time (t) by the sunshine rate SD (t ⁇ t). (S202).
- ⁇ t is, for example, an integer multiple of the situation monitoring period.
- the time (t ⁇ t) is referred to as “sunshine ratio comparison reference time”.
- the sudden weather change detection part 112 should just hold
- the sudden weather change detection unit 112 determines whether or not the following formula (1), which is an example of a condition indicating the sudden weather change, is satisfied (S203).
- the threshold value ⁇ may be determined as appropriate.
- ⁇ t may not be a constant. For example, even if the periodic correction time immediately before the last periodic correction time before the time (t) is the time corresponding to the reference time (t- ⁇ t in the above) for comparing solar radiation amounts. Good.
- FIG. 9 is a flowchart for explaining an example of the process procedure of the periodic correction process.
- the process of FIG. 9 is basically executed at a periodic correction cycle. However, if a sudden change in weather is detected at the regular correction time, the process of FIG. 9 is not executed.
- step S ⁇ b> 301 the regular correction unit 12 acquires the current target, the discharge target value associated with the application condition that matches the solar radiation amount indicated by the state data and the remaining amount of the storage battery 40 from the operation plan DB 60.
- FIG. 10 is a diagram showing a configuration example of the operation plan DB.
- each record of the operation plan DB 60 has items such as a month, a time, a storage battery remaining amount, a solar radiation amount, a solar radiation rate, and a discharge target value.
- the month, the time, the remaining amount of storage battery, the amount of solar radiation, and the sunshine rate constitute application conditions. However, either the amount of solar radiation or the sunshine rate may be removed from the application conditions.
- step S301 a discharge target value corresponding to an application condition that matches the month to which the day belongs, the current time, the remaining amount of the storage battery 40, and the amount of solar radiation included in the state data is acquired.
- the operation plan DB 60 a plurality of records are registered for the same time in the same month.
- the discharge target value For example, when the remaining amount of the storage battery 40 is 50% and the amount of solar radiation is 0.217 [kWh] at 8 o'clock on a certain day in July, 19 [kW] is acquired as the discharge target value.
- the sunshine rate is not used, but the sunshine rate may be used instead of the amount of solar radiation.
- the match between the current time and state data and the application condition may not be a complete match.
- continuous values such as the remaining battery capacity and solar radiation are discretized with a granularity that does not significantly affect the operation, and the discharge target value for each application condition is optimized and then relative to the current time and status data.
- a discharge target value that corresponds to an application condition close to may be acquired.
- the periodic correction unit 12 determines the acquired discharge target value as the correction target value (S302).
- step S112 may be removed from FIG.
- the processing of FIG. 9 may be executed with priority.
- the operation plan DB 60 is created in advance by the operation plan creation device 20.
- the application condition is an application condition indicating a possible situation and a discharge target value that is highly likely to maximize the peak cut rate in the situation.
- Optimized methods such as a genetic algorithm or PSO (Particle Swarm Optimization) may be used to estimate the target discharge value that is likely to maximize the peak cut rate.
- PSO Particle Swarm Optimization
- a method based on an exhaustive supply and demand scenario as shown in International Publication No. 2012/127585 may be used.
- FIG. 11 is a flowchart for explaining an example of a processing procedure of target value determination processing.
- the weather sudden change response unit 13 stores the record of the operation plan DB 60 corresponding to the last periodic correction time (hereinafter referred to as “previous periodic correction time”) before the time (t) when the weather sudden change is detected. From the inside, the amount of solar radiation at time (t) (hereinafter referred to as “sudden amount of solar radiation at the time of sudden change”) and the remaining amount of storage battery 40 at the previous periodic correction time (hereinafter referred to as “the remaining amount at the time of previous periodic correction”). Search for records that meet the applicable conditions. The match here may not be a complete match.
- the sudden weather change response unit 13 acquires a discharge target value from the retrieved record. Hereinafter, the discharge target value is referred to as “abrupt change target value”.
- the sudden change target value is a discharge target value that would have been selected if the amount of solar radiation at the last periodic correction time was the amount of solar radiation at time (t).
- the time (t) at which a sudden change in weather is detected coincides with the periodic correction time, that is, when step S107 is executed in the case of Yes in step S111 in FIG. Regular correction time ”. Therefore, in this case, it can be said that the sudden change target value is a discharge target value that would have been selected if the amount of solar radiation at the current periodic correction time was the amount of solar radiation at time (t).
