JP2018186607A - Priority level adding device and priority level adding program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a power supply company to control the type of power to be discharged from a storage battery.SOLUTION: The priority level adding device comprises a storage battery information acquiring unit that acquires storage battery information about a storage battery owned by a consumer, a power information acquiring unit that acquires power information indicating at least either power which can be charged to the storage battery or power which can be discharged from the storage battery, and a priority level adding unit that adds a priority level to power to be charged to/discharged from the storage battery on the basis of the storage battery information acquired by the storage battery information acquiring unit, the power information acquired by the power information acquiring unit, and power reference information indicating a reference of power to be charged to/discharged from the storage battery.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a priority adding device and a priority adding program.

  2. Description of the Related Art Conventionally, a technique for calculating the amount of power that can be supplied to a power system by a power generator such as a thermal power generator or a hydraulic power generator connected to the power system is known. In addition, when a sudden output fluctuation or a shortage of generated power occurs in a generator, a technique is known in which a storage battery that supplies power to the power system instead of the generator calculates the amount of power that can be supplied to the power system. (For example, Patent Document 1).

JP 2014-90665 A

Here, there are cases where a consumer is provided with a storage battery connected to the power system, and it is possible to supply power from the storage battery to the power system. In this case, the power system can supply stable power.
A plurality of types of electric power are stored in the storage battery. The types of electric power are, for example, electric power with a low price and electric power with a high price when the storage battery stores electric power supplied by the electric power system. The types of electric power are, for example, electric power with a large amount of carbon dioxide discharged when generating electric power stored in a storage battery and electric power with a small amount. If charging / discharging of the storage battery is controlled according to the type of power stored in the storage battery, the power system is supplied with the type of power that meets the requirements of the power supply company.
For example, when a power supply company requests charging / discharging of low-cost power and the storage battery discharges low-priced power to the power system, the power supply company can reduce the cost of power supplied by the power system. .
However, in the conventional technology, even if the power and the amount of power that can be supplied from the generator and storage battery connected to the power system can be calculated, the power supply company can control the type of power discharged from the storage battery. It may be difficult to do so.
The present invention has been made in view of the above problems, and an object thereof is to enable a power supply company to control the type of power discharged from a storage battery.

  One aspect of the present invention is a storage battery information acquisition unit that acquires storage battery information related to a storage battery possessed by a consumer, power and power amount that can be charged by the storage battery, and power and power amount that can be discharged. The power information acquisition unit that acquires power information indicating at least one, the storage battery information acquired by the storage battery information acquisition unit, the power information acquired by the power information acquisition unit, and the storage battery is charged or discharged. It is a priority addition apparatus provided with the priority addition part which adds a priority to the electric power which the said storage battery charges or discharges based on the electric power reference information which shows the electric power reference | standard.

  In the priority adding device according to one aspect of the present invention, the power reference information includes price information indicating a price of power stored in the storage battery, efficiency when the storage battery discharges power, and charging. The efficiency information indicating at least one of the efficiency and the efficiency when discharging the charged power, the deterioration information indicating the degree of deterioration of the storage battery, and the storage battery discharging the power It includes at least one of carbon dioxide information indicating the amount of carbon dioxide.

  In the priority adding device according to one aspect of the present invention, the power information is information indicating a prediction of power that can be charged and discharged by the storage battery.

  Further, according to one embodiment of the present invention, a storage battery information acquisition step for acquiring storage battery information related to a storage battery that a consumer has in a computer, electric power that can be charged by the storage battery, electric energy, and electric power that can be discharged Power information acquisition step for acquiring power information indicating at least one of the power amount, the storage battery information acquired by the storage battery information acquisition step, the power information acquired by the power information acquisition step, and the storage battery Is a priority addition program for executing a priority addition step of adding a priority to the electric power charged or discharged by the storage battery based on electric power reference information indicating a reference of electric power to be charged or discharged.

  According to the present invention, the power supply company can control the type of power discharged from the storage battery.

