JP2019050666A - Processing apparatus, controller, pcs, processing method, control method, and program - Google Patents

Abstract

To provide a technique for grasping power amounts of various kinds of electric power.SOLUTION: A processing apparatus 10 comprises: a smart meter measurement acquisition part 11 for acquiring charge and discharge amounts of power measured by a smart meter, which are amounts of electric power charged into and discharged from a power-storage system within given time; a charge/discharge instruction amount acquisition part 12 for acquiring a charge instruction value determined by integrating, with respect to time, a charge-side integration instruction value within the given time in an integration instruction value within the given time, and a discharge instruction amount determined by integrating, with respect to time, a discharge-side integration instruction value; a correction coefficient calculating part 13 for calculating a correction coefficient in charge, and a correction coefficient in discharge; and a various kinds of charge/discharge amount-calculating part 14 for calculating an amount charged or discharged by the power-storage system according to each of more than one kind of instruction values based on the correction coefficient in charge, the correction coefficient in discharge, and more than one kind of instruction values.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a processing device, a control device, a PCS, a processing method, a control method, and a program.

  Various services for controlling the operation of storage batteries owned by power consumers are being considered. For example, charge / discharge control corresponding to seasonal and hourly electricity charges, in which charging / discharging of the storage battery is controlled so as to charge in a relatively cheap time zone and charge in a relatively high time zone There is a service (hereinafter, "energy management service"). According to the service, the power consumer can reduce the electricity bill paid to the power company.

  In addition, there is a service (hereinafter referred to as “ancillary service”) that controls charging and discharging of a storage battery in order to balance supply and demand of a power system. That is, the storage battery of the power consumer is used as an adjusting power or a reserve power for adjusting supply and demand balance of the power system. The service is a service for transmission and distribution companies. In addition, it can also be regarded as a service for the power consumer by paying a predetermined incentive to the power consumer who provided the storage battery for the service.

  In addition, there is a service (hereinafter, "imbalance avoidance service") that controls charging and discharging of a storage battery based on a request from a retail electric power company. If it is difficult for the retailer to achieve the same amount for 30 minutes simultaneously by adjusting its own system, the retailer providing the service to the storage battery of the electricity demander whose electricity supply contract the retailer has a power supply contract with (It is also possible for “retail electricity supplier to the battery of another power consumer who does not have a power supply contract”, but the payment process such as consideration calculation and incentive becomes a little complicated) at a predetermined timing Request a predetermined amount of charge or discharge. The provider who provides the service controls the storage battery of the power consumer based on the above request, and performs charging or discharging of a predetermined amount at a predetermined timing. The service is a service for retail electric utilities. In addition, it can also be regarded as a service for the power consumer by paying a predetermined incentive to the power consumer who provided the storage battery for the service.

  In addition, based on a request from a power generation company that owns a power generation device or the like using natural energy (for example, solar light), a service (hereinafter, "surplus power absorption service") that controls charging and discharging of a storage battery can be considered. If there is a possibility that the power transmission and distribution operation company may interfere with the supply and demand operation of the power system, the power transmission and distribution business can request the power generation company to suppress the output (suppress the reverse flow to the power system). The power generation company that has received the request for output reduction requests the company providing the service to charge the part that needs to be suppressed during the output reduction time zone. And a power generation company performs usual output, without performing output control also in the time slot which received output control. The provider who provides the service controls the storage battery of the power consumer based on the above request, and charges the part that needs to be suppressed in the time period when the output is suppressed. The service is a service for a power producer. In addition, it can also be regarded as a service for the power consumer by paying a predetermined incentive to the power consumer who provided the storage battery for the service.

  Techniques related to the implementation of these services are disclosed in Patent Documents 1 and 2. Patent Document 1 discloses a server apparatus that provides a charge / discharge control schedule of a storage battery to a power consumer who holds the storage battery. The control device that controls the storage battery is, based on the charge / discharge control schedule, an estimate of a time slot with a high electricity rate when the charge difference between the time slot with the highest electricity rate and the time slot with the lowest electricity rate is a certain value or more. Power corresponding to power consumption is charged in the other time zone, and the storage battery is controlled to discharge in the time zone where the electricity charge is high.

  Patent Document 2 discloses an ancillary service providing apparatus that provides ancillary services in consideration of the life of a storage battery.

JP, 2014-236627, A Unexamined-Japanese-Patent No. 2012-60833

  Currently, a smart meter is installed in the power demand facility, and "the amount of power supplied from the power grid to the power demander system [Wh]" and "the amount of power supplied from the power demander system to the power grid [Wh] Etc. are measured. And with the implementation of the various services mentioned above, the technology which grasps not only the electric energy [Wh] mentioned above but also the electric energy [Wh] of other various electric power (example: electric power for various services) is desired. ing. An object of the present invention is to provide a technology for grasping the amount of power [Wh] of various types of power.

According to the invention
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount obtaining means for obtaining a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh];
A processing device is provided.

Moreover, according to the present invention,
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W], controls a storage battery, and charges and discharges with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value A unit for calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side;
A control device is provided.

  Further, according to the present invention, there is provided a PCS for controlling a storage battery, which includes the processing device or the control device.

Moreover, according to the present invention,
The computer is
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring step of acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time A charge / discharge command amount acquisition step of acquiring a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side among the values [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. A correction coefficient calculation step of calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation steps for calculating [Wh];
There is provided a processing method for performing

Moreover, according to the present invention,
Computer,
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquisition means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values,
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount acquisition means for acquiring a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W],
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient,
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh],
A program to function as is provided.

Moreover, according to the present invention,
The computer is
Calculating an integrated command value [W] by adding a plurality of types of command values [W], controlling a storage battery to charge and discharge with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value Calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side;
A control method for performing

Moreover, according to the present invention,
Computer,
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W] and controls a storage battery to charge / discharge with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value Means for calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side,
A program to function as is provided.

  According to the present invention, a technique for grasping the amount of power of various kinds of power is realized.

It is a figure which shows an example of the functional block diagram of the power consumer system 100 of this embodiment. It is a figure which shows notionally an example of the hardware constitutions of the apparatus of this embodiment. It is a figure which shows an example of the functional block diagram of the processing apparatus 10 of this embodiment. It is a figure for demonstrating the specific example of a process of the processing apparatus 10 of this embodiment. It is a figure for demonstrating the specific example of a process of the processing apparatus 10 of this embodiment. It is a figure for demonstrating the specific example of a process of the processing apparatus 10 of this embodiment. It is a figure for demonstrating the specific example of a process of the processing apparatus 10 of this embodiment. It is a figure for demonstrating the specific example of a process of the processing apparatus 10 of this embodiment. It is a figure for demonstrating the specific example of a process of the processing apparatus 10 of this embodiment. It is a figure for demonstrating the specific example of a process of the processing apparatus 10 of this embodiment.

"Power demander system 100"
First, the power customer system 100 will be described using FIG. The power consumer system 100 is provided in a general home, a store, a company, a building, a factory, and the like. As shown in FIG. 1, the power consumer system 100 includes a storage system 101, a load group 102, a control device 103, a first smart meter 104, a second smart meter 105, and a sensor 106. . In the figure, solid lines indicate power lines, and dotted lines indicate communication lines.