- the remaining amount of the storage battery 40 at the previous regular correction time can be specified by referring to the value of the remaining amount of the storage battery 40 updated at each regular correction time in step S109 of FIG.
- the sudden weather change response unit 13 applies the solar radiation amount at the time (t- ⁇ t) before the sudden weather change and the remaining amount at the previous periodic correction from the records of the operation plan DB 60 corresponding to the previous regular correction time. Search for records that meet the conditions.
- the sudden weather change response unit 13 acquires the discharge target value of the searched record (S402).
- the discharge target value is referred to as “target value before sudden change”. It can be said that the target value before sudden change is a discharge target value that would have been selected if the amount of solar radiation at the last periodic correction time was the amount of solar radiation at time (t ⁇ t).
- the sudden weather change response unit 13 compares the target value before the sudden change with the target value during the sudden change (S403). As a result of the comparison, the weather sudden change response unit 13 sets the smaller value as the ideal target value (S404), and sets the larger value as the maintenance target value (S405). The sudden weather change response unit 13 sets the solar radiation amount of the record for which the ideal target value is acquired as the ideal solar radiation amount (S404), and sets the solar radiation amount of the record for which the maintenance target value is acquired as the maintenance solar radiation amount (S405).
- the target value before sudden change is compared with the target value at the time of sudden change, and the higher peak cut effect is set as the ideal target value, and the peak cut effect is low, but the discharge amount of the storage battery 40 is reduced. The person who can do that is the maintenance target value.
- the ideal target value it is possible to perform an operation suitable for a situation where the weather is relatively good before and after the sudden change in weather.
- the maintenance target value it is possible to perform an operation suitable for a situation where the weather is relatively bad before and after a sudden change in weather.
- FIG. 12 is a diagram for explaining the relationship between parameters used for obtaining the ideal target value, the maintenance target value, and the like.
- the target value before the sudden change is set to the amount of solar radiation before the sudden change of weather (the amount of solar radiation before the sudden change) and the remaining amount at the time of the previous periodic correction in the record of the operation plan DB 60 at the previous regular correction time.
- This is the target discharge value for records that meet the applicable conditions.
- the target value at the time of sudden change is the discharge of the record in which the application conditions match the amount of solar radiation at the time of sudden change of weather (the amount of solar radiation at the time of sudden change) and the remaining amount at the time of previous periodic correction in the record of the operation plan DB 60 at the previous regular correction time It is a target value.
- the amount of solar radiation used differs between the specification of the target value before sudden change and the target value at the time of sudden change.
- the larger value is set as the maintenance target value, and the smaller value is set as the ideal target value.
- the one used for specifying the maintenance target value is the maintenance solar radiation amount
- the one used for specifying the ideal target value is the ideal solar radiation amount.
- FIG. 13 is a flowchart for explaining an example of the processing procedure of the abort threshold calculation processing.
- step S501 the weather sudden change response unit 13 searches the record of the operation plan DB 60 corresponding to the next periodic correction time for a record including the solar radiation amount that matches the maintenance target value and the solar radiation amount, and Acquire the remaining battery capacity.
- the match may not be a perfect match.
- each record of the operation plan DB 60 is created with respect to an assumed application condition, by applying an application condition other than the discharge target value and the remaining amount of storage battery, the operation with the discharge target value can be performed. It is possible to obtain the necessary or suitable remaining battery capacity. Therefore, in the storage battery remaining amount thus obtained, the solar radiation amount at the time of the record storing the storage battery residual amount is the solar radiation amount of the record, and the operation based on the discharge target value of the record at the time is performed. When performing, it can be said that it is the remaining amount that needs to remain in the storage battery 40.
- the remaining amount of the storage battery acquired in step S501 remains in the storage battery 40 when the amount of solar radiation at the next regular correction time is the maintenance solar radiation amount and the operation based on the maintenance target value is performed at the regular correction time. It can be said that the remaining amount is necessary.
- the requirement that the solar radiation amount at the next periodic correction time is the maintenance solar radiation amount is equivalent to the requirement that the weather at the next periodic correction is relatively worse before and after the sudden weather change.