It is a figure which shows the outline | summary of the priority addition apparatus of 1st Embodiment. It is a figure which shows an example of a structure of the priority addition apparatus of 1st Embodiment. It is a flowchart which shows an example of operation | movement of the priority addition apparatus of 1st Embodiment. It is a graph which shows an example of the possible output information of the storage battery of 3rd Embodiment. It is a graph which shows an example of the output electric energy information of the storage battery of 3rd Embodiment. It is a graph which shows an example of the loss information of the storage battery of 3rd Embodiment. It is a graph which shows an example of the total charge / discharge amount information of the storage battery of 3rd Embodiment. It is a graph which shows an example of the calendar information of the storage battery of 3rd Embodiment. It is a graph which shows an example of the charging / discharging cycle information of the storage battery of 3rd Embodiment. It is a graph which shows an example of the cost information of the storage battery of 3rd Embodiment. It is a graph which shows an example of the unit power loss information of the storage battery of a 3rd embodiment. It is a graph which shows an example of the total CO2 amount information of the storage battery of 3rd Embodiment.

[First Embodiment]
The first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an overview of the priority adding apparatus 1 of the present embodiment.

<About power system>
The grid power supply facility SS is connected via a wire L to a consumer who receives power supply from the grid power supply facility SS. The grid power supply facility SS is, for example, a substation. The electric wire L is, for example, a distribution line. In the following description, facilities for supplying electric power to consumers are collectively referred to as an electric power system EPS. The power system EPS includes a system power supply facility SS and an electric wire L.

The consumer includes a consumer having equipment capable of supplying power to another consumer connected to the power system EPS via the electric wire L of the power system EPS. In the following description, a facility that can supply power according to a request is referred to as a power supply facility ESS. The power supply facility ESS includes a single power source or a plurality of power sources. In this example, the case where this power supply is the storage battery BT will be described. Further, in this example, the case where the power supply provided in the power supply facility ESS is one type of storage battery BT will be described. However, the power supply facility ESS is combined with a plurality of types of power supplies and a plurality of types of storage batteries. Also good. The power source provided in the power supply facility ESS is, for example, the generator PG and the storage battery BT. The generator PG is, for example, a thermal power generator, a hydraulic power generator, a solar power generator, or the like. The storage battery BT provided in the power supply facility ESS is, for example, a lithium ion battery, a redox flow battery, a sodium sulfur battery, or the like. Moreover, a consumer provided with the power supply equipment ESS is a facility such as a hotel, a university, a factory, or a hospital.
In the following description, a consumer provided with the power supply facility ESS is referred to as a supply consumer. In the following description, a consumer who is a consumer other than the supply consumer and connected to the same power system EPS as the supply consumer is referred to as a general consumer.

As described above, the power supply facility ESS provided by the supply consumer may be the storage battery BT. In this case, the storage battery BT can supply electric power stored in the storage battery BT to consumers via the electric wires L of the electric power system EPS. Moreover, when the electric power which the electric power grid | system EPS supplies surplus, the storage battery BT can consume the electric power which the electric power grid | system EPS supplies by charging. In this example, a case where a plurality of general consumers (not shown) and a plurality of supply consumers are connected to the power system EPS will be described. Specifically, factory FC1, factory FC2,..., Factory FCn, which are supply consumers, are connected to power system EPS. n is an integer of 3 or more. The factory FC1 includes a storage battery BT1 that is a power supply facility ESS. The factory FC2 includes a storage battery BT2 that is a power supply facility ESS. The factory FCn includes a storage battery BTn that is a power supply facility ESS.
In the following description, when the factory FC1, factory FC2,..., Factory FCn are not distinguished, they are collectively referred to as factory FC. Moreover, in subsequent description, when not distinguishing storage battery BT1, storage battery BT2, ..., storage battery BTn, it describes collectively as storage battery BT.

In the above description, the case where the factory FC1, the factory FC2,..., The factory FCn, which are supply consumers, is connected to the power system EPS is described, but the present invention is not limited thereto. Two or more supply consumers need only be connected to the power system EPS.
In the above description, the case where the factory FC1, the factory FC2,..., The factory FCn, which is the supply consumer, includes only the storage battery BT as the power supply facility ESS has been described. The combination of power source types may be different. For example, the supply consumer may include both the storage battery BT and the generator PG as power sources.