  The storage system 101 includes a storage battery and a PCS (power conditioning system) that controls charging and discharging of the storage battery.

  The load group 102 operates using power as a power source. Examples of the load group 102 include, but are not limited to, lighting, air conditioners, televisions, household appliances such as refrigerators, office equipment such as personal computers and printers, and factory equipment such as machines.

  The first smart meter 104 measures the integrated power amount [Wh] supplied from the power system to the power consumer system 100 and the integrated power amount [Wh] supplied from the power consumer system 100 to the power system. . Then, the integrated power amount [Wh] for each predetermined time (for example, 30 minutes) is output. Although not shown, the first smart meter 104 is configured to be able to communicate with an external device, and the integrated amount of power per time (timing) requested from the external device or for a predetermined time (for example, 30 minutes) W h] may be sent to the external device.

  The second smart meter 105 measures the integrated amount of power [Wh] discharged from the storage system 101 and the integrated amount of power [Wh] charged in the storage system 101. Then, the integrated power amount [Wh] for each predetermined time (for example, 30 minutes) is output. Although not shown, the second smart meter 105 is configured to be able to communicate with the processing device 10 (not shown), and the time (timing) requested by the processing device 10 or a predetermined time (for example, 30 minutes) Each integrated power amount [Wh] is transmitted to the processing device 10.

  The sensor 106 measures an instantaneous value of the power [W] supplied to the load group 102. The sensor 106 transmits the measured instantaneous value of the power [W] to the control device 103. The sensor 106 is a current sensor (CT: Current Transformer), and the sensor 106 transmits an instantaneous value of the measured current [A] to the control device 103, using a voltage [V] separately measured by the control device 103. The instantaneous value of the power [W] may be calculated.

  The control device 103 calculates an integrated command value [W] obtained by adding together a plurality of types of command values [W], and transmits the calculated integrated command value [W] to the storage system 101. The PCS of the storage system 101 controls the storage battery to charge and discharge with the acquired integrated command value [W].

  Here, an example of a process of calculating a plurality of types of command values [W] and a process of calculating an integrated command value [W] will be described. The command value [W] is a charge command value [W] that is a command value [W] for charging the storage system 101, and a discharge command value [W] that is a command value [W] for discharging the storage system 101. May be included.

<Command value of LFC control (ancillary service) [W]>
Ancillary services are mainly for transmission and distribution companies. In ancillary services, charging and discharging of storage batteries are controlled to adjust the balance between supply and demand of the power system. That is, when the demand is excessive, the storage battery is discharged to perform the operation of supplying power to the power system. On the other hand, when the supply is excessive, the storage battery is caused to execute the charging operation to consume the power in the power system.

  The control device 103 of the power customer system 100 uses the command value for LFC control [W] based on the information received from the central control device (for example: server 200) that performs integrated control of the storage batteries of the plurality of power customer systems 100. Calculate The server 200 and the power demander system 100 communicate via a communication network 300 such as the Internet.

First, the central control apparatus repeatedly determines the upper limit a _{max — n} of the power input / output for LFC control in a predetermined cycle (for example, 15 minutes) corresponding to each of the plurality of storage batteries to be controlled. Then, the central control device repeatedly transmits the determined upper limit a _{max — n} to each control device 103 in a predetermined cycle (for example, 15 minutes).

The central control device, a plurality of storage batteries each upper _{a Max_n} the sum combined _{A max} the predetermined period: repeatedly calculated in (Example 15 minutes), the system in a predetermined period of power transmission and distribution service provider (for example 15 minutes) Repeatedly send with.

Further, the central control unit receives the LFC signal from the system of the power transmission and distribution company in a predetermined cycle (for example, several seconds) repeatedly or in an unfixed cycle. The LFC signal includes a total command value [W] of power charged or discharged by a plurality of storage batteries. The system of the power transmission and distribution company determines the total command value [W] in the range of A _max or less received from the central control device, and transmits it to the central control device. The LFC signal is capable of identifying the operation content (charging and discharging). For example, it may be indicated by a positive value at the time of charging and a negative value at the time of discharging. The predetermined period is not limited to 15 minutes, and may be 5 minutes.

In response to the reception of the LFC signal, the central control unit calculates a value B obtained by dividing the total command value [W] specified by the LFC signal by _Amax . Then, the central control device simultaneously transmits the calculated value B to the plurality of control devices 103. The transmission of the value B is performed repeatedly or indefinitely at a predetermined cycle (eg, several seconds). As means for realizing simultaneous transmission, it is also possible to use, for example, multicast, broadcast using FM communication and the like, and other methods. If simultaneous transmission can not be performed, individual transmission may be used.

Each control device 103 is a command value for LFC control based on a _{max — n} repeatedly received in a predetermined cycle (for example, 15 minutes) and a value B received repeatedly in a predetermined cycle (for example: several seconds) or in an indefinite cycle. Calculate [W]. Specifically, the control device calculates a product of a _{max — n} and B as a command value [W] for LFC control. The storage battery is _charged and discharged with the command value [W] calculated based on the latest a _{max — n} and B until a new a _{max — n} or B is acquired.

As a modification of the example, the system of the power transmission and distribution company divides the total command value [W] by A _max instead of the LFC signal including the total command value [W] of the power charged or discharged by the plurality of storage batteries. An LFC signal containing the value B may be sent to the central controller. Then, the central control device may simultaneously transmit the received value B to the plurality of control devices 103 without executing the process of calculating the value B.

As another modification, the central control unit may repeatedly transmit A _max to the plurality of control units 103 in a predetermined cycle (for example, 15 minutes) in addition to a _{max — n} determined corresponding to each storage battery. . Then, when the LFC signal including the total command value [W] of the power to be charged or discharged by the plurality of storage batteries is received from the system of the power transmission and distribution company, the central control unit divides the total command value [W] by A _max . Instead of the value B, the total command value [W] may be simultaneously transmitted to a plurality of control devices 103. Then, each control device 103 may calculate a command value [W] for LFC control by multiplying a value B obtained by dividing the total command value [W] by A _max by a _{max — n} .

As another modification, the central control unit, a _{a Max_n} determined in correspondence with each accumulator _may calculate the value _{d n} divided by _{A max.} Then, the central control device may repeatedly transmit d _n to the plurality of control devices 103 in a predetermined cycle (for example, 15 minutes) instead of a _{max — n} . Then, when the LFC signal including the total command value [W] of the power to be charged or discharged by the plurality of storage batteries is received from the system of the power transmission and distribution company, the central control unit controls the plurality of total command values [W]. It may be simultaneously transmitted to the device 103. Then, each control device 103 may calculate the command value [W] for LFC control by multiplying the total command value [W] by d _n .