- the maintenance target value is 23.5 [kW]
- the maintenance solar radiation amount is 0.344 [kWh] and the remaining capacity of the storage battery 40 is 20 [%]
- 23.5 [kW] is set as the corrected target value. This means that it can be operated. Therefore, when the maintenance target value is 23.5 [kW], as long as the remaining amount of the storage battery 40 exceeds 20%, even if the discharge amount increases due to operation with the ideal target value, the maintenance target value 23 .5 [kW] operation is feasible.
- the remaining amount of storage battery acquired in step S501 is referred to as “required remaining amount at the next periodic correction”.
- the sudden weather change response unit 13 calculates an abort threshold based on the remaining amount required for the next periodic correction (S502).
- the remaining amount required for the next periodic correction may be used as the abort threshold as it is.
- the censoring threshold value is larger than the necessary remaining amount at the next periodic correction. Is desirable. That is, it is desirable that the amount of change in the remaining amount of the storage battery 40 from the time when the control parameter is switched from the ideal target value to the maintenance target value until the next periodic correction time is taken into account for determining the abort threshold.
- the sudden weather change response unit 13 assumes that the remaining amount of the storage battery 40 changes linearly from the previous periodic correction time to the next periodic correction time, and applies linear interpolation to the necessary remaining amount at the next periodic correction.
- the value is set as an abort threshold. Specifically, the abort threshold is calculated based on the following equation (2).
- Abort threshold Remaining amount at the last periodic correction-Elapsed time from the last periodic correction time (minutes) x (Remaining amount at the last periodic correction-Necessary remaining amount at the next periodic correction) / Periodic correction cycle (minutes) 2) For example, when the remaining amount at the time of the last periodic correction is 30% and the remaining amount at the time of the next periodic correction is 20%, the difference between 30% and 20% is 10%. It is assumed that the battery is discharged evenly between the correction times. Therefore, for example, if the current time is intermediate between the previous periodic correction time and the next correction time, 25% is set as the abort threshold.
- a method other than linear interpolation may be used for interpolation based on the remaining amount required for the next periodic correction. For example, a value corresponding to the elapsed time from the previous periodic correction time may be stored in advance in the auxiliary storage device 102, and the value may be added to the necessary remaining amount at the next periodic correction.
- FIG. 14 is a flowchart for explaining an example of the processing procedure of the target value selection processing.
- step S601 the target value selection unit 113 compares the abort threshold with the remaining amount of the storage battery 40.
- the remaining amount of the storage battery 40 is a value (that is, the remaining amount at the present time) included in the state data acquired in step S101 of FIG.
- the comparison corresponds to an example of determining whether or not the difference between the remaining amount of the storage battery 40 and the required remaining amount at the next periodic correction is equal to or greater than a predetermined value.
- the predetermined value is a difference between the abort threshold and the required remaining amount at the next periodic correction.
- the target value selection unit 113 validates the ideal target value (S602). That is, true is substituted for the ideal target flag. Subsequently, the target value selection unit 113 selects an ideal target value as a control parameter (S603).
- the target value selection unit 113 invalidates the ideal target value (S604). That is, false is substituted for the ideal target flag. Subsequently, the target value selection unit 113 selects the maintenance target value as a control parameter (S607).
- the ideal target value and the maintenance target value are determined as control parameter candidates based on the sunshine situation before and after the sudden change in weather.
- the ideal target value is selected as the control parameter during the period in which the capacity necessary for using the maintenance target value as the control parameter remains in the storage battery 40, and the remaining capacity of the storage battery 40 is determined by the capacity.
- the maintenance target value is selected as a control parameter when it becomes below.
- the ideal target value, the maintenance target value, and the abort threshold value are determined based on the operation plan DB 60 generated in advance by the operation plan creation device 20. Therefore, it is possible to suppress an increase in additional calculation cost required at the time of operation for measures against sudden weather changes.
- the process executed by the operation device 10 may be performed by the operation plan creation device 20.
- the driving device 10 may set the threshold selected by the driving plan creation device 20 in the control device 30.
- the present embodiment may be implemented without distinguishing between the operation device 10 and the operation plan creation device 20. That is, any one of the driving device 10 and the driving plan creation device 20 may simultaneously realize the other function.
- the operation device 10 is an example of an operation plan generation device.
- the control parameter is an example of a threshold value.
- the operation status acquisition unit 111 is an example of a first acquisition unit.
