JP2012060833A - Ancillary service provision apparatus using power storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ancillary service provision apparatus using a power storage device capable of, while considering a life time of the power storage device, providing ancillary service.SOLUTION: An ancillary service provision apparatus 100 using a power storage device includes: a first acquisition part 110 acquiring an allowed life consumption value indicating life consumption of a consumer-side power storage device 210 allowed for providing ancillary service; a control signal transmission part 120 transmitting a control signal causing the consumer-side power storage device 210 to perform charge or discharge for causing the consumer-side power storage device 210 to provide the ancillary service; and a second acquisition part 130 acquiring a life consumption value indicating a life time consumed by the consumer-side power storage device 210 which has performed the charge or discharge in accordance with the control signal. The control signal transmission part 120 repeatedly transmits the control signal to the consumer-side power storage device 210 until the acquired life consumption value exceeds the allowed life consumption value.

Description

  The present invention relates to an ancillary service providing apparatus that provides an ancillary service for performing supply and demand control of a power system to which the power storage device is connected using a power storage device that repeats charging and discharging.

  2. Description of the Related Art In recent years, attention has been focused on a method for controlling supply and demand of an electric power system using a power storage device such as a secondary battery. Here, conventionally, there has been proposed a method of utilizing the remaining capacity of a power storage device owned by a consumer for providing an ancillary service (see, for example, Patent Document 1). According to this method, by utilizing the high-speed response and overload capability of the secondary battery arranged in the customer's facility premises, load frequency control, instantaneous reserve, operation reserve, standby reserve, Alternatively, by providing ancillary services such as voltage maintenance, power supply and demand can be controlled.

JP 2003-284244 A

  Here, when the power storage device is used for providing ancillary service, it is important to control the power storage device while taking the life into consideration so as not to adversely affect the life of the power storage device. However, in the above conventional method, since the life of the power storage device is not considered, there is a problem that the life of the power storage device may be adversely affected.

  Therefore, the present invention has been made in view of such problems, and in the case where the power storage device is utilized for providing an ancillary service, an ancillary service can be provided while considering the life of the power storage device. An object of the present invention is to provide an ancillary service providing apparatus using a power storage device.

  In order to achieve the above object, an ancillary service providing device using a power storage device according to the present invention uses a power storage device that repeats charging and discharging to control supply and demand of the power system to which the power storage device is connected. An ancillary service providing device for providing an ancillary service for performing a first acquisition unit for acquiring an allowable lifetime consumption value indicating a lifetime consumption of the power storage device allowed to provide the ancillary service; In order to provide the power storage device with ancillary service, a control signal transmission unit that transmits a control signal for charging or discharging the power storage device and the power storage device that has been charged or discharged according to the control signal are consumed. A second acquisition unit that acquires a lifetime consumption value indicating a lifetime, and the control signal transmission unit is configured such that the acquired lifetime consumption value is the allowable lifetime. To greater than costs value, and transmits the control signal to repeatedly the power storage device.

  According to this, the control signal is repeatedly transmitted to the power storage device until the life consumption value of the power storage device that is charged or discharged according to the control signal for providing the ancillary service exceeds the allowable life consumption value. In other words, the ancillary service is provided to the power storage device until the life allowed by the power storage device. Accordingly, the consumer can provide the ancillary service with the remaining capacity of the power storage device within an allowable range that does not adversely affect the life while considering the life of the power storage device. Therefore, when the power storage device is used for providing an ancillary service, the ancillary service can be provided while considering the life of the power storage device.

  Preferably, the first acquisition unit further acquires a permissible period that is a permissible period for allowing the power storage device to provide ancillary service, and calculates the permissible lifetime consumption value within the permissible period. And the second acquisition unit acquires the lifetime consumption value within a charge / discharge period in which the power storage device is charged or discharged according to the control signal, and an ancillary service using the power storage device The providing apparatus further includes a determination unit that determines whether or not the lifetime consumption value exceeds the allowable lifetime consumption value, and determines whether or not the charge / discharge period exceeds the allowable period, The control signal transmission unit repeats until it is determined that the lifetime consumption value exceeds the allowable lifetime consumption value or until it is determined that the charge / discharge period exceeds the allowable period. Returns transmits the control signal to the power storage device.

  According to this, until it is determined that the lifetime consumption value of the power storage device exceeds the allowable lifetime consumption value or until it is determined that the charge / discharge period of the power storage device exceeds the allowable period, Send a control signal. That is, the power storage device is provided with an ancillary service until the power storage device has an allowable life or an allowable charge / discharge period. Thereby, the consumer can provide the remaining capacity of the power storage device to the ancillary service within a charge / discharge period that does not impair the convenience of the original use of the power storage device while considering the life of the power storage device. Therefore, when the power storage device is used for providing an ancillary service, the ancillary service can be provided while considering the charge / discharge period in addition to the life of the power storage device.

  Preferably, the second acquisition unit acquires a unit lifetime consumption value indicating a lifetime consumed by the power storage device every time the control signal transmission unit transmits the control signal, and acquires the unit lifetime consumption value within the charge / discharge period. By calculating a value obtained by integrating the unit lifetime consumption values as the lifetime consumption value, the lifetime consumption value within the charge / discharge period is acquired.

  According to this, the lifetime consumption value within the charge / discharge period is obtained by calculating the lifetime consumption value obtained by integrating the unit lifetime consumption value consumed by the power storage device each time the control signal is transmitted within the charge / discharge period. To do. Thereby, since the lifetime consumption value of the power storage device within the charge / discharge period can be grasped at any time, an ancillary service can be provided while considering the life of the power storage device.

  Preferably, the second acquisition unit acquires the unit life consumption value from the cycle life corresponding to the depth of discharge and the charge depth obtained from the life characteristics of the power storage device, and acquires the unit life consumption value within the charge / discharge period. By calculating a value obtained by integrating the unit lifetime consumption values as the lifetime consumption value, the lifetime consumption value within the charge / discharge period is acquired.

  According to this, the unit life consumption value is obtained from the cycle life corresponding to the discharge depth and the charge depth from the life characteristics of the power storage device, and the unit life consumption value within the charge / discharge period is integrated to obtain the life consumption. Calculate the value. For this reason, the lifetime consumption value can be easily calculated by grasping the lifetime characteristics of the power storage device in advance.

  In addition, the second acquisition unit calculates the lifetime consumption value by using the total value of the charge / discharge power amount within the charge / discharge period of the power storage device, so that the lifetime consumption within the charge / discharge period is calculated. You may decide to acquire a value.

  According to this, the lifetime consumption value in the charging / discharging period is acquired by calculating the lifetime consumption value using the total value of the charge / discharge electric energy within the charging / discharging period of the power storage device. For this reason, a lifetime consumption value can be easily calculated using the total value of the charge / discharge electric energy within the charge / discharge period of the power storage device.

  Preferably, the first acquisition unit is configured to charge the power storage device when the charging according to the control signal is predicted not to be charged up to a predetermined charge amount within a predetermined period. A period in which charging according to the control signal is allowed in order to charge up to the predetermined charging amount within the period is acquired as the allowable period.

  According to this, when it is predicted that the power storage device will not be charged to a predetermined charge amount within a predetermined period in charging according to the control signal, the power storage device is charged to a predetermined charge amount within the predetermined period. Therefore, a period in which charging according to the control signal is allowed is acquired as an allowable period. For example, when the power storage device is a storage battery of an electric vehicle, charging according to the control signal may not be completed at the time when the user wants to use the electric vehicle. In this case, the charging of the storage battery of the electric vehicle is stopped according to the control signal, and the allowable period is determined and charged so that the charging is completed at the time that the user wants to use. As a result, a power storage device such as a storage battery of an electric vehicle can be charged up to a predetermined charge amount within a predetermined period, so that the remaining capacity of the power storage device can be reduced without impairing the convenience of the original use of the power storage device. Can be provided to the service.

  Preferably, the apparatus further includes a price calculation unit that calculates a price for the power storage device to provide an ancillary service using the lifetime consumption value.

  According to this, the compensation for the power storage device providing the ancillary service is calculated using the lifetime consumption value. In other words, the life of the power storage device is consumed by providing the ancillary service by the power storage device, but the compensation according to the life consumption value of the power storage device provided by the ancillary service is calculated. Here, it is very important to consider the lifetime when calculating the compensation for the storage device to provide the ancillary service, but in the conventional method, the ancillary consideration is calculated from the viewpoint of the lifetime. It wasn't something to do. For this reason, the consumer who owns the said electrical storage apparatus can obtain the price commensurate with the lifetime consumption value of the electrical storage apparatus by provision of the said ancillary service.

  Preferably, the consideration calculation unit calculates the consideration by multiplying the lifetime consumption value by a weighting coefficient.

  According to this, the consideration is calculated by multiplying the lifetime consumption value by the weighting coefficient. In other words, the larger value is calculated as the lifetime consumption value of the power storage device is larger. For this reason, the consumer who owns the said electrical storage apparatus can obtain much consideration, so that the lifetime consumption value of the electrical storage apparatus by provision of the said ancillary service is large.

  In addition, the consideration calculation unit multiplies a value obtained by multiplying the lifetime consumption value by a weighting factor, and a value obtained by multiplying an output that the power storage device provides an ancillary service at a predetermined time within the charge / discharge period with a weight function. The value may be calculated by adding a value accumulated within the charge / discharge period and subtracting a predetermined value.

  According to this, the value obtained by multiplying the value obtained by multiplying the lifetime consumption value by the weighting coefficient and multiplying the output that provides the ancillary service by the power storage device at the predetermined time within the charge / discharge period within the charge / discharge period is integrated. The consideration is calculated by adding the calculated values and subtracting the predetermined value. That is, the total of (1) consideration according to the lifetime consumption value of the power storage device, (2) consideration for providing the ancillary service within the charge / discharge period, and (3) discounting of the consideration is calculated as the consideration. Here, in (2) above, within the charge / discharge period, the output power provides ancillary service even if the power storage device has not consumed its life (even if it is waiting). Therefore, the compensation according to the output of the power storage device is calculated. For this reason, the consumer who owns the said electrical storage apparatus can obtain the consideration according to the said output in a charging / discharging period in addition to the consideration according to the lifetime consumption value of an electrical storage apparatus.