<Command value [W] of GF equivalent control (ancillary service)>
First, the central control unit (e.g., server 200) sets upper limit c _{max_n} of power input / output [W] for GF equivalent control to a predetermined cycle (e.g., 15 minutes) corresponding to each of a plurality of storage batteries to be controlled. Repeatedly determine with). After that, the central control unit determines the contents of GF equivalent control for each storage battery. Specifically, the central control device determines the command value [W] of the power [W] to be charged or discharged in each storage battery according to the degree of the deviation of the grid frequency from the reference value (example corresponding to the example : Generate a function, a correspondence table, etc., including the system frequency reference value). In the GF equivalent control information, the maximum value of the power input / output [W] is determined to be equal to or less than the upper limit c _{max — n} . The central control unit transmits GF corresponding control information corresponding to each of the plurality of control units 103.

  Each control device 103 repeatedly measures the grid frequency at a predetermined cycle (for example, ten and several milliseconds) using an internal sensor or a measurement sensor installed near the own device. Then, the control device 103 repeatedly calculates the deviation of the grid frequency from the reference value based on the measured value and the reference value given in advance. Further, the control device 103 calculates the command value [W] for the GF equivalent control based on the calculated deviation and the GF equivalent control information. The battery is charged and discharged with the command value [W] calculated based on the latest measured value of the grid frequency and the GF corresponding control information until the new measured value of the grid frequency or the GF corresponding control information is acquired.

<Command value of energy management service [W]>
Energy management service is a service for power consumers. In the service, the power is charged in a time zone in which the power unit price is relatively low (eg, night time, 23:00 to 07:00), and the time zone in which the power unit price is relatively high (eg, daytime, 07:00) The storage battery is caused to execute charge / discharge operation to discharge power (discharge to follow the power demand of the load group) to ~ 23: 00).

  The control device 103 charges the power in the time zone in which the power unit price is relatively low, and generates a charge and discharge schedule for discharging the power in the time zone in which the power unit price is relatively high. For example, the control device 103 may set a time zone in which a power unit price is higher than a predetermined value as a time zone to discharge, and may set a time zone in which a power unit price is equal to or less than the predetermined value. The predetermined value is, for example, a statistical value (for example, P1 to P2 "Q1 yen / kWh", P2 to P3 "Q2 / kWh, ...) of the power unit price set for each time zone ( Example: Average value, median value, etc.) or the plan value given to the control device 103 in consideration of the service contents of the power company in advance (eg: July to September, especially from P4 to P5) The time may be "Q3 yen / kWh" etc.).

  Then, the control device 103 charges and discharges in a charging time zone in a range satisfying a predetermined upper limit (upper limit of power input / output for energy management service predetermined for each storage battery) or less. Generate a charge and discharge schedule to discharge the In addition, in these charge and discharge, the integrated charge amount [Wh] becomes as large as possible within the range not exceeding the upper limit of the chargeable amount by the energy management service (eg, chargeable to SOC 95%) with one day as a cycle. Is preferred. In addition, it is preferable that the integrated discharge amount [Wh] be as large as possible within the range not exceeding the upper limit of the electric energy dischargeable by the energy management service (e.g. dischargeable to SOC 5%). That is, charging to full charge as much as possible in a time zone where the power unit price is low and discharging until the battery is exhausted as much as possible in a time zone where the power unit price is high enhances the benefit in storage battery operation using the seasonal and hourly power rate difference. It is effective. However, it is not necessary to forcibly increase the power demand of the load group during the discharge period.

In addition, the system (example: server 200) of the company which provides energy management service may produce | generate a charging / discharging schedule by the above methods. Then, the control device 103 may receive the charge and discharge schedule from the system. This charge / discharge schedule is generated every predetermined cycle (for example, 15 minutes), information required for LFC control (for example, a _{max_n} etc.) is generated every predetermined cycle (for example, every 5 minutes), and GF equivalent control information is predetermined It may be generated every cycle (for example, 5 minutes).

  Control device 103 determines a command value [W] for the energy management service at each timing based on the charge and discharge schedule. In the charging time zone, for example, the charging power [W] of each timing defined in the charging and discharging schedule is determined as the command value [W] for the energy management service at each timing. On the other hand, in the discharge time zone, for example, the instantaneous value of the power [W] measured by the sensor 106 is followed within the range not exceeding the upper limit [W] of the discharge power at each timing defined in the charge and discharge schedule. The command value [W] to be discharged is determined (load following discharge). The measurement of the power of the sensor 106 may be performed, for example, every cycle of the grid frequency (every 20 msec when the grid frequency is 50 Hz). Until the new measured value [W] is obtained from the sensor 106, the storage battery is charged and discharged with the command value [W] determined based on the latest measured value [W].

<The command value for imbalance avoidance service [W]>
Imbalance avoidance service is a service for retail electric utilities. If it is difficult for the retail electric utility to achieve the planned same value for 30 minutes by the adjustment of its own system, the retail electricity supplier's electricity demander whose electric power supply contract has a power supply contract with the provider who provides the service. A predetermined amount of charge or discharge is requested to the storage battery having at a predetermined timing. Based on the request, charging / discharging of the storage battery of each power consumer is controlled.

  The central control unit (for example: server 200) is information indicating the state (for example: SOC) of each storage battery repeatedly received from the plurality of control units 103 at a predetermined cycle, baseline information for each power consumer, future power Based on the demand forecast etc., grasp the latest value such as the electric energy [Wh] that can be charged by the imbalance avoidance service, the discharge amount [Wh] that can be discharged, and the estimated value in the future for each storage battery. . Then, the central control unit adds the total amount of electric energy [Wh] that can be charged by the whole of the plurality of storage batteries, the latest value such as the discharge amount [Wh] that can be discharged, and the future Calculate the estimated value.

  The central control unit sends the above calculated result to the retail electric utility system in advance, together with information on the value when the imbalance avoidance service is performed. The retail electric utility's system takes into consideration the price and performs a request for imbalance avoidance (a predetermined amount of discharge or charge at a predetermined timing) within the range not exceeding the upper limit indicated by the result.

  The central control unit specifies the amount of power [Wh] to be charged or discharged and the time zone based on the request. Then, the central control unit selects a storage battery to be charged or discharged based on the contents of the request and the amount [Wh] that can be charged and / or discharged by each storage battery being grasped, etc., and charges each storage battery. Alternatively, determine the amount of power to be discharged [Wh]. Then, the central control unit generates a charge / discharge schedule for charging or discharging the determined electric energy [Wh] in the above time zone, and transmits each charge / discharge schedule to each control unit 103. The charge / discharge schedule of each storage battery is generated such that the power input / output [W] satisfies the predetermined upper limit (the upper limit of the power input / output for the imbalance avoidance service predetermined for each storage battery).

  Each control device 103 receives a charge / discharge schedule for the imbalance avoidance service. Then, each control device 103 determines a command value [W] for the imbalance avoidance service at each timing based on the charge and discharge schedule.

<Order value of surplus power absorption service>
The surplus power absorption service is a service directed to a power producer holding a power generation device or the like using natural energy (eg, sunlight). When the power generation enterprise receives a request for output suppression (suppression of reverse power flow to the electric power system) from the power transmission and distribution enterprise, it requests the enterprise providing the service to charge for avoiding the output suppression. Based on the request, charging / discharging of the storage battery of each power consumer is controlled.