- the sudden weather change response unit 13 is an example of a second acquisition unit.
- the sudden weather change detection unit 112 is an example of a detection unit.
- the target value selection unit 113 is an example of a selection unit.
- the operation plan DB 60 is an example of a storage unit.
- the amount of solar radiation is an example of sunshine information.
- the control parameter setting unit 114 is an example of a reflection unit.
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Abstract
Description
|SD(t)-SD(t-Δt)|/Δt>δ ・・・(1)
すなわち、時刻(t)における日照率と、時刻(t-Δt)における日照率との差分の絶対値を、Δtによって除した値が、閾値δより大きいか否かを判定する。閾値δは、適宜定められればよい。
例えば、前回定期修正時残量が30%であり、次回定期修正時必要残量が20%である場合、30%と20%の差分である10%が、前回の定期修正時刻と次回の定期修正時刻とのの間で均等に放電されると仮定される。したがって、例えば、現在時刻が、前回の定期修正時刻と次回修正時刻の中間である場合、25%が、打ち切り閾値とされる。
11 運用状況監視部
12 定期修正部
13 天候急変対応部
20 運転計画作成装置
30 制御装置
40 蓄電池
60 運転計画DB
100 ドライブ装置
101 記録媒体
102 補助記憶装置
103 メモリ装置
104 CPU
105 インタフェース装置
111 運用状況取得部
112 天候急変検知部
113 目標値選択部
114 制御パラメータ設定部
B バス
Claims (9)
- 太陽光発電の供給電力の不足分が閾値を超える場合に放電する蓄電池を制御する制御装置に対し、運転計画に基づき指示を与える運転装置の前記運転計画を生成する運転計画生成装置において、
日照状況を示す日照情報を取得するとともに、前記制御装置を介して前記蓄電池の残量を取得する第1の取得部と、
現時刻から所定時間内における前記日照情報の所定の変化を検知する検知部と、
前記蓄電池の残量と、前記日照情報と、前記日照情報が観測された時刻との組み合わせに対応付けて、前記閾値の候補を記憶する記憶部と、
前記日照情報の所定の変化が検知された第1の時刻と、前記第1の時刻における第1の日照情報と、前記第1の時刻における前記蓄電池の残量との組み合わせに対応する第1の閾値の候補と、前記第1の時刻から前記所定時間以上前の第2の時刻における第2の日照情報と、前記第2の時刻における前記蓄電池の残量との組み合わせに対応する第2の閾値の候補とを、前記記憶部から取得する第2の取得部と、
前記第2の取得部が取得した前記第1の閾値の候補と前記第2の閾値の候補のうちのいずれかを、前記第1の取得部が取得する前記蓄電池の残量に応じた変更後閾値として選択する選択部と、
前記選択部が選択した変更後閾値を前記運転計画に反映する反映部と、
を有することを特徴とする運転計画生成装置。 - 前記第2の取得部は、前記第1の閾値の候補と前記第2の閾値の候補のうちの値の大きい方の第1の候補と、前記第1の時刻より後の時刻と、前記第1の候補に対応する、前記第1の時刻又は前記第2の時刻における日照情報とに対応付く蓄電池の残量を前記記憶部から取得し、
前記選択部は、前記第1の取得部によって取得される前記蓄電池の残量と、前記第2の取得部によって取得された蓄電池の残量との差分が所定値を超える期間においては、前記第1の閾値の候補と前記第2の閾値の候補のうちの値の小さい方の候補を前記変更後閾値として選択する請求項1記載の運転計画生成装置。 - 前記選択部は、前記第1の取得部によって取得される前記蓄電池の残量と、前記第2の取得部によって取得された蓄電池の残量との差分が前記所定値未満である期間においては、前記第1の候補を前記変更後閾値として選択する請求項2記載の運転計画生成装置。
- 太陽光発電の供給電力の不足分が閾値を超える場合に放電する蓄電池を制御する制御装置に対し、運転計画に基づき指示を与える運転装置の前記運転計画を生成する運転計画生成装置の運転計画生成方法において、
前記運転計画生成装置が有する第1の取得部が、日照状況を示す日照情報を取得するとともに、前記制御装置を介して前記蓄電池の残量を取得し、
前記運転計画生成装置が有する検知部が、現時刻から所定時間内における前記日照情報の所定の変化を検知し、
前記蓄電池の残量と、前記日照情報と、前記日照情報が観測された時刻との組み合わせに対応付けて、前記閾値の候補を記憶する前記運転計画生成装置が有する記憶部から、前記運転計画生成装置が有する第2の取得部が、前記日照情報の所定の変化が検知された第1の時刻と、前記第1の時刻における第1の日照情報と、前記第1の時刻における前記蓄電池の残量との組み合わせに対応する第1の閾値の候補と、前記第1の時刻から前記所定時間以上前の第2の時刻における第2の日照情報と、前記第2の時刻における前記蓄電池の残量との組み合わせに対応する第2の閾値の候補とを取得し、