  In order to achieve the above object, a power storage device according to the present invention is a power storage device connected to a power system and controlled via a communication network by an ancillary service providing device that provides an ancillary service, A storage battery; and a storage control unit that charges or discharges the storage battery, wherein the storage control unit displays an allowable lifetime consumption value indicating a lifetime consumption of the storage battery that is allowed for providing an ancillary service. A control signal for charging or discharging the storage battery to provide an ancillary service is acquired from the storage information transmission unit to be transmitted to the service providing device and the ancillary service providing device that has received the allowable lifetime consumption value. A control signal acquisition unit and a charging power value charged by the storage battery according to the acquired control signal or A charge / discharge signal generator for generating a charge / discharge signal indicating a discharge power value to be charged, and the charge / discharge signal generated to charge or discharge the storage battery with the charge power value or the power of the discharge power value. A charge / discharge signal transmitting unit for transmitting to the storage battery, a life consumption value calculating unit for calculating a lifetime consumption value indicating a lifetime consumed by the storage battery charged or discharged according to the charge / discharge signal, and the calculated lifetime consumption A lifetime consumption value transmitting unit that transmits a value to the ancillary service providing apparatus.

  According to this, the lifetime of the storage battery that has been charged or discharged in accordance with the control signal from the ancillary service providing apparatus while transmitting the allowable lifetime consumption value allowed for providing the ancillary service to the ancillary service providing apparatus. The consumption value is calculated and transmitted to the ancillary service providing apparatus. That is, the power storage device calculates the lifetime consumption value, and transmits the allowable lifetime consumption value and the lifetime consumption value to the ancillary service providing device, so that the ancillary service providing device receives the received allowable lifetime consumption value and lifetime consumption value. The ancillary service can be provided to the power storage device until the power storage device has an acceptable life. Accordingly, the consumer can provide the ancillary service with the remaining capacity of the power storage device within an allowable range that does not adversely affect the life while considering the life of the power storage device. Therefore, when the power storage device is used for providing an ancillary service, the ancillary service can be provided while considering the life of the power storage device.

  Preferably, the lifetime consumption value calculation unit acquires a unit lifetime consumption value indicating a lifetime consumed by the storage battery every time the control signal acquisition unit acquires the control signal from the ancillary service providing device, By accumulating the unit life consumption value acquired within the charge / discharge period, which is the period during which the storage battery is charged or discharged according to the control signal, the life consumption value within the charge / discharge period is calculated, The lifetime consumption value transmission unit transmits the lifetime consumption value within the charge / discharge period to the ancillary service providing apparatus.

  According to this, every time a control signal is acquired from the ancillary service providing device, the unit life consumption value is acquired, and the unit life consumption value acquired during the charge / discharge period is integrated to thereby calculate the life within the charge / discharge period. The consumption value is calculated and transmitted to the ancillary service providing apparatus. Thereby, since the ancillary service providing apparatus can grasp | ascertain the lifetime consumption value of the electrical storage apparatus in a charge / discharge period at any time, it can provide an ancillary service in consideration of the lifetime of an electrical storage apparatus.

  Preferably, the lifetime consumption value calculation unit acquires the unit lifetime consumption value from the cycle lifetime corresponding to the depth of discharge and the charge depth obtained from the lifetime characteristics of the storage battery, and acquires the unit lifetime consumption value within the charge / discharge period. The lifetime consumption values within the charge / discharge period are calculated by integrating the unit lifetime consumption values.

  According to this, by obtaining the unit life consumption value from the cycle life corresponding to the discharge depth and the charge depth, and accumulating the unit life consumption value obtained within the charge / discharge period, the life consumption within the charge / discharge period is obtained. Calculate the value. For this reason, the lifetime consumption value can be easily calculated by grasping the lifetime characteristics of the storage battery in advance.

  Further, the lifetime consumption value calculation unit uses the total value of the charge / discharge power amount of the storage battery within the charge / discharge period in which the storage battery is charged or discharged according to the control signal, You may decide to calculate the said lifetime consumption value in the inside.

  According to this, the lifetime consumption value in a charging / discharging period is calculated using the total value of the charging / discharging electric energy of the storage battery in a charging / discharging period. For this reason, a lifetime consumption value is easily computable using the total value of the charging / discharging electric energy in the said charging / discharging period.

  Preferably, the power storage information transmission unit moves the storage battery to the predetermined period when it is predicted that the storage battery will not be charged to a predetermined charge amount within a predetermined period by charging according to the control signal. A period in which charging according to the control signal is allowed to be charged in order to charge up to the predetermined charge amount is acquired as an allowable period, and the allowable period and the allowable lifetime consumption value within the allowable period are Sent to ancillary service provider.

  According to this, when it is predicted that charging according to the control signal from the ancillary service providing apparatus will not charge the storage battery to the predetermined charge amount within the predetermined period, the storage battery is stored within the predetermined period within the predetermined period. A period in which charging according to the control signal is allowed to charge up to the charging amount is acquired as an allowable period, and the allowable period and an allowable lifetime consumption value within the allowable period are transmitted to the ancillary service providing apparatus. For example, when the power storage device is a storage battery of an electric vehicle, charging according to the control signal may not be completed at the time when the user wants to use the electric vehicle. In this case, the charging of the storage battery of the electric vehicle is stopped according to the control signal, and the allowable period is determined and charged so that the charging is completed at the time that the user wants to use. As a result, a power storage device such as a storage battery of an electric vehicle can be charged up to a predetermined charge amount within a predetermined period, so that the remaining capacity of the power storage device can be reduced without impairing the convenience of the original use of the power storage device. Can be provided to the service.

  The present invention can be realized not only as an ancillary service providing device or an electricity storage device using such an electricity storage device but also as an ancillary device using an electricity storage device including the ancillary service providing device and the electricity storage device. It can also be realized as a rally service providing system. Moreover, it can also be realized as an ancillary service providing method or a power storage method using a power storage device that uses a process performed by each processing unit included in the ancillary service providing device or the power storage device using such a power storage device. In addition, the ancillary service providing method using the power storage device or a characteristic process included in the power storage method can be realized as a program for causing a computer to execute. Needless to say, such a program can be distributed via a recording medium such as a CD-ROM and a transmission medium such as the Internet. In addition, it can be realized as an ancillary service providing device using a power storage device or an integrated circuit including a characteristic processing unit included in the power storage device.

  According to the present invention, an ancillary service providing apparatus for performing power supply and demand control using a power storage device can provide an ancillary service in consideration of the life of the power storage device.

It is a figure which shows the structure of the ancillary service provision system provided with the ancillary service provision apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the function structure of the ancillary service provision apparatus which concerns on Embodiment 1 of this invention, and an electrical storage apparatus in a consumer. It is a figure which shows an example of the electrical storage data table which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the electrical storage information table which concerns on Embodiment 1 of this invention. It is a flowchart which shows an example of operation | movement of the ancillary service provision apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows an example of operation | movement of the electrical storage apparatus in a consumer which concerns on Embodiment 1 of this invention. It is a figure explaining the operation | movement which the ancillary service provision apparatus and consumer power storage apparatus which concern on Embodiment 1 of this invention perform. It is a figure explaining the unit lifetime consumption value which the lifetime consumption value calculation part which concerns on Embodiment 1 of this invention acquires. It is a figure for demonstrating the lifetime consumption value which the 2nd acquisition part which concerns on the modification 1 of Embodiment 1 of this invention acquires. It is a figure explaining the process in which the electrical storage information transmission part which concerns on the modification 2 of Embodiment 1 of this invention acquires an allowable period. It is a flowchart which shows an example of operation | movement of the ancillary service provision apparatus which concerns on the modification 3 of Embodiment 1 of this invention. It is a flowchart which shows an example of operation | movement of the electrical storage apparatus in a consumer which concerns on the modification 3 of Embodiment 1 of this invention. It is a flowchart which shows an example of the process in which the 2nd acquisition part which concerns on Embodiment 2 of this invention acquires a lifetime consumption value.

  Hereinafter, an ancillary service providing apparatus using a power storage device according to an embodiment of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram showing a configuration of an ancillary service providing system 10 including an ancillary service providing apparatus 100 according to Embodiment 1 of the present invention.

  As shown in the figure, an ancillary service providing system 10 is an ancillary service providing system using a power storage device, and includes an ancillary service providing device 100 and a power storage device 200. The ancillary service providing device 100 and the power storage device 200 are connected via a communication network 310, and the power storage device 200 is electrically connected to the power system 320.

  Here, the power system 320 is a power network for supplying power to load devices that use power. For example, load devices installed in an office building 321, a general home 322, a general home 323, a factory 324, and the like. To supply power to the load device. In the figure, the office building 321, the general household 323, and the factory 324 are provided with solar power generation equipment, but any power generation equipment and load equipment may be connected to the power system 320. Absent.

  The ancillary service providing apparatus 100 is an ancillary service providing apparatus using a power storage device, and an ancillary service for controlling supply and demand of the power system 320 by controlling the power storage device 200 via the communication network 310. Is a device that provides That is, the ancillary service providing apparatus 100 is a computer that provides a so-called ancillary service that adjusts system power for frequency control of the power system 320.

  Here, providing an ancillary service means performing load frequency control of the electric power system 320, providing a blink reserve, an operation reserve, a standby reserve, or maintaining a voltage.

  Further, the ancillary service providing apparatus 100 is linked to a conventional EMS 400 (a supply and demand control system of a central power supply command center) that is connected to the communication network 310 and performs supply and demand control of the entire commercial power system, and exchanges information. It can be performed. Note that the ancillary service providing apparatus 100 may be configured as a part of the function of the conventional EMS 400.

  The ancillary service providing apparatus 100 is realized by executing a program by a dedicated computer system or a general-purpose computer system such as a personal computer. Details of the ancillary service providing apparatus 100 will be described later.

  The power storage device 200 includes a plurality of power storage devices that repeat charging and discharging. Specifically, the power storage device 200 includes secondary batteries 201a to 201g and electric vehicle storage batteries 202a to 202e as the plurality of power storage devices. The number of secondary batteries 201a to 201g and electric vehicle storage batteries 202a to 202e included in the power storage device 200 is not particularly limited, and may be any number.

  The secondary batteries 201 a to 201 g are secondary batteries that are connected to the power system 320 and installed. That is, the secondary batteries 201 a to 201 g are power storage devices that charge power supplied from the power system 320 and discharge power to the power system 320.

  Here, the secondary batteries 201a to 201e are dedicated secondary batteries for performing supply and demand control of the power system 320, and are installed by an electric power company, for example. In addition, the secondary battery 201f is installed in a general household 323, such as peak shift, instantaneous voltage drop countermeasure, power failure compensation, storage of surplus power generated from a distributed power source installed on the customer side, etc. It is a secondary battery installed for the purpose. In addition, the secondary battery 201g is installed in the factory 324 and, like the secondary battery 201f, is generated from peak shift, instantaneous voltage drop countermeasures, power failure compensation, and a distributed power source installed on the customer side. It is a secondary battery installed for the purpose of storage of surplus power.