  The central control unit (e.g., server 200) receives the request for output suppression sent to the power producer. In the output suppression request, a time period to be suppressed (e.g., one day the next day, 13 o'clock to 16 o'clock the next day, etc.) is determined. The suppression content is, for example, when the output [W] is set to “0” or when the upper limit of the output [W] (○% of rated output) is determined for each unit time zone (eg, 30 minutes) I think.

  Further, the central control unit acquires the power generation prediction of each power generation company (for example, the power generation prediction for each unit time zone for the next day). For example, the central control unit may be received from each generator's system or may be generated by its own unit.

  Then, the central control device calculates the power [W] suppressed at each timing, that is, the power [W] to be charged at each timing, based on the content of the request for output suppression and the power generation prediction. The amount exceeding the upper limit of the allowable output [W] is the power [W] to be suppressed. Thereafter, the central control unit allocates the power [W] to be charged at each timing to the plurality of storage batteries, and generates a charging schedule for each of the plurality of storage batteries. Then, the central control unit transmits each charging schedule to each control unit 103. The charging schedule of each storage battery is generated so that the power input / output [W] satisfies the predetermined upper limit (the upper limit of the power input / output for the surplus power absorption service predetermined for each storage battery).

  Each control device 103 receives a charging schedule for the surplus power absorption service. Then, each control device 103 determines a command value [W] for the surplus power absorbing service at each timing based on the charging schedule.

<Integrated command value [W]>
The control device 103 sets the above-described plural types of command values [W] (LFC control command value [W], GF equivalent control command value [W], energy management service command value [W], imbalance avoidance service Two or more of the command value [W], the command value for surplus power absorption service [W], etc.) are determined.

  Then, the control device 103 calculates the integrated command value [W] based on the determined plurality of types of command values [W]. Specifically, the control device 103 calculates an integrated command value [W] by adding a plurality of types of command values [W] to be charged or discharged at the same timing. For example, in the state where one of the command value [W] to be discharged and the command value [W] to be charged is indicated by a positive value and the other is indicated by a negative value, a plurality of command values [W] are added together Ru.

"Processing device 10"
Next, the processing apparatus 10 will be described. The processing apparatus 10 may be included in the power demander system 100 or may be physically and / or logically separated from the power demander system 100. For example, the control device 103 of the power demander system 100 may have the function of the processing device 10. Further, the processing device 10 may have the function of the control device 103.

  The processing device 10 calculates the amount of power [Wh] that the storage system 101 has charged or discharged according to each of the plurality of types of command values [W]. The electric energy [Wh] supplied from the electric power system to the electric power consumer system 100 and the electric energy [Wh] supplied from the electric power customer system 100 to the electric power system are smart meters (first smart meter 104). It is measured by For this reason, it is preferable that the calculation result of the electric energy [Wh] charged or discharged by the storage system 101 according to each of the plurality of types of command values [Wh] be equivalent to the result measured by the smart meter. According to the processing apparatus 10 of the present embodiment, this can be realized. This will be described below.

  First, an example of the hardware configuration of the processing apparatus 10 of the present embodiment will be described. Note that an example of the hardware configuration of the control device 103 can also be the same as an example of the hardware configuration of the processing device 10 described below.

  The respective units included in the processing apparatus 10 according to the present embodiment include a central processing unit (CPU), a memory, a program loaded into the memory, and a storage unit such as a hard disk storing the program (from the stage of shipping the apparatus in advance) In addition to stored programs, it can also store storage media such as CDs (Compact Disc), programs downloaded from servers on the Internet, etc.) Arbitrary combinations of hardware and software centered on the network connection interface Is realized by And it is understood by those skilled in the art that there are various modifications in the implementation method and apparatus.

  FIG. 2 is a block diagram illustrating the hardware configuration of the processing apparatus 10 according to the present embodiment. As shown in FIG. 2, the processing device 10 includes a processor 1A, a memory 2A, an input / output interface 3A, a peripheral circuit 4A, and a bus 5A. Peripheral circuit 4A includes various modules. The peripheral circuit 4A may not be provided.

  The bus 5A is a data transmission path for the processor 1A, the memory 2A, the peripheral circuit 4A, and the input / output interface 3A to mutually transmit and receive data. The processor 1A is, for example, an arithmetic processing unit such as a central processing unit (CPU) or a graphics processing unit (GPU). The memory 2A is, for example, a memory such as a random access memory (RAM) or a read only memory (ROM). The input / output interface 3A is an interface for acquiring information from an input device (eg, keyboard, mouse, microphone, etc.), an external device, an external server, an external sensor, etc., an output device (eg, display, speaker, printer, mailer) Etc.), an interface for outputting information to an external device, an external server, etc. The processor 1A can issue an instruction to each module and perform an operation based on the result of the operation.

  Next, the functional configuration of the processing device 10 will be described. An example of a functional block diagram of the processing device 10 is shown in FIG. As illustrated, the processing apparatus 10 includes a smart meter measurement value acquisition unit 11, a charge and discharge command value acquisition unit 12, a correction coefficient calculation unit 13, and various charge and discharge amount calculation units 14. Note that the functional block diagram does not show the configuration of hardware units, but shows blocks of function units.

The smart meter measurement value acquiring unit 11 is the amount of electric power [Wh] that the storage system 101 charges and discharges within a predetermined time T, and is a value measured by the smart meter (the second smart meter 105 in FIG. 1). The charge energy [Wh] and the discharge energy [Wh] are acquired. The predetermined time T is preferably as small as possible. The predetermined time T for acquiring the charge energy [Wh] and the discharge energy [Wh] from the second smart meter 105 may be every M minutes (e.g., every 30 minutes). The smart meter measurement value acquiring unit 11 acquires the charging power amount [Wh] and the discharging power amount [Wh] every predetermined time T. The first smart meter 104 and the second smart meter 105 continuously measure the integrated value [Wh] of the electric energy, and when there is a request, the value of the integrated electric energy at the request time is Send back. Therefore, when obtaining the integrated electricity of M min [Wh], the start time of the M frequency T _0, an end time of the M frequency and T _1, the time from the integrated electricity of the smart meters at time T ₁ T Calculated by subtracting the integrated power amount of the smart meter at ₀ .

  The charge / discharge command value acquisition unit 12 calculates a charge command amount [Wh] obtained by integrating over time the integration-side command value [W] on the charge side in the integration command value [W] within the predetermined time T, and The discharge command amount [Wh] obtained by time-integrating the discharge-side integrated command value [W] in the integrated command value [W] within the time T is acquired. The charge / discharge command value acquisition unit 12 acquires the charge command amount [Wh] and the discharge command amount [Wh] every predetermined time T.

  The integrated command value [W] on the charging side means an integrated command value [W] for charging the storage system 101. The integrated command value [W] on the discharge side means an integrated command value [W] for causing the storage system 101 to discharge. For example, if the first type of command value is a charge command value of 50 W and the second type of command value is a discharge command value of 30 W, the integrated command value is a command value to charge by 20 W (on the charging side Command value). When the first type command value is a discharge command value of 10 W and the second type command value is a discharge command value of 30 W, the integrated command value is a command value for discharging 40 W (on the discharge side) Command value).