前記第2の取得部が取得した前記第1の閾値の候補と前記第2の閾値の候補のうちのいずれかを、前記運転計画生成装置が有する選択部が、前記第1の取得部が取得する前記蓄電池の残量に応じた変更後閾値として選択し、
前記運転計画生成装置が有する反映部が、前記選択部により選択された変更後閾値を前記運転計画に反映することを特徴とする運転計画生成方法。 - 前記閾値の候補を取得する処理は、前記第1の閾値の候補と前記第2の閾値の候補のうちの値の大きい方の第1の候補と、前記第1の時刻より後の時刻と、前記第1の候補に対応する、前記第1の時刻又は前記第2の時刻における日照情報とに対応付く蓄電池の残量を前記記憶部から取得し、
前記選択する処理は、前記蓄電池の残量を取得する処理において取得される前記蓄電池の残量と、前記閾値の候補を取得する処理において取得された蓄電池の残量との差分が所定値を超える期間においては、前記第1の閾値の候補と前記第2の閾値の候補のうちの値の小さい方の候補を前記変更後閾値として選択する請求項4記載の運転計画生成方法。 - 太陽光発電の供給電力の不足分が閾値を超える場合に放電する蓄電池を制御する制御装置に対し、運転計画に基づき指示を与える運転装置の前記運転計画を生成する運転計画生成装置の運転計画生成プログラムにおいて、
前記運転計画生成装置が有する第1の取得部に、日照状況を示す日照情報を取得するとともに、前記制御装置を介して前記蓄電池の残量を取得させ、
前記運転計画生成装置が有する検知部に、現時刻から所定時間内における前記日照情報の所定の変化を検知させ、
前記蓄電池の残量と、前記日照情報と、前記日照情報が観測された時刻との組み合わせに対応付けて、前記閾値の候補を記憶する前記運転計画生成装置が有する記憶部から、前記運転計画生成装置が有する第2の取得部に、前記日照情報の所定の変化が検知された第1の時刻と、前記第1の時刻における第1の日照情報と、前記第1の時刻における前記蓄電池の残量との組み合わせに対応する第1の閾値の候補と、前記第1の時刻から前記所定時間以上前の第2の時刻における第2の日照情報と、前記第2の時刻における前記蓄電池の残量との組み合わせに対応する第2の閾値の候補とを取得させ、
前記第2の取得部が取得した前記第1の閾値の候補と前記第2の閾値の候補のうちのいずれかを、前記運転計画生成装置が有する選択部に、前記第1の取得部が取得する前記蓄電池の残量に応じた変更後閾値として選択させ、
前記運転計画生成装置が有する反映部に、前記選択部により選択された変更後閾値を前記運転計画に反映させることを特徴とする運転計画生成プログラム。 - 前記閾値の候補を取得する処理は、前記第1の閾値の候補と前記第2の閾値の候補のうちの値の大きい方の第1の候補と、前記第1の時刻より後の時刻と、前記第1の候補に対応する、前記第1の時刻又は前記第2の時刻における日照情報とに対応付く蓄電池の残量を前記記憶部から取得し、
前記選択する処理は、前記蓄電池の残量を取得する処理において取得される前記蓄電池の残量と、前記閾値の候補を取得する処理において取得された蓄電池の残量との差分が所定値を超える期間においては、前記第1の閾値の候補と前記第2の閾値の候補のうちの値の小さい方の候補を前記変更後閾値として選択する請求項6記載の運転計画生成プログラム。 - 前記選択する処理は、前記蓄電池の残量を取得する処理において取得される前記蓄電池の残量と、前記閾値の候補を取得する処理において取得された蓄電池の残量との差分が前記所定値未満である期間においては、前記第1の候補を前記変更後閾値として選択する請求項7記載の運転計画生成プログラム。
- 太陽光発電の供給電力の不足分が閾値を超える場合に放電する蓄電池と、前記蓄電池を制御する制御装置と、前記制御装置に対して運転計画に基づき指示を与える運転装置と、前記運転計画を生成する運転計画生成装置とを有する蓄電池システムにおいて、
前記運転計画生成装置は、
日照状況を示す日照情報を取得するとともに、前記制御装置を介して前記蓄電池の残量を取得する第1の取得部と、
現時刻から所定時間内における前記日照情報の所定の変化を検知する検知部と、
前記蓄電池の残量と、前記日照情報と、前記日照情報が観測された時刻との組み合わせに対応付けて、前記閾値の候補を記憶する記憶部と、
前記日照情報の所定の変化が検知された第1の時刻と、前記第1の時刻における第1の日照情報と、前記第1の時刻における前記蓄電池の残量との組み合わせに対応する第1の閾値の候補と、前記第1の時刻から前記所定時間以上前の第2の時刻における第2の日照情報と、前記第2の時刻における前記蓄電池の残量との組み合わせに対応する第2の閾値の候補とを、前記記憶部から取得する第2の取得部と、
前記第2の取得部が取得した前記第1の閾値の候補と前記第2の閾値の候補のうちのいずれかを、前記第1の取得部が取得する前記蓄電池の残量に応じた変更後閾値として選択する選択部と、
前記選択部が選択した変更後閾値を前記運転計画に反映する反映部と、
を有することを特徴とする蓄電池システム。
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JP2015535255A JP6142925B2 (ja) | 2013-09-09 | 2013-09-09 | 運転計画生成装置、運転計画生成方法、運転計画生成プログラムおよび蓄電池システム |