  The electric vehicle storage batteries 202a to 202e are storage batteries built in the electric vehicle. In other words, when the electric vehicle storage batteries 202a to 202e are connected to the power system 320, they can charge the power supplied from the power system 320 and discharge the power to the power system 320.

  Then, among the plurality of power storage devices included in the power storage device 200, the secondary battery 201f in the general household 323, the secondary battery 201g in the factory 324, and the storage batteries 202a to 202e for the electric vehicles are provided for providing ancillary service. Hereinafter, the device is referred to as a consumer power storage device 210.

  That is, the ancillary service providing apparatus 100 provides an ancillary service for performing supply and demand control of the power system 320 using the consumer power storage device 210. Note that the consumer power storage device 210 may include a single power storage device or a plurality of power storage devices. The detailed configuration of the consumer power storage device 210 will be described later.

  Next, detailed configurations of the ancillary service providing apparatus 100 and the consumer power storage apparatus 210 will be described.

  FIG. 2 is a block diagram illustrating functional configurations of the ancillary service providing apparatus 100 and the consumer power storage apparatus 210 according to the first embodiment.

First, the functional configuration of the ancillary service providing apparatus 100 will be described.
The ancillary service providing device 100 is a computer that provides an ancillary service to the power system 320 by controlling the in-customer power storage device 210 via the communication network 310. As shown in the figure, the ancillary service providing apparatus 100 includes a first acquisition unit 110, a control signal transmission unit 120, a second acquisition unit 130, a determination unit 140, a consideration calculation unit 150, and a storage unit 160.

  The 1st acquisition part 110 acquires the allowable lifetime consumption value which shows the lifetime consumption of the electrical storage apparatus 210 in a consumer permitted in order to provide an ancillary service. Specifically, the first acquisition unit 110 further acquires an allowable period that is an allowable period for causing the consumer power storage device 210 to provide ancillary service, and calculates an allowable lifetime consumption value within the allowable period. get.

  The control signal transmission unit 120 transmits a control signal that causes the consumer power storage device 210 to charge or discharge in order to allow the consumer power storage device 210 to provide an ancillary service.

  Specifically, the control signal transmission unit 120 repeatedly repeats until the lifetime consumption value acquired by the second acquisition unit 130 to be described later exceeds the allowable lifetime consumption value acquired by the first acquisition unit 110. A control signal is transmitted to.

  More specifically, the control signal transmission unit 120 determines that the life consumption value exceeds the allowable life consumption value or the charge / discharge period exceeds the allowable period acquired by the first acquisition unit 110. The control signal is repeatedly transmitted to the consumer power storage device 210 until it is determined that the power is stored. Here, the charge / discharge period is a period during which the consumer power storage device 210 is charged or discharged in accordance with the control signal transmitted by the control signal transmission unit 120.

  The second acquisition unit 130 acquires a lifetime consumption value indicating the lifetime consumed by the consumer power storage device 210 that has been charged or discharged according to the control signal transmitted by the control signal transmission unit 120. Specifically, the 2nd acquisition part 130 acquires the said lifetime consumption value in the charging / discharging period in which the electrical storage apparatus 210 in a consumer performed charging or discharging according to the said control signal.

  The determination unit 140 determines whether the lifetime consumption value acquired by the second acquisition unit 130 exceeds the allowable lifetime consumption value acquired by the first acquisition unit 110, and the charge / discharge period is determined by the first acquisition unit. It is determined whether or not the allowable period acquired by 110 is exceeded.

  The consideration calculation unit 150 uses the lifetime consumption value to calculate a compensation for the consumer power storage device 210 to provide the ancillary service. A detailed description of how the consideration calculating unit 150 calculates the consideration will be described later.

  The storage unit 160 is a semiconductor memory or the like that stores a power storage information table 161 that is a data table used to provide an ancillary service by the ancillary service providing apparatus 100. The power storage information table 161 will be described later.

  The ancillary service providing apparatus 100 includes a display unit such as a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display), and an input unit such as a keyboard or a mouse, in addition to the processing unit. May be.

Next, the functional configuration of the consumer power storage device 210 will be described.
As shown in the figure, each power storage device included in the consumer power storage device 210 includes a power storage control unit 250 and a storage battery 260. The power storage control unit 250 is a processing unit that controls the storage battery 260 and is incorporated in, for example, an inverter. The storage battery 260 is a storage battery that charges and discharges according to instructions from the power storage control unit 250.

  The power storage control unit 250 includes a power storage information transmission unit 251, a control signal acquisition unit 252, a charge / discharge signal generation unit 253, a charge / discharge signal transmission unit 254, a life consumption value calculation unit 255, a life consumption value transmission unit 256, and a storage unit. 257.

  The power storage information transmission unit 251 transmits to the ancillary service providing apparatus 100 an allowable lifetime consumption value indicating the lifetime consumption of the storage battery 260 that is allowed to provide the ancillary service. Specifically, the power storage information transmission unit 251 reads out the allowable lifetime consumption value stored in the storage unit 257 to be described later, and transmits it to the ancillary service providing apparatus 100.

  In addition, the power storage information transmission unit 251 further transmits to the ancillary service providing apparatus 100 an allowable period that is an allowable period for providing the ancillary service. Specifically, the power storage information transmission unit 251 reads the permissible period stored in the storage unit 257 to be described later, and transmits it to the ancillary service providing apparatus 100.

  The control signal acquisition unit 252 acquires a control signal for charging or discharging the storage battery 260 to provide the ancillary service from the ancillary service providing apparatus 100 that has received the allowable lifetime consumption value.

  The charge / discharge signal generation unit 253 generates a charge / discharge signal indicating the charge power value charged by the storage battery 260 or the discharge power value discharged according to the control signal acquired by the control signal acquisition unit 252.

  The charge / discharge signal transmission unit 254 causes the storage battery 260 to charge or discharge the charge / discharge signal in order to charge or discharge the discharge power value indicated by the charge / discharge signal generated by the charge / discharge signal generation unit 253 or the power of the charge power value. Send to.

  The lifetime consumption value calculation unit 255 calculates a lifetime consumption value indicating the lifetime consumed by the storage battery 260 that has been charged or discharged according to the charge / discharge signal. Specifically, the lifetime consumption value calculation unit 255 rewrites the lifetime consumption value by storing the calculated lifetime consumption value in the storage unit 257 described later.

  The lifetime consumption value transmission unit 256 transmits the lifetime consumption value calculated by the lifetime consumption value calculation unit 255 to the ancillary service providing apparatus 100. Specifically, the lifetime consumption value transmission unit 256 reads the lifetime consumption value stored in the storage unit 257 to be described later, and transmits it to the ancillary service providing apparatus 100.

  The storage unit 257 is a semiconductor memory or the like that stores a power storage data table 258 that is a data table used for controlling the storage battery 260 by the power storage control unit 250. The power storage data table 258 will be described later.

  In addition to the processing unit, the power storage control unit 250 may include a display unit such as a CRT (Cathode-Ray Tube) or an LCD (Liquid Crystal Display), or an input unit such as a touch panel.

  Next, the power storage data table 258 stored in the storage unit 257 and the power storage information table 161 stored in the storage unit 160 will be described in detail.

FIG. 3 is a diagram showing an example of the power storage data table 258 according to the first embodiment.
As shown in the figure, the power storage data table 258 is a data table including information on “allowable life consumption value”, “allowable period”, and “lifetime consumption value”.

  The “allowable lifetime consumption value” and “allowable period” are the allowable lifetime consumption value and the allowable period of the storage battery 260 of the consumer power storage device 210, and are values determined in advance by the user. The “allowable life consumption value” and the “allowable period” are values that can be changed as needed by the user.

  For example, when the power storage device 210 in a consumer is a storage battery for an electric vehicle and the electric vehicle runs on Saturday and Sunday, but is parked in a customer parking lot during a period from Monday to Friday, A consumer who owns an electric vehicle determines that the period from Monday to Friday is an allowable period. This is because the consumer power storage device 210 can provide an ancillary service by being connected to the power system 320 during the period from Monday to Friday.

  Further, the consumer who owns the electric vehicle determines an allowable lifetime consumption value within an allowable period from Monday to Friday. Here, the lifetime consumption value when the lifetime is exhausted is set to “1”, and the consumer determines that the lifetime consumption value allowable for the consumer power storage device 210 to provide the ancillary service is, for example, 0.01. To do.

  And the electrical storage data table 258 is updated because the said consumer memorize | stores the said permissible period and permissible lifetime consumption value in the memory | storage part 257. FIG. Further, the allowable life consumption value and the allowable period are read by the storage information transmitting unit 251 and transmitted to the ancillary service providing apparatus 100.

  The “lifetime consumption value” is a current value of the lifetime consumption value of the storage battery 260 of the power storage device 210 in the consumer, and is changed each time the lifetime consumption value of the storage battery 260 is changed. The lifetime consumption value calculation unit 255 updates the power storage data table 258 by calculating the lifetime consumption value and storing it in the storage unit 257. Further, the lifetime consumption value transmission unit 256 reads the lifetime consumption value included in the power storage data table 258 and transmits it to the ancillary service providing apparatus 100.

FIG. 4 is a diagram showing an example of the power storage information table 161 according to the first embodiment.
As shown in the figure, the power storage information table 161 is a data table including information on “allowable lifetime consumption value”, “allowable period”, and “lifetime consumption value”, similarly to the storage data table 258.

  Here, “allowable lifetime consumption value”, “allowable period”, and “lifetime consumption value” are the same as “allowable lifetime consumption value”, “allowable period”, and “lifetime consumption value” included in the power storage data table 258. Therefore, detailed description is omitted.

  The allowable life consumption value and the allowable period are acquired by the first acquisition unit 110 and stored in the storage unit 160 by the first acquisition unit 110, whereby the power storage information table 161 is updated. Further, the lifetime consumption value is acquired by the second acquisition unit 130 and stored in the storage unit 160 by the second acquisition unit 130, whereby the power storage information table 161 is updated.

  Then, the determination unit 140 reads the allowable lifetime consumption value, the allowable period value, and the current value of the lifetime consumption value of the power storage device 210 in the consumer from the storage information table 161 stored in the storage unit 160, and determines the lifetime consumption value. Is determined to exceed the allowable lifetime consumption value, or whether the charge / discharge period exceeds the allowable period.

  Next, processing performed by the ancillary service providing apparatus 100 and the consumer power storage apparatus 210 will be described.

  FIG. 5 is a flowchart showing an example of the operation of the ancillary service providing apparatus 100 according to the first embodiment.

  FIG. 6 is a flowchart showing an example of the operation of the consumer electricity storage device 210 according to the first embodiment.