  The charge / discharge command value acquisition unit 12 may calculate the charge command amount [Wh] and the discharge command amount [Wh]. In addition, another device (e.g., the control device 103) calculates the charge command amount [Wh] and the discharge command amount [Wh], and the charge / discharge command value acquisition unit 12 calculates the charge command amount calculated by the other device [ Wh] and the discharge command amount [Wh] may be acquired.

  The correction coefficient calculation unit 13 calculates the correction coefficient at the time of charge by dividing the charge electric energy [Wh] by the charge command amount [Wh]. Further, the correction coefficient calculation unit 13 calculates the discharge correction coefficient by dividing the discharge energy amount [Wh] by the discharge command amount [Wh]. The correction coefficient calculation unit 13 calculates the charging correction coefficient and the discharging correction coefficient every predetermined time T.

  The various charge / discharge amount calculation units 14 charge or discharge the storage system 101 according to each of the plurality of types of command values based on the charge correction coefficient, the discharge correction coefficient, and the plurality of types of command values [W]. Calculate the amount of power [Wh].

  The process of calculating the amount of electric power [Wh] charged by the power storage system 101 within the predetermined time T according to the first type of command value is, for example, as follows.

The various charge / discharge amount calculation units 14 charge command values in which the integrated command value [W] in the charge command value [W] included in the first type command value [W] within the predetermined time T is on the charge side. A product (first value) of a value [Wh] obtained by time-integrating [W] and a charge correction coefficient is calculated.
In addition, the various charge / discharge amount calculation units 14 charge commands in which the integrated command value [W] in the charge command values [W] included in the first type of command values [W] within the predetermined time T is discharged. The product (second value) of the value [Wh] obtained by time-integrating the value [W] and the correction coefficient at the time of discharge is calculated.
Then, the various charge / discharge amount calculation units 14 calculate the sum of the first value and the second value according to the first type of command value [W] according to the command value [W] of the power storage system 101 within the predetermined time T. Calculated as the quantity [Wh].

  The charge command value [W] for which the integration command value [W] is on the charge side is the integrated command value [W] obtained by adding the charge command value [W] and another type of command value [W]. Means the charge command value [W] on which the charge side is to be. The charge command value [W] for which the integration command value [W] is on the discharge side is the integrated command value [W] obtained by adding the charge command value [W] and other types of command values [W]. Means the charge command value [W] on which the discharge side is to be.

  Calculation processing of the amount of electric power [Wh] discharged by the power storage system 101 within the predetermined time T according to the first type of command value is, for example, as follows.

The various charge / discharge amount calculation units 14 are discharge command values in which the integrated command value [W] in the discharge command value [W] included in the first type command value [W] within the predetermined time T is on the charge side The product (third value) of the value [Wh] obtained by time-integrating [W] and the charge correction coefficient is calculated.
In addition, the various charge / discharge amount calculation units 14 discharge the integrated command value [W] in the discharge command value [W] included in the first type command value [W] within the predetermined time T on the discharge side. A product (fourth value) of a value [Wh] obtained by time-integrating the command value [W] and a correction coefficient at discharge is calculated.
Then, the various charge / discharge amount calculation units 14 calculate the sum of the third value and the fourth value according to the first type of the command value [W] and the electric power discharged by the storage system 101 within the predetermined time T. Calculated as the quantity [Wh].

  The discharge command value [W] for which the integration command value [W] is on the charge side is the integrated command value [W] obtained by adding the discharge command value [W] and other types of command values [W]. Means the discharge command value [W] on the charging side. The discharge command value [W] at which the integration command value [W] becomes the discharge side is the integrated command value [W] obtained by adding the discharge command value [W] and other types of command values [W]. Means the discharge command value [W] on which the discharge side is to be.

  Here, processing of the processing apparatus 10 will be described using a specific example.

Assumptions
In this example, the storage system 101 performs charging and discharging according to the integrated command value [W] obtained by adding the command value [W] for GF equivalent control and the command value [W] for energy management service. .

  Each variable is defined as shown in FIG. One section has a value smaller than a predetermined time T (e.g., 30 minutes) and is, for example, 10 seconds. t is a serial number of each section. The predetermined time T (e.g., 30 minutes) includes a section of t = 1 to t = n.

AS _discharge (t) is a value obtained by time-integrating the discharge command value [W] in the command value [W] for GF equivalent control in the section t. AS _charge (t) is a value obtained by time-integrating the charge command value [W] in the command value [W] for GF equivalent control in the interval t.

USER _discharge (t) is a value obtained by time-integrating the discharge command value [W] in the command value [W] of the energy management service in the section t. USER _charge (t) is a value obtained by time-integrating the charge command value [W] in the command value [W] of the energy management service in the section t.

ALL _discharge (t) is a value obtained by time-integrating the integrated command value [W] on the discharge side in the integrated command value [W] in the section t. ALL _charge (t) is a value obtained by time-integrating the integrated command value [W] on the charging side in the integrated command value [W] in the interval t.

SM _discharge (0) is a measured value of the discharge power integrated amount [Wh] of the storage system 101 at the start time of the predetermined time T. SM _discharge (n) is a measurement value of the discharge power integrated amount [Wh] of the storage system 101 at the end time of the predetermined time T (end time of the section n). SM _charge (0) is a measurement value of the integrated charging power amount [Wh] of the storage system 101 at the start time of the predetermined time T. SM _charge (n) is a measurement value of the charge power integrated amount [Wh] of the storage system 101 at the end time of the predetermined time T (end time of the section n). These are the measurement values of the second smart meter 105.

Here, AS _discharge (t) is the integrated value of discharge command value [W] at which integrated command value [W] is on the charge side, AS ⁺ _discharge (t), and integrated command value [W] is on the discharge side. It is classified into AS ^- _discharge (t) which is an integrated value of the discharge command value [W]. Similarly, AS _charge (t) is the integrated value of _charge command value [W] at which integrated command value [W] is on the charge side, and AS ⁺ _charge (t) and integrated command value [W] are at the discharge side. It is classified into AS ^- _charge (t) which is an integrated value of charge command value [W].

In addition, USER _discharge (t) is the integrated value of _discharge command value [W] where integrated command value [W] becomes charge side USER ⁺ _discharge (t), and integrated command value [W] becomes discharge side It is classified into USER ^- _discharge (t) which is an integrated value of discharge command value [W]. Similarly, for USER _charge (t), integrated command value [W] is the charge side, and USER ⁺ _charge (t) is the integrated value of _charge command value [W] and integrated command value [W] is on the discharge side. It is classified into USER ^- _charge (t) which is an integrated value of charge command value [W] which becomes.

A variable in which the directions of charging and discharging of the various command values [W] and the integrated command value [W] coincide with each other is a positive value, and a variable in reverse is a negative value. For example, AS ⁺ _discharge (t) is an integrated value of discharge command value [W] for which integrated command value [W] is on the charge side. This variable has a negative value. Further, AS ^- _discharge (t) is an integrated value of the discharge command value [W] at which the integrated command value [W] becomes the discharge side. This variable has a positive value. Further, AS ⁺ _charge (t) is an integrated value of the _charge command value [W] at which the integrated command value [W] is on the charge side. This variable has a positive value. Other variables are similar.