<About the shortage and surplus of power in the power system>
Here, when the customer uses power exceeding the power supplied by the power system EPS, the power supplied by the power system EPS is insufficient. In addition, when the customer uses power below the amount of power supplied by the power system EPS, the power supplied by the power system EPS is redundant. Further, in order to efficiently generate power, the grid power supply facility SS preferably has a constant amount of power to be generated (does not change suddenly). Therefore, in order for the power grid EPS to stably supply power to general consumers and supply consumers and the grid power supply facility SS to generate power efficiently, the storage battery BT of the supply consumer must be stored in the power grid EPS. It is preferable that charging / discharging is performed according to the state of power.
Specifically, when the power supplied by the power system EPS is insufficient, the supply consumer discharges the power charged in the storage battery BT and uses the discharged power instead of the power supplied from the power system EPS. To do. Thereby, consumption of the electric power of the electric power system EPS is suppressed, and the electric power of the electric power system EPS is maintained appropriately. Moreover, when the electric power which the electric power grid | system EPS supplies surplus, the storage battery BT which a supply consumer has charges the electric power surplus of the electric power grid | system EPS, and demands, and the electric power of the electric power grid | system EPS is kept appropriate.
Here, the supplied or demanded electric power may be required for a short time and high power, or may be required for a long time. In this case, the value of power is indicated by a power value (kW) and a power amount value (kWh).
Specifically, the power supply company may implement a demand adjustment method to suppress power consumption of a consumer who receives power supply from the power supply company (hereinafter referred to as customer U). The demand adjustment method is an electricity rate plan or a demand response method according to the time zone. For example, in an electricity bill plan or a demand response system according to a time zone, the price of power supplied from the power system EPS may vary depending on the conditions when the power is supplied.
The priority adding device 1 of the present embodiment urges the power supply facility ESS to supply (discharge) power or arouses demand (charge) based on information about the power supply facility ESS connected to the power system EPS. It is a device that outputs information.

<Overview of priority adding device>
As shown in FIG. 1, the priority adding device 1 is provided in the building of the collection company AG. The collection company AG is a company that aggregates information on the power supply facilities ESS of a plurality of supply consumers and prompts the power supply facilities ESS to supply and demand (charge / discharge) the power according to the power state of the power system EPS. is there.
The supply consumer including the power supply facility ESS for which the collection company AG collects information and the priority adding device 1 are connected via a network N capable of transmitting and receiving information. In this example, the priority adding device 1 and a terminal (hereinafter referred to as a terminal DV) possessed by each supply consumer are connected via a network N. Each terminal DV supplies storage battery information BTI and power information EI to the priority adding device 1 via the network N. The storage battery information BTI is information related to the power supply facility ESS (in this example, the storage battery BT). The power information EI is information indicating the power and the amount of power that can be charged and discharged by the power supply facility ESS (in this example, the storage battery BT). The priority adding device 1 adds a priority when each storage battery BT performs charge / discharge based on the storage battery information BTI acquired from the storage battery BT of the supply consumer. The priority adding device 1 processes information based on the priority, and outputs information (hereinafter referred to as instruction information DR) that instructs the storage battery BT about the power and the amount of power related to charging / discharging.

Instead of the configuration in which the priority adding device 1 acquires the storage battery information BTI and the power information EI from the terminal DV, a configuration in which the priority addition device 1 acquires the storage battery information BTI from the control device may be used. In this case, the storage battery BT is provided with a control device that controls charging or discharging of the storage battery BT. The control device is connected to the priority adding device 1 via the network N. Further, the control device outputs the storage battery information BTI and the power information EI to the priority adding device 1.
In the above description, the storage battery information BTI and the power information EI have been described as being supplied to the priority adding device 1 through communication via the network N. However, the present invention is not limited thereto. The storage battery information BTI and the power information EI may be configured such that, for example, the consumer U transmits the information to the person having the priority adding device 1 (in this example, the collection company AG) by telephone or the like. . In this case, the priority adding device 1 includes an input unit that inputs the storage battery information BTI and the power information EI. The collection business operator AG inputs the storage battery information BTI and the power information EI transmitted from the consumer U to the input unit. Thereby, the priority addition apparatus 1 acquires the storage battery information BTI and the power information EI.

<Configuration of priority adding device>
Hereinafter, the configuration of the priority adding apparatus 1 will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of the configuration of the priority adding apparatus 1 according to the first embodiment.
As described above, the priority adding device 1 and the terminal DV are connected via the network N so that information can be transmitted and received. The terminal DV transmits the storage battery information BTI and the power information EI to the priority adding device 1. In addition, a power reference information supply device ED is connected to the priority adding device 1. The power reference information supply device ED is a device that supplies the power reference information EDI to the priority adding device 1. The power reference information EDI is information indicating a reference of power that is charged or discharged by the storage battery BT. Specifically, in the power reference information EDI, reference information that adds priority when the storage battery BT performs charge / discharge among the information included in the storage battery information BTI is shown. The power reference information EDI is information determined by, for example, the owner of the grid power supply facility SS, the owner of the electric wire L, or a power supply company that supplies power via the power grid EPS.