  FIG. 7 is a diagram for explaining operations performed by the ancillary service providing apparatus 100 and the consumer power storage apparatus 210 according to the first embodiment.

First, as shown in FIG. 5, the first acquisition unit 110 of the ancillary service providing apparatus 100 acquires the allowable period T _MAX and the allowable lifetime consumption value Σf _MAX within the allowable period (S102). The allowable period is a period that can be permitted for the consumer power storage device 210 to provide ancillary service. Further, the allowable lifetime consumption value is a value indicating the lifetime consumption allowable for the consumer power storage device 210 to provide the ancillary service.

Here, as shown in FIG. 6, the power storage information transmitting unit 251 of each power storage device included in the consumer power storage device 210 calculates the allowable period T _MAX and the allowable lifetime consumption value Σf _MAX within the allowable period. It transmits to the ancillary service providing apparatus 100 (S202).

Specifically, the storage information transmission unit 251 reads the allowable period T _MAX and the allowable lifetime consumption value Σf _MAX included in the storage data table 258 from the storage unit 257 and transmits them to the ancillary service providing apparatus 100. Thereby, the first acquisition unit 110 receives the allowable period T _MAX and the allowable lifetime consumption value Σf _MAX transmitted by the power storage information transmission unit 251.

  For example, the first acquisition unit 110 acquires a period from Monday to Friday as the allowable period, and acquires 0.01 as the allowable lifetime consumption value. Then, the first acquisition unit 110 updates the power storage information table 161 by causing the storage unit 160 to store the acquired allowable period and allowable lifetime consumption value.

  Returning to FIG. 5, next, the determination unit 140 sets the charge / discharge period T = 0 as the initial value of the charge / discharge period T (S104). That is, the charge / discharge period is a period in which the consumer power storage device 210 performs charge / discharge according to the control signal transmitted by the control signal transmission unit 120. In the initial state, the consumer power storage device 210 is charged / discharged according to the control signal. Since no discharge is performed, the charge / discharge period T = 0.

  Next, the control signal transmission unit 120 transmits a control signal that causes the consumer power storage device 210 to charge or discharge in order to allow the consumer power storage device 210 to provide an ancillary service (S106).

  Specifically, the control signal transmission unit 120 performs charge / discharge necessary for load frequency control of the electric power system 320, provision of instantaneous reserve capacity, operation reserve capacity or standby reserve capacity, voltage maintenance, etc. The control signal for making 210 perform is produced | generated, and the said control signal is transmitted to the electrical storage apparatus 210 in a consumer. For example, the control signal is a ratio to the rated output of the consumer power storage device 210.

  Then, the consumer power storage device 210 receives the control signal and performs charging or discharging according to the control signal, thereby providing an ancillary service to the power system 320.

  That is, as shown in FIG. 6, the control signal acquisition unit 252 of the power storage device included in the consumer power storage device 210 acquires the control signal transmitted by the control signal transmission unit 120 (S204).

  Then, the charge / discharge signal generation unit 253 generates a charge / discharge signal indicating the charge power value charged by the storage battery 260 or the discharge power value discharged according to the control signal acquired by the control signal acquisition unit 252 (S206).

  For example, when the control signal is a ratio with respect to the rated output, the charge / discharge signal generation unit 253 calculates a charge / discharge power value by multiplying the rated output by the ratio, and generates a charge / discharge signal. Here, the charge / discharge signal may be a charge / discharge power value for charging / discharging the storage battery 260 or a current value for charging / discharging.

  Then, the charge / discharge signal transmission unit 254 transmits the charge / discharge signal generated by the charge / discharge signal generation unit 253 to the storage battery 260 (S208). Thereby, the storage battery 260 is charged / discharged with the discharge power value or the charge power value indicated by the charge / discharge signal.

  Next, the lifetime consumption value calculation unit 255 calculates the lifetime consumption value Σf (x) consumed by the storage battery 260 that has been charged or discharged in accordance with the charge / discharge signal (S210). That is, the lifetime consumption value calculation unit 255 first initializes Σf (x) = 0 and then calculates the lifetime consumption value Σf (x) by integrating the values of f (x).

For example, as shown in FIG. 7, when the consumer power storage device 210 performs charging from the SOC (State Of Charge) value from x ₁ to x ₂ , the lifetime consumption value calculation unit 255 sets the x ₁ The lifetime consumption value within the charge / discharge period T ₁ to ₂ consumed from 1 to x ₂ is calculated. In addition, when the power storage device 210 in the consumer performs charge / discharge of the SOC value from x ₁ to x ₈ , the lifetime consumption value calculation unit 255 uses the charge / discharge period T consumed from x ₁ to x _8. calculating the lifetime consumption values in the _1-8.

Note that the SOC is an index indicating the charging rate (remaining capacity) of the power storage device. Further, in the figure, the power storage device 210 in the consumer is charged during the periods in which the SOC values are x ₁ to x ₂ , x _{3 to} x ₄ , x _{5 to} x ₆ and x _{7 to} x ₈ , and x _{2 to} x _3. , X _{4 to} x ₅ and x _{6 to} x ₇ are discharged.

  Then, the lifetime consumption value calculation unit 255 updates the power storage data table 258 by storing the calculated lifetime consumption value in the storage unit 257. A more detailed description of the process in which the lifetime consumption value calculation unit 255 calculates the lifetime consumption value will be described later.

  Returning to FIG. 6, the lifetime consumption value transmitting unit 256 transmits the lifetime consumption value Σf (x) calculated by the lifetime consumption value calculating unit 255 to the ancillary service providing apparatus 100 (S212). That is, the lifetime consumption value transmission unit 256 reads the lifetime consumption value stored in the storage unit 257 and transmits it to the ancillary service providing apparatus 100.

  Returning to FIG. 5, the second acquisition unit 130 of the ancillary service providing apparatus 100 acquires the lifetime consumption value Σf (x) within the charge / discharge period from the lifetime consumption value transmission unit 256 (S108). And the 2nd acquisition part 130 updates the electrical storage information table 161 by making the memory | storage part 160 memorize | store the acquired lifetime consumption value.

Then, the determination unit 140 adds a to the charge / discharge period T (S110). Here, a is a cycle in which a control signal is transmitted to the consumer power storage device 210 and a lifetime consumption value is acquired, and is a value determined in advance by the user. Specifically, a is the period of the previous demand domestic power storage device 210 were charged and discharged, for example, charging and discharging the charge from x ₁ as shown in FIG. 7 to x ₂ is carried out for a period T ₁ ~ ₂ It is. The value of a is not particularly limited, but is a predetermined period such as a day order, hour order, minute order, or second order interval. Further, the value of a may be changed with the passage of time.

The determining unit 140 determines whether the lifetime consumption value .SIGMA.f (x) exceeds the allowable life consumption value Σf _MAX (S112).

Specifically, the determination unit 140 reads the allowable lifetime consumption value and the lifetime consumption value of the power storage device 210 in the consumer from the storage information table 161 stored in the storage unit 160, and the lifetime consumption value indicates the allowable lifetime consumption value. Judge whether or not it exceeds. For example, the determination unit 140 determines whether or not the lifetime consumption values from x ₁ to x ₂ shown in FIG. 7 exceed the allowable lifetime consumption value Σf _MAX .

If determining unit 140 determines that lifetime consumption value Σf (x) does not exceed allowable lifetime consumption value Σf _MAX (NO in S112), whether charging / discharging period T exceeds allowable period T _MAX or not. Is determined (S114).

Specifically, the determination unit 140 reads the current values of the allowable period and the charge / discharge period of the power storage device 210 in the consumer from the power storage information table 161 stored in the storage unit 160, and the charge / discharge period exceeds the allowable period. Judge whether or not. For example, the determination unit 140 determines whether the charge / discharge periods T such as the charge / discharge periods T ₁ to ₂ and the charge / discharge periods T ₁ to ₈ shown in FIG. 7 exceed the allowable period T _MAX .

When determining unit 140 determines that charging / discharging period T has not exceeded allowable period T _MAX (NO in S114), control signal transmitting unit 120 returns to the process of transmitting a control signal (S106) again.

  As described above, the control signal transmission unit 120 repeatedly stores power in the consumer until it is determined that the lifetime consumption value exceeds the allowable lifetime consumption value, or until it is determined that the charge / discharge period exceeds the allowable period. A control signal is transmitted to the device 210.

  In the consumer power storage device 210, the control signal acquisition unit 252 acquires the control signal (S204), and after the subsequent processing (S206 to S210) is performed, the lifetime consumption value transmission unit 256 determines the lifetime consumption value Σf ( x) is transmitted to the ancillary service providing apparatus 100 (S212). And in the ancillary service provision apparatus 100, the 2nd acquisition part 130 acquires lifetime consumption value (SIGMA) f (x) (S108), and subsequent processes (S110-) are performed repeatedly.

When determining unit 140 determines that life consumption value Σf (x) exceeds allowable life consumption value Σf _MAX (YES in S112), or when charge / discharge period T exceeds allowable period T _MAX. When the determination is made (YES in S114), the consideration calculation unit 150 uses the lifetime consumption value Σf (x) to calculate a consideration for providing the ancillary service by the consumer power storage device 210 (S116). A detailed description of the process in which the consideration calculation unit 150 calculates the consideration will be described later.

  As described above, the processing performed by the ancillary service providing apparatus 100 and the consumer power storage apparatus 210 ends.

  Next, a process (S210 in FIG. 6) in which the lifetime consumption value calculation unit 255 calculates the lifetime consumption value will be described.

  First, the lifetime consumption value calculation unit 255 acquires a unit lifetime consumption value indicating the lifetime consumed by the storage battery 260 every time the control signal acquisition unit 252 acquires a control signal from the ancillary service providing apparatus 100.

For example, as shown in FIG. 7, when charging from x ₁ to x ₂ is performed according to the control signal, the lifetime consumption value calculation unit 255 calculates the lifetime consumption value from x ₁ to x ₂ as the unit lifetime consumption. Obtained as the value f (x ₁ ). When discharge from x ₂ to x ₃ is performed according to the control signal, the lifetime consumption value calculation unit 255 acquires the lifetime consumption value from x ₂ to x ₃ as the unit lifetime consumption value f (x ₂ ). To do.

  Here, the unit life consumption value f (x) acquired by the life consumption value calculation unit 255 will be described in more detail.

  FIG. 8 is a diagram for explaining the unit life consumption value f (x) acquired by the life consumption value calculation unit 255 according to the first embodiment. Specifically, (a) of the figure is a graph showing the relationship between the discharge depth, the charge depth, and the cycle life. Moreover, (b) of the figure is a table | surface which shows the relationship between discharge depth, charge depth, and cycle life.