The relationship of each variable after classification can be summarized as shown in FIG. A group of “reverse power flow (discharge direction) measurement” row is a combination of variables for which the integrated command value [W] is on the discharge side. As such combinations, (USER ^- _discharge (t), AS ^- _discharge (t)), (USER ^- _discharge (t), AS ^- _charge (t)), (USER ^- _charge (t), AS ^- _discharge There are three sets of (t)). In addition, since there is no combination (USER ^- _charge (t), AS ^- _charge (t)) in which the integration command value [W] becomes the discharge side, the combination is erased by “x”.

On the other hand, the group of the line of “forward flow (charging direction) measurement” is a combination of variables for which the integrated command value [W] is on the charging side. Such combinations include (USER ⁺ _discharge (t), AS ⁺ _charge (t)), (USER ⁺ _charge (t), AS ⁺ _discharge (t)), (USER ⁺ _charge (t), AS ⁺ _charge There are three sets of (t)). It should be noted that since there is no combination of (USER ⁺ _discharge (t), AS ⁺ _discharge (t)) in which the integrated command value [W] is on the charge side, the combination is deleted by “x”.

  From the above description and the relationship in FIG. 5, the conditional expression as shown in FIG. 6 is derived.

"Calculation of discharge correction factor and charge correction factor"
Here, the correction coefficient calculation unit 13 calculates the discharge correction coefficient k _discharge using the equation (7-1) shown in FIG. 7. Further, the correction coefficient calculation unit 13 calculates the _charge correction coefficient k _charge using the equation (7-2) shown in FIG. 7.

  The left side of the equation (7-1) is the amount of power [Wh] discharged by the storage system 101 within the predetermined time T, and the amount of discharged power [Wh] which is a value measured by the second smart meter 105. Show. This value is an actual measurement value of the second smart meter 105 acquired by the smart meter measurement value acquisition unit 11.

The right side of Expression (7-1) is the product of the _discharge correction coefficient k _discharge and the discharge command amount [Wh]. The discharge command amount [Wh] is a value obtained by performing time integration on the discharge-side integrated command value [W] in the integrated command value [W] within the predetermined time T. As long resulting discharge command amount [Wh] is, the discharge time correction coefficient _{k Discharge} is calculated.

  The left side of the equation (7-2) is the amount of power [Wh] that the storage system 101 charges in a predetermined time T, and the amount of charge power [Wh] which is a value measured by the second smart meter 105 Show. This value is an actual measurement value of the second smart meter 105 acquired by the smart meter measurement value acquisition unit 11.

The right side of Formula (7-2) is the product of the _charge correction coefficient k _charge and the charge command amount [Wh]. The charge command amount [Wh] is a value obtained by time-integrating the integrated command value [W] on the charging side in the integrated command value [W] within the predetermined time T. If the charge command amount [Wh] is obtained, the charge correction coefficient k _charge is calculated.

When calculating the _charge correction coefficient k _charge and the discharge correction coefficient k _discharge within the predetermined time T, it is desirable that the predetermined time T be short to some extent. The reason is that as T becomes longer, it is assumed that the correction coefficient changes due to the influence of changes in the ambient temperature surrounding the power storage system and the like.

  Here, a method of determining the discharge command amount [Wh] and the charge command amount [Wh] will be described.

"Method 1"
In the method 1, the discharge command amount [Wh] and the charge command amount [Wh] are obtained using the equations (6-5) and (6-6) shown in FIG.

First, correction coefficient calculation unit 13 classifies each of a plurality of types of command values [W] into charge command value [W] and discharge command value [W], and further integrates command values [W] on the charge side. And the discharge side. Then, the correction coefficient calculation unit 13 determines that the integrated command value [W] is on the charge side and the discharge side for each of the charge command value [W] and the discharge command value [W] of each command value [W]. Time integration of each one, AS ⁺ _discharge (t), AS ^- _discharge (t), AS ⁺ _charge (t), AS ^- _charge (t), USER ⁺ _discharge (t), USER ^- _discharge (t), Calculate USER ⁺ _charge (t) and USER ^- _charge (t).

  For example, the control device 103 may store a plurality of types of command values [W] and integrated command values [W]. Then, the correction coefficient calculation unit 13 may perform the above process using a plurality of types of command values [W] and integrated command values [W] accumulated in the control device 103. In addition, the control device 103 may transmit the plurality of types of generated command values [W] and integrated command value [W] to the processing device 10 at any timing. Then, the processing device 10 may accumulate a plurality of types of command values [W] and integrated command values [W] received from the control device 103. The correction coefficient calculation unit 13 may perform the above process using a plurality of types of command values [W] and integrated command values [W] accumulated in the processing device 10.

Thereafter, the correction coefficient calculation unit 13 calculates ALL _discharge (t) for each of t = 1 to n using the calculated result and the equation (6-5), and adds them together to calculate the discharge command amount [ Calculate Wh]. In addition, correction coefficient calculation unit 13 calculates ALL _charge (t) for each of t = 1 to n using the result calculated above and equation (6-6), and adds them together to obtain the charge command amount. Calculate [Wh].

"Method 2"
In the method 2, the discharge command amount [Wh] and the charge command amount [Wh] are determined by further using the equations shown in FIG. 8 and FIG.

  First, when the command value [W] of the energy management service in the section is limited only to the discharge side, the equation (8-1) in FIG. 8 is obtained. Substituting the equation (8-1) into the equations (6-1) to (6-6) shown in FIG. 6, the equation (8-2) in FIG. 8 is obtained. Then, equation (8-3) is obtained by modifying equation (8-2). Expression (8-3) is an expression for obtaining a variable on the left side.

Among the plurality of variables included in the right side of the equation (8-3), only the USER ^- _discharge (t) can not obtain a value based on the measurement value of the smart meter or various command values. If the value of USER ^- _discharge (t) is obtained, the variable on the left side of equation (8-3) can be obtained.

Therefore, in the method 2, the correction coefficient calculation unit 13 calculates USER ^- _discharge (t) corresponding to each of t = 1 to n in the same manner as the method described in the method 1. That is, time integration of the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] of the energy management service is on the discharge side corresponds to each of t = 1 to n, Calculate USER ^- _discharge (t).

Then, the correction coefficient calculation unit 13 calculates the value of USER ^- _discharge (t) calculated corresponding to each of t = 1 to n, and the other of the right side of the equation (8-3) corresponding to each of t = 1 to n. The AS ⁺ _discharge (t), AS ^- _discharge (t), AS ⁺ _charge (t), and AS ^- _charge (t) are calculated for each of t = 1 to n using the values of

Thereafter, ALL _discharge (t) for each of t = 1 to n can be calculated using equation (6-5). In addition, ALL _charge (t) for each of t = 1 to n can be calculated using Expression (6-6).