  The priority adding device 1 includes a control unit 100. The control unit 100 includes a CPU (Central Processing Unit), and includes a storage battery information acquisition unit 110, a power information acquisition unit 120, a power reference information acquisition unit 130, a priority addition unit 140, and an output unit 150. It is provided as a functional part. The storage battery information acquisition unit 110 acquires storage battery information BTI from the power supply facility ESS. The storage battery information acquisition unit 110 supplies the acquired storage battery information BTI to the priority addition unit 140. The power information acquisition unit 120 acquires power information EI from the power supply facility ESS. The power reference information acquisition unit 130 acquires power reference information EDI from the power reference information supply device ED. The power reference information acquisition unit 130 supplies the acquired power reference information EDI to the priority adding unit 140.

The priority adding unit 140 acquires the storage battery information BTI from the storage battery information acquisition unit 110. Further, the priority adding unit 140 acquires power information EI from the power information acquiring unit 120. The priority adding unit 140 acquires the power reference information EDI from the power reference information acquiring unit 130.
The priority adding unit 140 adds priority to the power charged or discharged by the storage battery BT based on the acquired storage battery information BTI, power information EI, and power reference information EDI. Specifically, the priority adding unit 140 adds a priority based on information indicated by the power reference information EDI among the information included in the storage battery information BTI. Moreover, the priority addition part 140 is based on the added priority, the electric power charged in the storage battery BT, the electric energy charged in the storage battery BT, the electric power discharged from the storage battery BT, and the electric energy discharged from the storage battery BT. Instruction information DR indicating at least one of them is generated. The priority adding unit 140 supplies the generated instruction information DR to the output unit 150. The output unit 150 acquires the instruction information DR from the priority adding unit 140. The output unit 150 transmits the instruction information DR to the terminal DV. The supply consumer charges or discharges the storage battery BT based on the instruction information DR transmitted to the terminal DV. Specifically, the supply consumer charges or discharges the storage battery BT based on the electric power or the electric energy indicated by the instruction information DR.

Hereinafter, the operation of the priority adding apparatus 1 will be described with reference to FIG.
FIG. 3 is a flowchart showing an example of the operation of the priority adding apparatus 1 according to the first embodiment.
The storage battery information acquisition part 110 with which the priority addition apparatus 1 is provided acquires the storage battery information BTI from the terminal DV (step S110). The power information acquisition unit 120 acquires power information EI from the terminal DV (step S120). The power reference information acquisition unit 130 acquires the power reference information EDI from the power reference information supply device ED (step S130). The priority adding unit 140 is based on the storage battery information BTI acquired by the storage battery information acquisition unit 110, the power information EI acquired by the power information acquisition unit 120, and the power reference information EDI acquired by the power reference information acquisition unit 130. The priority is added to the power charged or discharged by the storage battery BT (step S140). The output unit 150 outputs the instruction information DR generated based on the priority added by the priority adding unit 140 (step S150).

  In the above description, the output unit 150 outputs the instruction information DR, and the storage battery BT is charged / discharged according to the instruction information DR. However, the present invention is not limited to this. The output unit 150 may output information indicating the priority added by the priority adding unit 140. In this case, the supply consumer who acquired the information indicating the priority by the terminal DV may refer to the information and control charging / discharging of the storage battery BT.

<Priority addition device: When power in the power system is insufficient>
Hereinafter, a case where the power of the power system EPS is insufficient and the storage battery BT is discharged based on the instruction information DR of the priority adding device 1 will be described. In this case, the priority adding device 1 adds priority to the power discharged from the storage battery BT. In this example, a case will be described in which any of the storage batteries BT of the supply consumer is charged so as to be discharged. In other words, the power information EI acquired from the terminal DV indicates that the power and the amount of power that can be discharged by any of the storage batteries BT are stored.

<About battery information>
In the following description, the storage battery information BTI acquired from the terminal DV when the priority adding device 1 outputs the instruction information DR instructing the discharge of the storage battery BT will be referred to as storage battery information BTI1. The storage battery information BTI1 includes discharge efficiency information DF, price information VL, and contract unit price information CP. The priority addition apparatus 1 acquires storage battery information BTI1 from the terminal DV of each supply consumer having the storage battery BT1, the storage battery BT2, and the storage battery BTn. Hereinafter, each piece of information included in the storage battery information BTI1 will be described.
The storage battery information BTI1 is, instead of the configuration including the discharge efficiency information DF, the price information VL, and the contract unit price information CP, among the discharge efficiency information DF, the price information VL, and the contract unit price information CP. It may be a configuration including at least one.