  As shown to (a) of the figure, when the discharge depth or the charge depth changes, the cycle life also changes. Here, a plurality of straight lines in the graph shown in the figure indicate characteristics at different charging depths in the same power storage device. In addition, the power storage device is discharged to the depth of discharge and charged to the depth of charge, and the cycle life is the number of times the power storage device can be charged and discharged in this case. That is, the lifetime of the power storage device can be determined from the depth of discharge and the depth of charge.

  For example, since the cycle life when the depth of discharge is 100% and the depth of charge is 100% is 300 cycles, by performing charging / discharging once when the depth of discharge is 100% and the depth of charge is 100%, That will consume 1/300 of the lifetime. Similarly, since the cycle life when the depth of discharge is 50% and the depth of charge is 100% is 400 cycles, charging / discharging with the depth of discharge of 50% and the depth of charge of 100% is performed once. , Consumes 1/400 life. Here, the lifetime consumption value when the lifetime is exhausted is 1.

  Thus, the reciprocal of the cycle life corresponding to the depth of discharge and the charge depth obtained from the life characteristics of the power storage device is the life consumed by one charge / discharge. In this way, as shown in (b) of the figure, a table in which the life corresponding to the discharge depth and the charge depth is described can be created. Note that the depth of charge and the depth of discharge are determined by the user so that, for example, the lifetime of the power storage device is increased and the value obtained by providing the ancillary service of the power storage device is increased.

The unit life consumption value f (x) can be calculated using the life. For example, the unit life consumption value f (x ₁ ) when charging from x ₁ to x ₂ is performed is one charge / discharge obtained from the discharge depth and the charge depth corresponding to x ₁ and x _2. The value is half of the lifespan.

  Here, a mathematical expression representing the graph shown in FIG. 5A or a table shown in FIG. 5B is stored in the storage unit 257.

  Therefore, the life consumption value calculation unit 255 refers to the mathematical expression or table regarding the life characteristics of the storage battery 260 of the consumer power storage device 210 stored in the storage unit 257, and corresponds to the discharge depth and the charge depth. A unit life consumption value f (x) calculated using the life obtained from the cycle life is acquired.

And the lifetime consumption value calculation part 255 calculates the lifetime consumption value (SIGMA) f (x) in a charging / discharging period by integrating | accumulating the unit lifetime consumption value f (x) acquired in the charging / discharging period. For example, as shown in FIG. 7, when charging from x ₁ to x ₈ is performed according to the control signal, the lifetime consumption value calculation unit 255 acquires the unit lifetime consumption value acquired within the charge / discharge periods T ₁ to T ₈ . The lifetime consumption value Σf (x _i ) (i = 1 to 7) is calculated by adding f (x ₁ ) to f (x ₇ ).

  The lifetime consumption value calculated within the charge / discharge period calculated by the lifetime consumption value calculation unit 255 is transmitted to the ancillary service providing apparatus 100 by the lifetime consumption value transmission unit 256.

  Next, a process (S116 in FIG. 5) in which the consideration calculation unit 150 calculates a consideration for providing the ancillary service will be described.

The consideration calculation unit 150 uses the lifetime consumption value Σf (x) to calculate a consideration for the consumer power storage device 210 to provide an ancillary service. Specifically, the consideration calculation unit 150 calculates the consideration F by F = F ₁ using F ₁ calculated by the following Equation 1.

That is, the consideration calculation unit 150 calculates the consideration F = F ₁ by multiplying the lifetime consumption value Σf (x _i ) (i = 1 to n−1) by the weighting coefficient V. Here, the weight coefficient V is the amount of consideration per unit life consumed by the consumer power storage device 210 providing an ancillary service. Specifically, the weighting factor V is a different value for each power storage device, for example, a value proportional to the rated output of the power storage device. That is, the weighting factor V is a value indicating the value of the ancillary service, and the consideration calculating unit 150 can obtain the value of the weighting factor V from the conventional EMS 400, for example.

  Thus, the more the consumer power storage device 210 consumes the lifetime, the more the consumer who owns the consumer power storage device 210 can obtain the consideration F.

The consideration calculating unit 150 may calculate the consideration F by F = F ₁ + F ₂ −F ₃ using F ₂ calculated by the following expression 2 and the discount amount F _3. .

Here, t1 to t2 are charging / discharging periods, and g (t) is a weighting function indicating the amount of consideration per unit output at a predetermined time t within the charging / discharging periods t1 to t2. In addition, w (t) is a value determined by the consumer as an output (hereinafter referred to as a standby output) that causes the consumer power storage device 210 to wait to provide ancillary service at the predetermined time t. In other words, the weight function g (t) and the discount amount F ₃ are values indicating the value of the ancillary service, and the value calculation unit 150, for example, from the conventional EMS 400, the value of the weight function g (t) and the discount amount F ₃ Can be obtained.

In this way, the consideration calculation unit 150 adds a value F ₁ obtained by multiplying the lifetime consumption value Σf (x _i ) (i = 1 to n−1) by the weighting coefficient V to a predetermined time within the charge / discharge periods t1 to t2. A value F ₂ obtained by multiplying a value obtained by multiplying the standby output w (t) of the consumer power storage device 210 at time t by the weighting function g (t) within the charge / discharge periods t1 to t2 is added, and a predetermined value F ₃ is obtained. The consideration F is calculated by subtracting.

  As a result, even if the consumer power storage device 210 does not consume the lifetime, if the standby time occurs within the charge / discharge period, the consumer who owns the consumer power storage device 210 Consideration according to the standby output of the device 210 can be obtained. This is because the customer provides an ancillary service that ensures reserve capacity for the standby output during the charge / discharge period.

  As described above, according to the ancillary service providing apparatus 100 according to the first embodiment, the lifetime consumption value of the power storage device that is charged or discharged according to the control signal for providing the ancillary service is the allowable lifetime consumption. The control signal is repeatedly transmitted to the power storage device until the value is exceeded. In other words, the ancillary service is provided to the power storage device until the life allowed by the power storage device. Accordingly, the consumer can provide the ancillary service with the remaining capacity of the power storage device within an allowable range that does not adversely affect the life while considering the life of the power storage device. Therefore, when the power storage device is used for providing an ancillary service, the ancillary service can be provided while considering the life of the power storage device.

  Further, until it is determined that the life consumption value of the power storage device exceeds the allowable life consumption value or until it is determined that the charge / discharge period of the power storage device exceeds the allowable period, a control signal is repeatedly sent to the power storage device. Send. That is, the power storage device is provided with an ancillary service until the power storage device has an allowable life or an allowable charge / discharge period. Thereby, the consumer can provide the remaining capacity of the power storage device to the ancillary service within a charge / discharge period that does not impair the convenience of the original use of the power storage device while considering the life of the power storage device. Therefore, when the power storage device is used for providing an ancillary service, the ancillary service can be provided while considering the charge / discharge period in addition to the life of the power storage device.

  In addition, using the lifetime consumption value, the price for the power storage device to provide the ancillary service is calculated. In other words, the life of the power storage device is consumed by providing the ancillary service by the power storage device, but the compensation according to the life consumption value of the power storage device provided by the ancillary service is calculated. Here, it is very important to consider the lifetime when calculating the compensation for the storage device to provide the ancillary service, but in the conventional method, the ancillary consideration is calculated from the viewpoint of the lifetime. It wasn't something to do. For this reason, the consumer who owns the said electrical storage apparatus can obtain the price commensurate with the lifetime consumption value of the electrical storage apparatus by provision of the said ancillary service.

  Also, the consideration is calculated by multiplying the lifetime consumption value by a weighting factor. In other words, the larger value is calculated as the lifetime consumption value of the power storage device is larger. For this reason, the consumer who owns the said electrical storage apparatus can obtain much consideration, so that the lifetime consumption value of the electrical storage apparatus by provision of the said ancillary service is large.

  In addition, a value obtained by multiplying a value obtained by multiplying the lifetime consumption value by a weighting factor by a weight function to an output that the power storage device waits for providing an ancillary service at a predetermined time within the charge / discharge period is set within the charge / discharge period. The consideration may be calculated by adding the integrated values and subtracting a predetermined value. That is, the total of (1) consideration according to the lifetime consumption value of the power storage device, (2) consideration for providing the ancillary service within the charge / discharge period, and (3) discounting of the consideration is calculated as the consideration. Here, in (2) above, within the charge / discharge period, the output power provides ancillary service even if the power storage device has not consumed its life (even if it is waiting). Therefore, the compensation according to the output of the power storage device is calculated. For this reason, the consumer who owns the said electrical storage apparatus can obtain the consideration according to the said output in a charging / discharging period in addition to the consideration according to the lifetime consumption value of an electrical storage apparatus.

  In addition, according to the in-customer power storage device 210 according to the first embodiment, the allowable lifetime consumption value allowed for providing the ancillary service is transmitted to the ancillary service providing device 100, and the ancillary service providing device The lifetime consumption value of the storage battery 260 that has been charged or discharged according to the control signal from 100 is calculated and transmitted to the ancillary service providing apparatus 100. That is, the consumer power storage device 210 calculates the lifetime consumption value, and transmits the allowable lifetime consumption value and the lifetime consumption value to the ancillary service providing device 100, so that the ancillary service providing device 100 receives the allowable lifetime consumption. The ancillary service can be provided to the consumer power storage device 210 until the life allowed by the consumer power storage device 210 is reached using the value and the lifetime consumption value. Accordingly, the consumer can provide the ancillary service with the remaining capacity of the power storage device within an allowable range that does not adversely affect the life while considering the life of the power storage device. Therefore, when the power storage device is used for providing an ancillary service, the ancillary service can be provided while considering the life of the power storage device.

  Further, every time a control signal is acquired from the ancillary service providing apparatus 100, a unit life consumption value is acquired, and the unit life consumption value acquired within the charge / discharge period is integrated to thereby calculate the life consumption value within the charge / discharge period. Is calculated and transmitted to the ancillary service providing apparatus 100. Thereby, since the ancillary service providing apparatus 100 can grasp the lifetime consumption value of the power storage device within the charge / discharge period as needed, it can provide the ancillary service while considering the lifetime of the power storage device.

  In addition, the unit life consumption value is obtained from the cycle life corresponding to the discharge depth and the charge depth, and the unit life consumption value acquired within the charge / discharge period is integrated to calculate the life consumption value within the charge / discharge period. To do. For this reason, the lifetime consumption value can be easily calculated by grasping the lifetime characteristics of the storage battery in advance.