  Similarly, when the command value [W] of the energy management service in the section is limited to only the charging side, the equation (9-1) in FIG. 9 is obtained. By substituting the equation (9-1) into the equations (6-1) to (6-6) shown in FIG. 6, the equation (9-2) in FIG. 9 is obtained. Then, equation (9-3) is obtained by modifying equation (9-2). Expression (9-3) is an expression for obtaining a variable on the left side.

Among the plurality of variables included in the right side of the equation (9-3), it is only USER ⁺ _charge (t) that a value can not be obtained based on the measurement value of the smart meter and various command values. If the value of USER ⁺ _charge (t) is obtained, the variable on the left side of equation (9-3) can be obtained.

Therefore, in the method 2, the correction coefficient calculation unit 13 calculates USER ⁺ _charge (t) in the same manner as the method described in the method 1, corresponding to each of t = 1 to n. That is, by integrating the charge command value [W] in which the integrated command value [W] in the charge command value [W] of the energy management service is on the charge side over time, corresponding to each of t = 1 to n, Calculate USER ⁺ _charge (t).

Then, the correction coefficient calculation unit 13 calculates the value of USER ⁺ _charge (t) calculated corresponding to each of t = 1 to n, and the other of the right side of the equation (8-3) corresponding to each of t = 1 to n. The AS ⁺ _discharge (t), AS ^- _discharge (t), AS ⁺ _charge (t), and AS ^- _charge (t) are calculated for each of t = 1 to n using the values of

Thereafter, ALL _discharge (t) for each of t = 1 to n can be calculated using equation (6-5). In addition, ALL _charge (t) for each of t = 1 to n can be calculated using Expression (6-6).

In this method, for example, in the time zone where the electricity bill is low at 23:00-07:00 at night, “charging only for customers” is set, and ALL _discharge (in the interval of 30 minutes in that time zone) The calculation of t) and ALL _charge (t) is simpler than the method 1 because the number of variables can be reduced. Similarly, in the time zone where there is a high electricity bill at 07: 00-23: 00 in the daytime, by setting it as "only for customer's discharge", ALL _discharge (t) in the interval of 30 minutes interval in that time zone The calculation of ALL _charge (t) is simpler than the method 1 because the number of variables can be reduced.

In addition, in the case of calculating the correction coefficient for the discharge command amount [Wh] and the charge command amount [Wh] in the time zone over the discharge only for customer and the time zone for only charge for customer After calculating the ALL _discharge (t) and ALL _charge (t) of the section in which the command value [W] of the energy management service is limited to the discharge side and the section in which it is limited to the charge side only The amount [Wh] and the charge command amount [Wh] are calculated. Specifically, by adding ALL _discharge (t) of the section in which the energy management service command value [W] is limited to the discharge side only and ALL _discharge (t) of the section limited to the charge side only, The discharge command amount [Wh] is calculated. Similarly, the charge command can be obtained by adding together the ALL _charge (t) of the section in which the command value [W] of the energy management service is limited to the charging side only and the ALL _charge (t) of the section limited to the discharging side only. Calculate the quantity [Wh].

  In addition, when adopting method 2, it is necessary to limit the command value [W] of the energy management service in the section (within the unit time) to either the discharge side or the charge side. The control device 103 may perform the control.

“Calculation of the amount of electric power [Wh] charged or discharged according to each of a plurality of command values [W]”
As described above, when the values of the charge correction coefficient, the discharge correction coefficient, and the various variables are obtained, the various charge / discharge amount calculation units 14 use the formulas shown in FIG. According to each, the electric energy [Wh] charged or discharged in each section is calculated.

  The frequency control discharge electric energy [Wh] shown is the electric energy [Wh] discharged by GF equivalent control. Frequency control charge electric energy [Wh] is electric energy [Wh] charged by GF equivalent control. The customer discharge electric energy [Wh] is the electric energy discharged by the energy management service [Wh]. The customer charge electric energy [Wh] is the electric energy [Wh] charged by the energy management service.

  In the calculation of the amount of power using the correction factor (the correction factor for charging and the correction factor for discharging), since the meter value of the smart meter is the correct value that can be charged according to the weighing method, the value of the correction factor is from 1 to In the case of a large deviation, the reliability of the correction decreases. Therefore, the range of correction coefficients that can be used to calculate the amount of power may be limited to 1 ± 0.1 or the like.

"Modification"
Here, a modified example will be described. In the above method 1 and method 2, the processing apparatus _{^{10, AS + discharge (t),}} AS - discharge (t), AS + charge (t), AS - charge (t), USER + discharge (t), USER - It was shown to calculate _discharge (t), USER ⁺ _charge (t), and USER ^- _charge (t). In a modification, the control device 103 may perform the above calculation. Then, the processing device 10 obtains the value calculated by the control device 103, and based on the value, the charge-time correction coefficient, the discharge-time correction coefficient, and the electric power charged or discharged according to each of the plural types of command values [W]. The amount [Wh] may be calculated.

As another modification, FIG. 1 separately shows the storage system 101 and the control device 103, and shows an example in which these are provided physically and / or logically separated. However, the storage system 101 and the control device 103 may be physically and / or logically integrated. For example, the PCS of the storage system 101 may have the function of the control device 103. Alternatively, control device 103 may be provided physically and / or logically separately from PCS in power storage system 101. In this case, the PCS is AS ⁺ _discharge (t), AS ^- _discharge (t), AS ⁺ _charge (t), AS ^- _charge (t), USER ⁺ _discharge (t), USER ^- _discharge (t), USER ⁺ The calculation of _charge (t) and USER ^- _charge (t) may be performed. Also, the PCS of the storage system 101 may have the function of the processing device 10. Alternatively, the processor 10 may be provided physically and / or logically separated from the PCS in the storage system 101.

  According to the processing apparatus 10 of the present embodiment described above, it is possible to calculate the amount of power [Wh] that the storage system 101 has charged or discharged according to each of the plurality of types of command values [W]. In addition, by calculating and correcting with the charge correction coefficient and the discharge correction coefficient, it is possible to obtain the same result as in the case of measuring the various electric energy [Wh] with the smart meter.