<Discharge efficiency information DF>
The discharge efficiency information DF is information indicating the efficiency when the storage battery BT discharges power. In general, when the electric power discharged from the storage battery BT is discharged, a power loss occurs. In this example, the discharge efficiency information DF is indicated by the ratio (ratio) of the discharge power amount excluding the power amount consumed when discharging the discharge power amount discharged from the storage battery BT. In the storage battery BT, the larger the value of the discharge efficiency information DF, the smaller the loss of power and the better the discharge efficiency. Further, the storage battery BT has a larger power loss and a lower discharge efficiency as the value of the discharge efficiency information DF is smaller.

  When the power reference information EDI indicates the discharge efficiency information DF, the priority adding device 1 adds priority to the power discharged from the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the discharge efficiency information DF. For example, the priority adding device 1 gives an instruction to preferentially discharge the power of the storage battery BT with less power loss by adding a high priority to power having high discharge efficiency information DF. In this case, the priority adding apparatus 1 can suppress the power loss that accompanies the discharge of the storage battery BT according to the instruction information DR. In other words, it is possible to suppress an unnecessary consumption of an electricity bill corresponding to the amount of power loss.

<Discharge price information>
The discharge price information VLO is information indicating the price of electric power or electric energy stored in the storage battery BT. Here, the power supply company may implement a demand adjustment method to suppress power consumption of the consumer U. The demand adjustment method is an electricity rate plan or a demand response method according to the time zone. For example, in an electricity bill plan or a demand response system according to a time zone, the price of power supplied from the power system EPS may vary depending on the conditions when the power is supplied. In this example, the discharge price information VLO is based on the price of the power when the storage battery BT charges power from the power system EPS, the amount of power to be charged, the charging efficiency of the storage battery BT, and the discharge efficiency. The unit price calculated is information indicating the unit price per 1 kWh of the amount of power discharged from the storage battery BT. Here, the charging efficiency of the storage battery BT is an efficiency of converting AC power supplied in the power system EPS into DC power stored in the storage battery BT.

When the power reference information EDI indicates the discharge price information VLO, the priority adding device 1 adds priority to the power discharged from the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the discharge price information VLO. For example, the priority adding device 1 adds a high priority to power with low discharge price information VLO. Thereby, the priority addition apparatus 1 gives an instruction to preferentially discharge the power of the storage battery BT whose unit price per kWh of power stored in the storage battery BT is low. Therefore, the priority adding device 1 can reduce the electricity bill corresponding to the amount of power discharged from the storage battery BT according to the instruction information DR.
In addition, when the instruction information DR requested from the power system EPS cannot be supplied by one storage battery BT, the priority adding device 1 may combine the plurality of storage batteries in ascending order of cost.

<Contract unit price information>
The contract unit price information CP is information indicating the price of power based on a contract between a supply consumer and a power supply company. Here, the supply consumer is a contract related to the use of electric power, and there is a case where a contract for an electric charge different from that of a general consumer is made with the power supply company. In this example, the contract unit price information CP is information indicating a unit price per kWh of power supplied from the power system EPS when a supply consumer charges the storage battery BT.

  When the power reference information EDI indicates the contract unit price information CP, the priority adding device 1 adds priority to the power discharged from the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the contract unit price information CP. For example, the priority adding device 1 adds a high priority to power with a low contract unit price information CP. Thereby, the priority addition apparatus 1 gives an instruction to preferentially discharge the power of the storage battery BT whose unit price per kWh of power stored in the storage battery BT is low. Therefore, the priority adding device 1 can reduce the electricity bill corresponding to the amount of power discharged from the storage battery BT according to the instruction information DR.

<Priority addition device: When power in the power system is surplus>
Hereinafter, a case where the power of the power system EPS is surplus and the storage battery BT is charged based on the instruction information DR of the priority adding device 1 will be described. In this case, the priority adding device 1 adds priority to the power charged by the storage battery BT. In this example, a case will be described in which any of the storage batteries BT of the supply consumer is discharged in a chargeable manner. In other words, the power information EI acquired from the terminal DV is information indicating that all of the storage batteries BT store the amount of power that can be charged.