PCT/JP2013/074212 WO2015033461A1 (ja) | 2013-09-09 | 2013-09-09 | 運転計画生成装置、運転計画生成方法、運転計画生成プログラムおよび蓄電池システム |
EP13892930.2A EP3046213A4 (en) | 2013-09-09 | 2013-09-09 | DEVICE FOR CREATING OPERATING PLANS, METHOD FOR CREATING OPERATING PLANS, PROGRAM FOR CREATING OPERATING PLANS AND MEMORY BATTERY SYSTEM |
US15/051,965 US20160172899A1 (en) | 2013-09-09 | 2016-02-24 | Operation schedule generating apparatus, operation schedule generating method, and storage battery system |
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US15/051,965 Continuation US20160172899A1 (en) | 2013-09-09 | 2016-02-24 | Operation schedule generating apparatus, operation schedule generating method, and storage battery system |
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US (1) | US20160172899A1 (ja) |
EP (1) | EP3046213A4 (ja) |
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Cited By (2)
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CN106886201A (zh) * | 2015-12-16 | 2017-06-23 | 北京智芯微电子科技有限公司 | 一种面向互联网的家用光伏发电系统和控制方法 |
US10673240B2 (en) | 2017-11-15 | 2020-06-02 | Kabushiki Kaisha Toshiba | Power control apparatus, power control method, and recording medium |
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US10734811B2 (en) * | 2017-11-27 | 2020-08-04 | Ihi Inc. | System and method for optimal control of energy storage system |
WO2019112527A1 (en) * | 2017-12-05 | 2019-06-13 | Ottekin Mustafa Fikret | An energy storage system and a control method for the energy storage system |
CN108197774B (zh) * | 2017-12-08 | 2020-02-14 | 囯网河北省电力有限公司电力科学研究院 | 一种分布式光伏发电量异常诊断的方法及装置 |
US11467616B2 (en) * | 2018-11-09 | 2022-10-11 | General Electric Company | System and method for controlling operation of an energy generation and storage system |
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US10673240B2 (en) | 2017-11-15 | 2020-06-02 | Kabushiki Kaisha Toshiba | Power control apparatus, power control method, and recording medium |
Also Published As
Publication number | Publication date |
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US20160172899A1 (en) | 2016-06-16 |
EP3046213A1 (en) | 2016-07-20 |
EP3046213A4 (en) | 2016-08-31 |
JPWO2015033461A1 (ja) | 2017-03-02 |
JP6142925B2 (ja) | 2017-06-07 |
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