(Modification 1 of Embodiment 1)
Next, Modification 1 of Embodiment 1 will be described. In the first embodiment, the lifetime consumption value calculation unit 255 of the consumer power storage device 210 acquires the unit lifetime consumption value from the cycle lifetime corresponding to the depth of discharge and the depth of charge obtained from the lifetime characteristics of the storage battery 260. The lifetime consumption value within the charge / discharge period was calculated. However, in the first modification of the first embodiment, the lifetime consumption value calculation unit 255 uses the total value of the charge / discharge power amount within the charge / discharge period of the storage battery 260 to determine the lifetime consumption value within the charge / discharge period. Is calculated.

  Specifically, the lifetime consumption value calculation unit 255 in the first modification of the storage battery 260 within a charge / discharge period in which the storage battery 260 is charged or discharged according to a control signal from the ancillary service providing apparatus 100. The lifetime consumption value within the charge / discharge period is calculated using the total value of the charge / discharge energy.

FIG. 9 is a diagram for explaining a lifetime consumption value acquired by the second acquisition unit 130 according to the first modification of the first embodiment. Specifically, the figure is a graph showing the relationship between x _i and x _{i + 1} indicating the SOC at two times and the unit life consumption value f (x _i ) between the two times. .

First, the unit life consumption value f (x _i ) can be expressed by the following Equation 3. Here, A is a value indicating the rated capacity of the consumer power storage device 210, and u is a life conversion coefficient indicating the life per charge / discharge power amount of the consumer power storage device 210.

That is, since x _i and x _{i + 1} are values indicating SOC at two times, A × | x _{i + 1} −x _i | is the value of the power storage device 210 in the consumer between the two times. The charge / discharge energy (absolute value) is shown. Therefore, the unit life consumption value f (x _i ) is a value obtained by multiplying the life conversion coefficient u of the consumer power storage device 210 between the two times by the charge / discharge power amount.

The figure shows the relationship between x _i and x _{i + 1} and the unit life consumption value f (x _i ). Here, it is assumed that the value of the life conversion coefficient u of the consumer power storage device 210 is predetermined by the user. Since x _i is a SOC value, it takes a value from 0 (during discharge) to 1 (during full charge). However, in the same figure, x _i and x _{i + 1} are expressed as percentages. 0 to 100 (%).

The lifetime consumption value Σf (x _i ) (i = 1 to n−1) within the charge / discharge period is expressed by the unit lifetime consumption value f shown in Formula 3 during the charge / discharge period as shown in Formula 4 below. Calculated by integrating (x _i ). In Equation 4, the charge / discharge period is a period corresponding to i = 1 to n−1, and the SOC takes values x ₁ to x _n within the period.

That is, the lifetime consumption value calculation unit 255 is a total value {ΣA × | x _{i + 1} −x _i | (i = 1 to n−1) of charge / discharge electric energy in the charge / discharge period of the power storage device 210 in the consumer. } Is multiplied by a lifetime conversion coefficient u to calculate a lifetime consumption value Σf (x _i ) (i = 1 to n−1) within the charge / discharge period and obtain the lifetime consumption value.

  Note that the life conversion coefficient u of the power storage device 210 in the consumer is stored in the storage unit 257, and the life consumption value calculation unit 255 reads out the life conversion coefficient u from the storage unit 257 so that it is within the charge / discharge period. Calculate the lifetime consumption value.

  As described above, according to the consumer power storage device 210 according to the first modification of the first embodiment, the total value of the charge / discharge power amount of the storage battery 260 within the charge / discharge period is used within the charge / discharge period. Calculate the lifetime consumption value. For this reason, a lifetime consumption value is easily computable using the total value of the charging / discharging electric energy in the said charging / discharging period.

(Modification 2 of Embodiment 1)
Next, a second modification of the first embodiment will be described. In the first embodiment, the power storage information transmission unit 251 of the power storage device 210 in the consumer obtains the allowable period T _MAX determined by the consumer from the storage unit 257 and transmits it to the ancillary service providing device 100. It was decided. However, in the second modification of the first embodiment, the power storage information transmitting unit 251 acquires the allowable period T _MAX that does not impair the convenience of the original use of the power storage device, and sends it to the ancillary service providing device 100. Send.

  Specifically, when it is predicted that the storage battery 260 is not charged up to a predetermined charge amount within a predetermined period by charging according to the control signal from the ancillary service providing apparatus 100, the power storage information transmitting unit 251 In order to charge the storage battery 260 to a predetermined charge amount within a predetermined period, a period in which charging according to the control signal is permitted is acquired as an allowable period. Then, the storage information transmitting unit 251 transmits the allowable period and the allowable lifetime consumption value within the allowable period to the ancillary service providing apparatus 100.

  FIG. 10 is a diagram illustrating a process in which the power storage information transmission unit 251 according to the second modification of the first embodiment acquires an allowable period. Specifically, (a) of the figure is a graph showing the SOC value with respect to the elapsed time when the power storage device is normally charged. Moreover, (b) of the same figure is the graph which showed the value of SOC with respect to elapsed time at the time of charging an electrical storage apparatus with the ancillary service provision apparatus 100. FIG.

  As shown to (a) of the figure, in normal charge, in the period T1 to time t1, the consumer electrical storage device 210 up to a predetermined charge amount (charge amount when SOC shown in the figure is x%). Is charged. The consumer power storage device 210 may be charged by time t2, but since charging is completed at time t1, the consumer power storage device 210 is not charged during the period T2 from time t1 to time t2. I will not.

  On the other hand, as shown in (b) of the figure, the ancillary service providing apparatus 100 charges the power storage apparatus 210 in the consumer according to the control signal transmitted by the control signal transmitting unit 120 during the period T3 until time t3. To do. Here, it is assumed that the power storage device 210 in the consumer needs to be charged to a predetermined charge amount indicated by SOC of x% by time t2. And in the charge according to the said control signal, suppose that the electrical storage apparatus 210 in a consumer is not charged to the said predetermined charge amount by the time t2.

For this reason, the power storage information transmission unit 251 predicts that the power storage device 210 in the consumer will not be charged to a predetermined charge amount by time t2 in charging according to the control signal, and the power storage device 210 in the consumer is predetermined by time t2. A period in which charging according to the control signal is allowed to charge up to the charged amount is acquired as an allowable period. That is, the storage information transmitting unit 251 acquires T _MAX shown in FIG.

Specifically, the power storage information transmission unit 251 acquires the fastest charging straight line (straight line P shown in the figure) for charging the consumer power storage device 210 to a predetermined charge amount by time t2, thereby allowing the allowable period. Get T _MAX . That is, the power storage information transmission unit 251 acquires, as the allowable period T _MAX , a period until the fastest charging straight line P intersects with a curve when charging according to the control signal is performed.

Incidentally, demand cottage power storage device 210, after being charged to an acceptable period T _MAX, charge along the fastest charge straight line P until the time t2 is performed. Here, the fastest charging straight line P is a straight line having the same inclination as the charging straight line in the period T1 in FIG. That is, the consumer power storage device 210 performs normal charging without being controlled by the ancillary service providing device 100 during a period T4 from time t3 to time t2.

  As described above, according to the in-customer power storage device 210 according to the second modification of the first embodiment, in the charging according to the control signal from the ancillary service providing device 100, the storage battery is charged within a predetermined period. When it is predicted that the battery will not be charged up to a predetermined amount, a period in which charging according to the control signal is allowed to charge the storage battery 260 to a predetermined amount of charge within a predetermined period is acquired as an allowable period. The allowable lifetime consumption value within the allowable period is transmitted to the ancillary service providing apparatus 100. For example, when the power storage device is a storage battery of an electric vehicle, charging according to the control signal may not be completed at the time when the user wants to use the electric vehicle. In this case, the charging of the storage battery of the electric vehicle is stopped according to the control signal, and the allowable period is determined and charged so that the charging is completed at the time that the user wants to use. As a result, a power storage device such as a storage battery of an electric vehicle can be charged up to a predetermined charge amount within a predetermined period, so that the remaining capacity of the power storage device can be reduced without impairing the convenience of the original use of the power storage device. Can be provided to the service.

Note that power storage information transmission unit 251 does not acquire the allowable period T _MAX, to obtain the fastest charge straight line P, by sending the fastest charge straight line P in ancillary service providing apparatus 100, ancillary The service providing apparatus 100 may calculate the allowable period _TMAX .

(Modification 3 of Embodiment 1)
Next, a third modification of the first embodiment will be described. In the second modification of the first embodiment, the power storage information transmission unit 251 acquires the allowable period T _MAX by acquiring the fastest charging straight line P and transmits it to the ancillary service providing apparatus 100. However, in the third modification of the first embodiment, the power storage information transmitting unit 251 updates the allowable period T _MAX by acquiring the SOC value of the power storage device and transmits it to the ancillary service providing device 100.

  FIG. 11 is a flowchart showing an example of the operation of the ancillary service providing apparatus 100 according to the third modification of the first embodiment.

  FIG. 12 is a flowchart illustrating an example of the operation of the in-customer power storage device 210 according to the third modification of the first embodiment.

As shown in these drawings, first, the power storage information transmitting unit 251 of each power storage device included in the consumer power storage device 210 transmits the allowable life consumption value Σf _MAX to the ancillary service providing device 100 (S203), The first acquisition unit 110 of the ancillary service providing apparatus 100 acquires the allowable lifetime consumption value Σf _MAX (S103). Since these processes are the same as the processes described in FIGS. 6 and 5 (S202 in FIG. 6 and S102 in FIG. 5), detailed description thereof is omitted.

  Then, the determination unit 140 of the ancillary service providing apparatus 100 sets the charge / discharge period T = 0 as the initial value of the charge / discharge period T (S104), and the control signal transmission unit 120 sends a control signal to the in-consumer power storage device 210. Transmit (S106). Since these processes are the same as the processes described in FIG. 5 (S104 and S106 in FIG. 5), detailed description thereof is omitted.

  Next, the control signal acquisition unit 252 of the power storage device included in the consumer power storage device 210 acquires the control signal (S204), the charge / discharge signal generation unit 253 generates the charge / discharge signal (S206), and transmits the charge / discharge signal. The unit 254 transmits the charge / discharge signal to the storage battery 260 (S208), and the lifetime consumption value calculation unit 255 calculates the lifetime consumption value Σf (x) (S210). Since these processes are the same as the processes described in FIG. 6 (S204 to S210 in FIG. 6), detailed description thereof is omitted.

Then, the power storage information transmitting unit 251 updates the allowable period T _MAX (S211). That is, when it is predicted that the storage battery 260 is not charged up to a predetermined charge amount within a predetermined period by charging according to the control signal from the ancillary service providing apparatus 100, the storage information transmission unit 251 A period in which charging according to the control signal is allowed in order to charge the battery up to a predetermined charge amount within a predetermined period is acquired and updated as an allowable period.