<About battery information>
In the following description, the storage battery information BTI acquired from the terminal DV when the priority adding apparatus 1 outputs the instruction information DR instructing the charging of the storage battery BT will be referred to as storage battery information BTI2. The storage battery information BTI2 includes charging efficiency information CF and charging price information VLI. The priority addition apparatus 1 acquires storage battery information BTI2 from the terminal DV of each supply consumer having the storage battery BT1, the storage battery BT2, and the storage battery BTn. Hereinafter, each piece of information included in the storage battery information BTI2 will be described.
The storage battery information BTI2 may be configured to include the charging efficiency information CF or the charging price information VLI instead of the configuration including the charging efficiency information CF and the charging price information VLI.

<About charging efficiency information>
The charging efficiency information CF is information indicating the efficiency when the storage battery BT charges power. Generally, when the storage battery BT is charged, power loss occurs. In this example, the charging efficiency information CF is indicated by the ratio (ratio) of the amount of power charged in the storage battery BT to the amount of power used when the storage battery BT is charged. In the storage battery BT, the larger the value of the charging efficiency information CF, the smaller the loss of power and the better the charging efficiency. Further, the storage battery BT has a lower power efficiency as the value of the charging efficiency information CF is smaller, and the charging efficiency is worse.

  When the power reference information EDI indicates the charging efficiency information CF, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the charging efficiency information CF. For example, the priority adding device 1 gives an instruction to preferentially charge the electric power of the storage battery BT with less power loss by adding a high priority to electric power with high charging efficiency information CF. In this case, the priority adding device 1 can suppress power loss that accompanies charging of the storage battery BT in accordance with the instruction information DR. In other words, it is possible to suppress an unnecessary consumption of an electricity bill corresponding to the amount of power loss.

<About charging price information>
The charge price information VLI is information indicating the unit price of power when the storage battery BT is charged and supplied with power from the power system EPS. As described above, as the power supply company performs the demand adjustment method, the price of the power supplied from the power system EPS may differ depending on the conditions when the power is supplied. In this example, the charging price information VLI is calculated based on the price of the power when the storage battery BT charges power from the power system EPS, the amount of power to be charged, and the charging efficiency of the storage battery BT. The unit price is information indicating the unit price per kWh of the amount of power stored in the storage battery BT. Here, the charging efficiency of the storage battery BT is an efficiency of converting AC power supplied in the power system EPS into DC power stored in the storage battery BT.

  When the power reference information EDI indicates the charging price information VLI, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the charging price information VLI. For example, the priority adding device 1 adds a high priority to power with low charge price information VLI. Thereby, the priority addition apparatus 1 instruct | indicates preferentially charging the electric power of the storage battery BT with the cheap unit price per kWh of the electric power stored in the storage battery BT. Therefore, the priority adding device 1 can reduce the electricity bill corresponding to the amount of power charged by the storage battery BT according to the instruction information DR.

[Modification]
Hereinafter, a modification according to the first embodiment will be described.
In the first embodiment, the case where the storage battery BT is charged or discharged according to the instruction information DR of the priority adding device 1 has been described.
In the modification, a case where the storage battery BT is charged and discharged according to the instruction information DR of the priority adding device 1 will be described.

<Priority addition device: When the power of the power system is insufficient or surplus>
Hereinafter, the case where the power of the power system EPS is insufficient or excessive and the storage battery BT is charged or discharged based on the instruction information DR of the priority adding device 1 will be described. In this case, the priority adding device 1 adds priority to the electric power charged or discharged by the storage battery BT. In this example, a case will be described in which any of the storage batteries BT of the supply consumer is chargeable / dischargeable. In other words, the power information EI acquired from the terminal DV indicates that the amount of power that can be charged or discharged by any of the storage batteries BT is stored.

<About battery information>
In the following description, the storage battery information BTI acquired from the terminal DV when the priority adding device 1 outputs the instruction information DR instructing charging / discharging of the storage battery BT is referred to as storage battery information BTI3. The storage battery information BTI3 includes charge / discharge efficiency information CE. The priority addition apparatus 1 acquires the storage battery information BTI3 from the terminal DV of each supply consumer having the storage battery BT1, the storage battery BT2, and the storage battery BTn. Hereinafter, the charge / discharge efficiency information CE included in the storage battery information BTI3 will be described.