Hereinafter, an example of a reference form is added.
1. The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount obtaining means for obtaining a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh];
Processing apparatus having:
2. In the processing device described in 1,
The command value [W] includes a charge command value [W] and a discharge command value [W].
The various charge / discharge amount calculation means
Obtained by integrating over time the charge command value [W] in which the integrated command value [W] in the charge command value [W] included in the first type of the command value [W] is on the charge side The integrated command value [W] in the charge command value [W] contained in the product of the charge value [Wh] and the charge correction coefficient, and the command value [W] of the first type is discharged The sum of the product of the value [Wh] obtained by time-integrating the charge command value [W] on the side and the product of the discharge correction coefficient according to the command value [W] of the first type A processing device for calculating the amount of power [Wh] charged by the power storage system within the predetermined time.
3. In the processing device described in 1 or 2,
The command value [W] includes a charge command value [W] and a discharge command value [W].
The various charge / discharge amount calculation means
Obtained by temporally integrating the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] included in the first type of the command value [W] is on the charge side The integrated command value [W] in the discharge command value [W] contained in the product of the charge value [Wh] and the charge correction coefficient, and the command value [W] of the first type is discharged The sum of the product of the value [Wh] obtained by time-integrating the discharge command value [W] on the side and the product of the discharge correction coefficient according to the command value [W] of the first type A processing device for calculating the amount of power [Wh] discharged by the power storage system within the predetermined time.
4. In the processing device according to any one of 1 to 3,
The processing device, wherein the correction coefficient calculation means calculates the charge correction coefficient and the discharge correction coefficient at each predetermined time.
5. In the processing apparatus according to any one of 1 to 4,
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W], controls a storage battery, and charges and discharges with the integrated command value [W];
A unit for limiting at least one of the command value [W] to only one of the charge command value [W] and the discharge command value [W] during the unit time;
The processing apparatus which further has.
6. A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W], controls a storage battery, and charges and discharges with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value A unit for calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side;
A control device having
7. In the control device described in 6,
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount obtaining means for obtaining a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh];
The control device further having
8. In the control device described in 6 or 7,
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W], controls a storage battery, and charges and discharges with the integrated command value [W];
A unit for limiting at least one of the command value [W] to only one of the charge command value [W] and the discharge command value [W] during the unit time;
A control device having
9. A PCS for controlling a storage battery, comprising the processing device according to any one of 1 to 5.
10. A PCS for controlling a storage battery, comprising the control device according to any one of 6 to 8.
11. The computer is
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring step of acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time A charge / discharge command amount acquisition step of acquiring a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side among the values [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. A correction coefficient calculation step of calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation steps for calculating [Wh];
How to perform processing.
12. Computer,
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquisition means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values,
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount acquisition means for acquiring a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W],
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient,
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh],
A program to function as
13. The computer is
Calculating an integrated command value [W] by adding a plurality of types of command values [W], controlling a storage battery to charge and discharge with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value Calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side;
Control method to execute.
14. Computer,
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W] and controls a storage battery to charge / discharge with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value Means for calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side,
A program to function as

1A processor 2A memory 3A input / output I / F
4A Peripheral Circuit 5A Bus 10 Processing Device 11 Smart Meter Measured Value Acquisition Unit 12 Charge / Discharge Command Value Acquisition Unit 13 Correction Coefficient Calculation Unit 14 Various Charge / Discharge Calculation Unit 100 Power Demander System 101 Storage System 102 Load Group 103 Control Device 104 One smart meter 105 Second smart meter 106 Sensor 200 Server 300 Network

Claims (14)

The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount obtaining means for obtaining a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh];
Processing apparatus having: In the processing device according to claim 1,
The command value [W] includes a charge command value [W] and a discharge command value [W].
The various charge / discharge amount calculation means
Obtained by integrating over time the charge command value [W] in which the integrated command value [W] in the charge command value [W] included in the first type of the command value [W] is on the charge side The integrated command value [W] in the charge command value [W] contained in the product of the charge value [Wh] and the charge correction coefficient, and the command value [W] of the first type is discharged The sum of the product of the value [Wh] obtained by time-integrating the charge command value [W] on the side and the product of the discharge correction coefficient according to the command value [W] of the first type A processing device for calculating the amount of power [Wh] charged by the power storage system within the predetermined time. In the processing device according to claim 1 or 2,
The command value [W] includes a charge command value [W] and a discharge command value [W].
The various charge / discharge amount calculation means
Obtained by temporally integrating the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] included in the first type of the command value [W] is on the charge side The integrated command value [W] in the discharge command value [W] contained in the product of the charge value [Wh] and the charge correction coefficient, and the command value [W] of the first type is discharged The sum of the product of the value [Wh] obtained by time-integrating the discharge command value [W] on the side and the product of the discharge correction coefficient according to the command value [W] of the first type A processing device for calculating the amount of power [Wh] discharged by the power storage system within the predetermined time. The processing device according to any one of claims 1 to 3.
The processing device, wherein the correction coefficient calculation means calculates the charge correction coefficient and the discharge correction coefficient at each predetermined time. The processing apparatus according to any one of claims 1 to 4.
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W], controls a storage battery, and charges and discharges with the integrated command value [W];
A unit for limiting at least one of the command value [W] to only one of the charge command value [W] and the discharge command value [W] during the unit time;
The processing apparatus which further has. A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W], controls a storage battery, and charges and discharges with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value A unit for calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side;
A control device having In the control device according to claim 6,
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount obtaining means for obtaining a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh];
The control device further having In the control device according to claim 6 or 7,
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W], controls a storage battery, and charges and discharges with the integrated command value [W];
A unit for limiting at least one of the command value [W] to only one of the charge command value [W] and the discharge command value [W] during the unit time;
A control device having   The PCS which controls the storage battery including the processing unit according to any one of claims 1 to 5.   A PCS for controlling a storage battery, comprising the control device according to any one of claims 6 to 8. The computer is
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquiring step of acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values;
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time A charge / discharge command amount acquisition step of acquiring a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side among the values [W];
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. A correction coefficient calculation step of calculating a coefficient;
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation steps for calculating [Wh];
How to perform processing. Computer,
The amount of power [Wh] charged / discharged within a predetermined time by the storage system performing charging / discharging according to the integrated command value [W] obtained by adding a plurality of command values [W], and measured by the smart meter Smart meter measurement value acquisition means for acquiring charge electric energy [Wh] and discharge electric energy [Wh] which are values,
A charge command amount [Wh] obtained by integrating over time the integration command value [W] on the charging side of the integration command value [W] within the predetermined time, and the integration command within the predetermined time Charge / discharge command amount acquisition means for acquiring a discharge command amount [Wh] obtained by time-integrating the integrated command value [W] on the discharge side in the value [W],
The charge correction amount is calculated by dividing the charge amount [Wh] by the charge command amount [Wh], and the discharge correction amount is calculated by dividing the discharge amount [Wh] by the discharge command amount [Wh]. Correction coefficient calculation means for calculating a coefficient,
The amount of power charged or discharged by the storage system according to each of the plurality of command values [W] based on the charge correction coefficient, the discharge correction coefficient, and the plurality of command values [W] Various charge / discharge amount calculation means for calculating [Wh],
A program to function as The computer is
Calculating an integrated command value [W] by adding a plurality of types of command values [W], controlling a storage battery to charge and discharge with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value Calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side;
Control method to execute. Computer,
A unit that calculates an integrated command value [W] by adding a plurality of types of command values [W] and controls a storage battery to charge / discharge with the integrated command value [W];
The charge command value [W] for which the integrated command value [W] in the charge command value [W] is on the charge side corresponding to at least a part of the plurality of types of command values [W] The value [Wh] obtained by integration, the integrated command value [W] in the charge command value [W] becomes the discharge side, and the value obtained by performing time integration of the charge command value [W] [ Wh], a value [Wh] obtained by integrating over time the discharge command value [W] in which the integrated command value [W] in the discharge command value [W] is on the charge side, and the discharge command value Means for calculating a value [Wh] obtained by integrating over time the discharge command value [W] at which the integrated command value [W] in [W] becomes the discharge side,
A program to function as

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