Specifically, the power storage information transmission unit 251 calculates the allowable period T _MAX and stores it in the storage unit 257, for example, by acquiring the SOC value as shown in FIG. The data table 258 is updated.

Then, the storage information transmitting unit 251 transmits the updated allowable period T _MAX to the ancillary service providing apparatus 100, and the lifetime consumption value transmitting unit 256 transmits the lifetime consumption value Σf (x) to the ancillary service providing apparatus 100. Transmit (S213). Note that the process in which the lifetime consumption value transmission unit 256 transmits the lifetime consumption value Σf (x) to the ancillary service providing apparatus 100 is the same as the process described in FIG. 6 (S212 in FIG. 6), and thus detailed description will be given. Is omitted.

  Next, the second acquisition unit 130 of the ancillary service providing apparatus 100 acquires a lifetime consumption value Σf (x) (S108). Since this process is the same as the process described in FIG. 5 (S108 in FIG. 5), detailed description thereof is omitted.

In addition, the first acquisition unit 110 acquires the allowable period T _MAX transmitted by the power storage information transmission unit 251 (S109). And the 1st acquisition part 110 updates the electrical storage information table 161 by making the memory | storage part 160 memorize _| store the acquired allowable period TMAX.

The determining unit 140, the charging and discharging period T by adding a (S110), it is determined whether or not the life consumption value .SIGMA.f (x) exceeds the allowable life consumption value .SIGMA.f _MAX (S112), the life consumption value If .SIGMA.f (x) is determined not to exceed the allowable life consumption value .SIGMA.f _MAX (nO in S112), the charge and discharge period T determines whether exceeds the allowable period T _MAX (S114).

When determining unit 140 determines that charging / discharging period T has not exceeded allowable period T _MAX (NO in S114), control signal transmitting unit 120 returns to the process of transmitting a control signal (S106) again.

  As described above, the control signal transmission unit 120 repeatedly stores power in the consumer until it is determined that the lifetime consumption value exceeds the allowable lifetime consumption value, or until it is determined that the charge / discharge period exceeds the allowable period. A control signal is transmitted to the device 210.

In the consumer power storage device 210, the control signal acquisition unit 252 acquires the control signal (S204), and after the subsequent processing (S206 to S211) is performed, the storage information transmission unit 251 sets the allowable period T _MAX to an In addition to transmitting to the rally service providing apparatus 100, the lifetime consumption value transmitting unit 256 transmits the lifetime consumption value Σf (x) to the ancillary service providing apparatus 100 (S213).

Then, the ancillary service providing apparatus 100, the second acquisition unit 130 acquires the lifetime consumption value Σf (x) (S108), the first acquisition unit 110 acquires the allowable period T _MAX (S109), after The process (S110) is repeatedly performed.

When determining unit 140 determines that life consumption value Σf (x) exceeds allowable life consumption value Σf _MAX (YES in S112), or when charge / discharge period T exceeds allowable period T _MAX. When the determination is made (YES in S114), the consideration calculation unit 150 uses the lifetime consumption value Σf (x) to calculate a consideration for providing the ancillary service by the consumer power storage device 210 (S116). Since this process is the same as the process described in FIG. 5 (S116 in FIG. 5), detailed description thereof is omitted.

  As described above, the processing performed by the ancillary service providing apparatus 100 and the in-customer power storage apparatus 210 according to the third modification of the first embodiment ends.

  According to the consumer power storage device 210 according to the third modification of the first embodiment, the same effects as those of the second modification of the first embodiment are obtained.

(Embodiment 2)
Next, a second embodiment of the present invention will be described. In the first embodiment, the consumer power storage device 210 calculates the lifetime consumption value and transmits it to the ancillary service providing device 100. However, in the second embodiment, the ancillary service providing apparatus 100 calculates the lifetime consumption value.

  Here, the configuration of the ancillary service providing system 10 in the second embodiment is the same as the configuration of the ancillary service providing system 10 in the first embodiment shown in FIGS. Some of the functions of the constituent elements of the system 10 are different. For this reason, below, about the function which the said component has, the description different from the description in Embodiment 1 is demonstrated.

  The second acquisition unit 130 acquires a unit lifetime consumption value indicating the lifetime consumed by the consumer power storage device 210 every time the control signal transmission unit 120 transmits a control signal, and acquires the unit lifetime consumption value acquired during the charge / discharge period. The lifetime consumption value within the charge / discharge period is obtained by calculating a value obtained by integrating the values as the lifetime consumption value.

  FIG. 13 is a flowchart illustrating an example of a process in which the second acquisition unit 130 according to the second embodiment acquires a lifetime consumption value.

  As shown in the figure, first, the second acquisition unit 130 acquires a unit lifetime consumption value f (x) indicating the lifetime consumed by the consumer power storage device 210 every time the control signal transmission unit 120 transmits a control signal. (S302).

  Specifically, the second acquisition unit 130 refers to a mathematical expression or a table regarding the life characteristics of the consumer power storage device 210 stored in the storage unit 160, and determines the cycle life corresponding to the discharge depth and the charge depth. A unit life consumption value f (x) calculated using the obtained life is obtained.

  Here, the method in which the second acquisition unit 130 acquires the unit life consumption value f (x) is the same as the method in which the life consumption value calculation unit 255 in Embodiment 1 acquires the unit life consumption value f (x). Therefore, detailed description is omitted.

  Then, the second acquisition unit 130 integrates the unit life consumption value f (x) acquired during the charge / discharge period (S304).

  Then, the second acquisition unit 130 acquires a value obtained by integrating the unit life consumption values f (x) as a life consumption value Σf (x) within the charge / discharge period (S306).

As described above, the process in which the second acquisition unit 130 acquires the lifetime consumption value ends.
As described above, according to the ancillary service providing apparatus 100 according to the second embodiment, the lifetime consumption value obtained by integrating the unit lifetime consumption value consumed by the power storage device within the charge / discharge period every time the control signal is transmitted. By calculating, the lifetime consumption value within the charge / discharge period is acquired. Thereby, since the lifetime consumption value of the power storage device within the charge / discharge period can be grasped at any time, an ancillary service can be provided while considering the life of the power storage device.

  Also, from the life characteristics of the power storage device, obtain the unit life consumption value from the cycle life corresponding to the discharge depth and the charge depth, and calculate the life consumption value by integrating the unit life consumption value within the charge / discharge period. To do. For this reason, the lifetime consumption value can be easily calculated by grasping the lifetime characteristics of the power storage device in advance.

(Modification 1 of Embodiment 2)
Next, Modification 1 of Embodiment 2 will be described. In the second embodiment, the second acquisition unit 130 acquires the unit life consumption value from the cycle life corresponding to the depth of discharge and the depth of charge obtained from the life characteristics of the power storage device, so that it is within the charge / discharge period. It was decided to obtain the lifetime consumption value. However, in the first modification of the second embodiment, the second acquisition unit 130 uses the total charge / discharge power amount in the charge / discharge period of the power storage device to calculate the lifetime consumption value in the charge / discharge period. get.

  Specifically, the second acquisition unit 130 in the first modification of the second embodiment calculates the lifetime consumption value using the total value of the charge / discharge power amount within the charge / discharge period of the consumer power storage device 210. Thus, the lifetime consumption value within the charge / discharge period is acquired.

  Here, the second acquisition unit 130 according to the first modification of the second embodiment calculates the life consumption value by the life consumption value calculation unit 255 according to the first modification of the first embodiment. Since it is the same as the method, detailed description is abbreviate | omitted.

  That is, the second acquisition unit 130 can calculate the lifetime consumption value from the above Equation 3 and Equation 4. In addition, the life conversion coefficient u of the power storage device 210 in the consumer is stored in the storage unit 160, and the second acquisition unit 130 reads out the life conversion coefficient u from the storage unit 160, so that it is within the charge / discharge period. The lifetime consumption value is calculated, and the lifetime consumption value is acquired.

  As described above, according to the ancillary service providing apparatus 100 according to the first modification of the second embodiment, the lifetime consumption value is calculated using the total value of the charge / discharge power amount within the charge / discharge period of the power storage device. By doing so, the lifetime consumption value within the charge / discharge period is acquired. For this reason, a lifetime consumption value can be easily calculated using the total value of the charge / discharge electric energy within the charge / discharge period of the power storage device.

(Modification 2 of Embodiment 2)
Next, a second modification of the second embodiment will be described. In the second embodiment, the first obtaining unit 110 obtains the allowable period T _MAX determined by the consumer from the consumer power storage device 210. However, in the second modification of the present embodiment, the first acquisition unit 110 calculates and acquires the allowable period T _MAX that does not impair the convenience of the original use of the power storage device.

  Specifically, the first acquisition unit 110 sets the fastest charging straight line P when it is predicted that the power storage device 210 in the consumer will not be charged up to a predetermined charge amount within a predetermined period by charging according to the control signal. By acquiring, the period in which charging according to the control signal is allowed in order to charge the consumer power storage device 210 to a predetermined charge amount within a predetermined period is acquired as an allowable period.

Here, a technique of first acquiring unit 110 acquires the allowable period T _MAX in the modification 2 of the embodiment 2, acquires the power storage information transmission unit 251 the allowable period T _MAX in the second modification of the first embodiment Since it is the same as the technique to do, detailed description is abbreviate | omitted.

As shown in FIG. 10, after the consumer power storage device 210 is charged until the allowable period T _MAX , the control signal transmission unit 120 follows the fastest charging straight line P until the time t2 in the consumer power storage device 210. A control signal is sent to cause the battery to be charged.

  As described above, according to the ancillary service providing apparatus 100 according to the second modification of the second embodiment, the power storage device may not be charged up to a predetermined charge amount within a predetermined period by charging according to the control signal. When predicted, a period in which charging according to the control signal is allowed to charge the power storage device to a predetermined charge amount within a predetermined period is acquired as an allowable period. For example, when the power storage device is a storage battery of an electric vehicle, charging according to the control signal may not be completed at the time when the user wants to use the electric vehicle. In this case, the charging of the storage battery of the electric vehicle is stopped according to the control signal, and the allowable period is determined and charged so that the charging is completed at the time that the user wants to use. As a result, a power storage device such as a storage battery of an electric vehicle can be charged up to a predetermined charge amount within a predetermined period, so that the remaining capacity of the power storage device can be reduced without impairing the convenience of the original use of the power storage device. Can be provided to the service.

(Modification 3 of Embodiment 2)
Next, a third modification of the second embodiment will be described. In the second modification of the second embodiment, the first acquisition unit 110 calculates and acquires the allowable period T _MAX by acquiring the fastest charging straight line P. However, in the third modification of the second embodiment, the first acquisition unit 110 acquires the allowable period _TMAX by acquiring the SOC value of the consumer power storage device 210.