<About charge / discharge efficiency information>
The charge / discharge efficiency information CE is information indicating the amount of power that can be discharged with respect to the amount of power charged by the storage battery BT. As described above, power loss occurs when the storage battery BT is charged and discharged. Therefore, the amount of power that can be output is smaller between the amount of power supplied from the power system EPS when storing power in the storage battery BT and the amount of power that can actually be output from the storage battery BT. In this example, the charge / discharge efficiency information CE is the ratio (ratio) of the amount of power that can be output from the storage battery BT to the amount of power supplied from the power system EPS when storing the storage battery BT. In the storage battery BT, the larger the value of the charge / discharge efficiency information CE, the smaller the loss of power and the better the charge / discharge efficiency. In addition, the storage battery BT has a larger power loss and a lower charge / discharge efficiency as the value of the charge / discharge efficiency information CE is smaller.

  When the power reference information EDI indicates the charge / discharge efficiency information CE, the priority adding device 1 adds priority to the power charged / discharged by the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the charge / discharge efficiency information CE. For example, the priority adding device 1 gives an instruction to preferentially charge / discharge the power of the storage battery BT with less power loss by adding a high priority to power having high charge / discharge efficiency information CE. In this case, the priority adding device 1 can suppress power loss that accompanies charging or discharging of the storage battery BT according to the instruction information DR. In other words, it is possible to suppress an unnecessary consumption of an electricity bill corresponding to the amount of power loss.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described.
In the first embodiment and the modification, the priority adding device 1 adds priority to the electric power of the storage battery BT so that the electricity charge of the supply consumer accompanying the charging or discharging of the storage battery BT is suppressed or reduced. Explained when to do.
2nd Embodiment demonstrates the case where the priority addition apparatus 1 adds a priority to the electric power of the storage battery BT based on elements other than the electricity bill of a supply consumer.

<Priority addition device: When the power of the power system is insufficient or surplus>
Hereinafter, the case where the power of the power system EPS is insufficient or excessive and the storage battery BT is charged or discharged based on the instruction information DR of the priority adding device 1 will be described. In this case, the priority adding device 1 adds priority to the electric power charged or discharged by the storage battery BT. As described above, this priority is a priority that is added based on factors other than the electricity charges of supply consumers. In this example, a case will be described in which any of the storage batteries BT of the supply consumer is chargeable / dischargeable. In other words, the power information EI acquired from the terminal DV indicates that the amount of power that can be charged or discharged by any of the storage batteries BT is stored.

<About battery information>
The priority addition device 1 describes the storage battery information BTI acquired from the terminal DV as storage battery information BTI4 when adding priority to the power stored in the storage battery BT based on factors other than the electricity charges of the supply consumer. . The storage battery information BTI4 includes carbon dioxide information CO, residual value information SP, value prediction information FP, deterioration information DD, temperature information TP, and reliability information RB. The priority addition apparatus 1 acquires the storage battery information BTI4 from the terminal DV of each supply consumer having the storage battery BT1, the storage battery BT2, and the storage battery BTn. Hereinafter, each piece of information included in the storage battery information BTI4 will be described.
The storage battery information BTI4 includes at least one of carbon dioxide information CO, residual value information SP, value prediction information FP, deterioration information DD, temperature information TP, and reliability information RB. It may be.

<About carbon dioxide information>
The carbon dioxide information CO is information indicating the amount of carbon dioxide that is discharged when generating electric power stored in the storage battery BT. Here, the amount of carbon dioxide discharged when the electric power stored in the storage battery BT is generated may be different. For example, the power stored in the storage battery BT includes power supplied from the power grid EPS, power generated by the generator PG connected to the storage battery BT so that power can be supplied, and the like. In this case, the electric power stored in the storage battery BT may differ in the amount of carbon dioxide discharged when generating the electric power depending on the power supply source. The carbon dioxide information CO is information indicating the amount of carbon dioxide discharged when generating 1 kWh of electric power stored in the storage battery BT.
Note that the amount of carbon dioxide that is discharged when generating the electric power stored in the storage battery BT may vary depending on the charging efficiency, discharging efficiency, and charging / discharging efficiency of the storage battery BT. For this reason, it is preferable that the priority addition part 140 adds a priority based on the discharge efficiency information DF, the charge efficiency information CF, and the charge / discharge efficiency information CE together with the carbon dioxide information CO.

  When the power reference information EDI indicates the carbon dioxide information CO, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the carbon dioxide information CO. For example, the priority adding device 1 adds a high priority to the power of the storage battery BT with a small amount of carbon dioxide emission indicated by the carbon dioxide information CO. Accordingly, the priority adding device 1 instructs to preferentially discharge the power of the storage battery BT that emits less carbon dioxide when the power stored in the storage battery BT is generated. Accordingly, the priority adding device 1 can instruct the use of electric power in consideration of the environment.