  Specifically, the first acquisition unit 110 determines that the consumer power storage device 210 is not charged up to a predetermined charge amount within a predetermined period by charging according to the control signal. By acquiring the SOC value, a period in which charging according to the control signal is allowed in order to charge the consumer power storage device 210 to a predetermined charge amount within a predetermined period is acquired as an allowable period.

Here, a technique of first acquiring unit 110 acquires the allowable period T _MAX in the modification 3 of the second embodiment of the invention, obtains a power storage information transmission unit 251 the allowable period T _MAX in the third modification of the first embodiment Since it is the same as the technique to do, detailed description is abbreviate | omitted.

  As described above, the ancillary service providing apparatus 100 according to the third modification of the second embodiment has the same effects as those of the second modification of the second embodiment.

  As described above, the ancillary service providing apparatus 100 and the consumer power storage apparatus 210 according to the present invention have been described using the above-described embodiment and the modifications thereof, but the present invention is not limited thereto.

  In other words, it should be considered that the embodiment and its modification disclosed this time are illustrative and not restrictive in all respects. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. Moreover, you may combine each component in the said several embodiment arbitrarily in the range which does not deviate from the meaning of invention.

  For example, in the present embodiment and its modification, the device to which the control signal is transmitted is the consumer power storage device 210 such as a secondary battery or an electric vehicle. However, the device to which the control signal is transmitted may be a load device that consumes power. That is, the ancillary service can be provided when the load device consumes power according to the control signal. In addition, the said load apparatus is heat storage apparatuses, such as air conditioning apparatus, such as a heat pump, and an ice thermal storage apparatus.

  The present invention can be realized not only as an ancillary service providing device or an electricity storage device using such an electricity storage device but also as an ancillary device using an electricity storage device including the ancillary service providing device and the electricity storage device. It can also be realized as a rally service providing system. Moreover, it can also be realized as an ancillary service providing method or a power storage method using a power storage device that uses a process performed by each processing unit included in the ancillary service providing device or the power storage device using such a power storage device. In addition, the ancillary service providing method using the power storage device or a characteristic process included in the power storage method can be realized as a program for causing a computer to execute. Needless to say, such a program can be distributed via a recording medium such as a CD-ROM and a transmission medium such as the Internet. In addition, it can be realized as an ancillary service providing device using a power storage device or an integrated circuit including a characteristic processing unit included in the power storage device.

  The present invention can be applied to an ancillary service providing apparatus for controlling supply and demand of an electric power system using a power storage device, and in particular, an ancillary service providing that can provide an ancillary service while considering the life of the power storage device Applicable to devices and the like.

DESCRIPTION OF SYMBOLS 10 Ancillary service provision system 100 Ancillary service provision apparatus 110 1st acquisition part 120 Control signal transmission part 130 2nd acquisition part 140 Judgment part 150 Consideration calculation part 160 Storage part 161 Electrical storage information table 200 Electrical storage apparatus 201a-201g Secondary battery 202a to 202e Electric vehicle storage battery 210 Consumer power storage device 250 Power storage control unit 251 Power storage information transmission unit 252 Control signal acquisition unit 253 Charge / discharge signal generation unit 254 Charge / discharge signal transmission unit 255 Life consumption consumption value calculation unit 256 Life consumption consumption value transmission unit 257 Storage unit 258 Power storage data table 260 Storage battery 310 Communication network 320 Power system 321 Office building 322, 323 General home 324 Factory 400 Conventional EMS

Claims (17)

An ancillary service providing device for providing an ancillary service for performing supply and demand control of a power system to which the power storage device is connected, using a power storage device that repeats charging and discharging,
A first acquisition unit for acquiring an allowable lifetime consumption value indicating a lifetime consumption of the power storage device allowed to provide an ancillary service;
A control signal transmission unit for transmitting a control signal for charging or discharging the power storage device in order to provide the power storage device with ancillary service;
A second acquisition unit that acquires a lifetime consumption value indicating a lifetime consumed by the power storage device that has been charged or discharged according to the control signal;
The control signal transmission unit repeatedly transmits the control signal to the power storage device until the acquired life consumption value exceeds the allowable life consumption value. The first acquisition unit further acquires a permissible period that is a period allowed for the power storage device to provide an ancillary service, and acquires the permissible lifetime consumption value within the permissible period,
The second acquisition unit acquires the lifetime consumption value within a charge / discharge period which is a period during which the power storage device is charged or discharged according to the control signal,
An ancillary service providing device using the power storage device further includes:
A determination unit that determines whether or not the lifetime consumption value exceeds the allowable lifetime consumption value, and determines whether or not the charge / discharge period exceeds the allowable period;
The power storage device repeatedly until the control signal transmission unit determines that the lifetime consumption value exceeds the allowable lifetime consumption value or until the charge / discharge period exceeds the allowable period The ancillary service providing apparatus using the power storage device according to claim 1. The second acquisition unit acquires a unit lifetime consumption value indicating a lifetime consumed by the power storage device every time the control signal transmission unit transmits the control signal, and acquires the unit lifetime consumption acquired within the charge / discharge period. The ancillary service providing device using the power storage device according to claim 2, wherein the lifetime consumption value within the charge / discharge period is acquired by calculating a value obtained by integrating the values as the lifetime consumption value. The second acquisition unit
Obtaining the unit life consumption value from the cycle life corresponding to the depth of discharge and the charge depth obtained from the life characteristics of the power storage device, and integrating the unit life consumption value obtained within the charge / discharge period The ancillary service providing apparatus using the power storage device according to claim 3, wherein the lifetime consumption value within the charge / discharge period is acquired by calculating the lifetime consumption value. The second acquisition unit calculates the lifetime consumption value using the total value of the charge / discharge power amount within the charge / discharge period of the power storage device, thereby calculating the lifetime consumption value within the charge / discharge period. An ancillary service providing device using the power storage device according to claim 2. The first acquisition unit, when charging according to the control signal, predicts that the power storage device is not charged up to a predetermined charge amount within a predetermined period, the power storage device within the predetermined period An ancillary service provision using the power storage device according to any one of claims 2 to 5, wherein a period during which charging according to the control signal is allowed to be charged up to a predetermined charge amount is acquired as the allowable period. apparatus. further,
The ancillary using the electrical storage apparatus of any one of Claims 1-6 provided with the price calculation part which calculates the compensation for the said electrical storage apparatus to provide an ancillary service using the said lifetime consumption value. Service providing device. The ancillary service providing device using the power storage device according to claim 7, wherein the consideration calculation unit calculates the consideration by multiplying the lifetime consumption value by a weighting factor. The consideration calculation unit multiplies the value obtained by multiplying the lifetime consumption value by a weighting factor by a weight function to an output that the power storage device waits for providing an ancillary service at a predetermined time within the charge / discharge period. The ancillary service providing device using the power storage device according to claim 7, wherein the value is calculated by adding a value obtained by integrating the values within the charge / discharge period and subtracting a predetermined value. A power storage device connected to a power system and controlled via a communication network by an ancillary service providing device that provides an ancillary service,
A storage battery, and a storage controller that charges or discharges the storage battery,
The power storage control unit
An electricity storage information transmitting unit for transmitting an allowable lifetime consumption value indicating a lifetime consumption of the storage battery allowed for providing an ancillary service to the ancillary service providing device;
From the ancillary service providing apparatus that has received the allowable lifetime consumption value, a control signal acquisition unit that acquires a control signal for charging or discharging the storage battery in order to provide an ancillary service;
According to the acquired control signal, a charge / discharge signal generation unit that generates a charge / discharge signal indicating a charge power value charged by the storage battery or a discharge power value discharged;
A charge / discharge signal transmitter for transmitting the generated charge / discharge signal to the storage battery in order to charge or discharge the storage battery with the charge power value or the power of the discharge power value;
A lifetime consumption value calculation unit that calculates a lifetime consumption value indicating a lifetime consumed by the storage battery that has been charged or discharged according to the charge / discharge signal;
A power storage device comprising: a lifetime consumption value transmitting unit that transmits the calculated lifetime consumption value to the ancillary service providing device. The lifetime consumption value calculation unit acquires a unit lifetime consumption value indicating a lifetime consumed by the storage battery every time the control signal acquisition unit acquires the control signal from the ancillary service providing apparatus, and according to the control signal By accumulating the unit life consumption value acquired within the charge / discharge period, which is the period during which the storage battery is charged or discharged, the life consumption value within the charge / discharge period is calculated,
The power storage device according to claim 10, wherein the lifetime consumption value transmission unit transmits the lifetime consumption value within the charge / discharge period to the ancillary service providing device. The lifetime consumption value calculation unit obtains the unit lifetime consumption value from the cycle lifetime corresponding to the depth of discharge and the charge depth obtained from the lifetime characteristics of the storage battery, and the unit lifetime consumption acquired within the charge / discharge period. The power storage device according to claim 11, wherein the lifetime consumption value within the charge / discharge period is calculated by integrating the values. The lifetime consumption value calculation unit uses the total value of the charge / discharge power amount of the storage battery within the charge / discharge period, which is the period during which the storage battery is charged or discharged according to the control signal, within the charge / discharge period. The power storage device according to claim 10, wherein the lifetime consumption value is calculated. The power storage information transmitting unit
In order to charge the storage battery to the predetermined amount of charge within the predetermined period when it is predicted that the storage battery will not be charged to a predetermined amount of charge within a predetermined period in charging according to the control signal Obtain a period in which charging according to the control signal is allowed as an allowed period,
The power storage device according to any one of claims 10 to 13, wherein the allowable period and the allowable lifetime consumption value within the allowable period are transmitted to the ancillary service providing apparatus. The power storage device according to any one of claims 10 to 14,
An ancillary service providing system using a power storage device, comprising: an ancillary service providing device using the power storage device according to any one of claims 1 to 9 that controls the power storage device. An ancillary service providing method for providing an ancillary service for performing supply and demand control of a power system to which the power storage device is connected, using a power storage device that repeats charging and discharging,
A first obtaining step of obtaining an allowable lifetime consumption value indicating a lifetime consumption of the power storage device allowed to provide an ancillary service;
A control signal transmission step of transmitting a control signal for charging or discharging the power storage device in order to provide the power storage device with ancillary service;
Obtaining a lifetime consumption value indicating a lifetime consumed by the power storage device that has been charged or discharged according to the control signal, and
In the control signal transmitting step, the ancillary service providing method using the power storage device that repeatedly transmits the control signal to the power storage device until the acquired life consumption value exceeds the allowable life consumption value.   The program which makes a computer perform the step contained in the ancillary service provision method using the electrical storage apparatus of Claim 16.

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