<About residual value information>
The residual value information SP is information indicating the current value of the storage battery BT. Here, the storage battery BT is deteriorated by being charged and discharged and used. The degree of deterioration of the storage battery BT varies depending on the total usage time for each storage battery BT. The total use time of the storage battery BT is the sum of the use time of the storage battery BT and the scheduled use time. The usage time of the storage battery BT is the time when the storage battery BT has already been used. The scheduled use time of the storage battery BT is a time calculated by a known method based on the current state of the storage battery BT, and is a time during which the storage battery BT can be used from now. In this example, the remaining value information SP is indicated by a ratio between the value of the storage battery BT on the day and the rated capacity of the storage battery BT. Specifically, the residual value information SP is a value obtained by dividing a value indicating the value of the storage battery BT on the day by a value indicating the rated capacity of the storage battery BT. Further, the value of the storage battery BT on the day is a ratio between the purchase cost of the storage battery BT and the total usage time of the storage battery BT. Specifically, the value on the day of the storage battery BT is a value obtained by dividing the value indicating the purchase cost of the storage battery BT by the value indicating the total usage time of the storage battery BT. The rated capacity of the storage battery BT is the amount of power that can be stored in the storage battery BT determined as the specification of the storage battery BT, or the power that can be supplied by the storage battery BT. Specifically, the residual value information SP is information indicating the value per 1 kWh or 1 kW of the storage battery BT of a certain day. The residual value information SP indicates a small value among the plurality of storage batteries BT having the same total usage time and the rated capacity, and the residual value information SP of the storage battery BT having a low purchase cost of the storage battery BT indicates the purchase cost of the storage battery BT. The residual value information SP of the expensive storage battery BT shows a large value.

  When the power reference information EDI indicates the residual value information SP, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the residual value information SP. Here, a supply consumer having a storage battery BT with a high purchase cost may want to obtain a high profit as the storage battery BT is charged and discharged. In this case, the supply consumer who has the storage battery BT may set a high price to be obtained from the power supply company as the storage battery BT is charged and discharged. The priority adding device 1 adds a high priority to the power of the storage battery BT having a small value of the residual value information SP, for example. Therefore, the priority addition apparatus 1 can reduce the fee paid to the supply consumer by the power supply company as the storage battery BT is charged / discharged according to the instruction information DR.

  In the above description, the case where the residual value information SP is indicated by the ratio between the value of the storage battery BT on the day and the rated capacity of the storage battery BT is described, but the present invention is not limited thereto. The residual value information SP may be indicated by a ratio between the value of the storage battery BT on the current day and the actual capacity of the storage battery BT on the current day. The actual capacity of the storage battery BT on the day is the power capacity that the storage battery BT can actually store on the day. The actual capacity of the storage battery BT on the day is calculated based on, for example, the operation years, the number of charge / discharge cycles, the operation results, and the like.

<About deterioration state information>
The deterioration information DD is information indicating the degree of deterioration of the storage battery BT. Specifically, the deterioration information DD is information indicating the ratio between the estimated usage time and the scheduled usage time. The assumed usage time is, for example, a time during which the storage battery BT determined as the specification of the storage battery BT can be used. Therefore, the larger the value indicated by the deterioration information DD, the more the storage battery BT is deteriorated. Further, as the value indicated by the deterioration information DD is smaller, the deterioration of the storage battery BT is not progressing.

  When the power reference information EDI indicates the deterioration information DD, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the deterioration information DD. For example, the priority adding device 1 may add a high priority to the power of the storage battery BT having a low value indicated by the deterioration information DD. Here, the storage battery BT can supply electric power longer (or more) than the storage battery BT in which the deterioration has progressed in the storage battery BT in which the deterioration has not progressed. Therefore, the priority adding device 1 can preferentially discharge the power of the storage battery BT that has not deteriorated, and can stably suppress the shortage of power of the power system EPS. Moreover, the priority addition apparatus 1 can suppress deterioration of the storage battery BT by not using the storage battery BT in which deterioration has progressed.

<About temperature information>
The temperature information TP is information indicating the degree of deterioration of the storage battery BT. Specifically, the temperature information TP is information indicating the average temperature of the usage environment of the storage battery BT or the temperature of the storage battery BT itself. Here, the deterioration of the storage battery BT may progress as the use environment of the storage battery BT or the temperature of the storage battery BT itself increases. Specifically, the storage battery BT may be deteriorated when the average temperature of the usage environment of the storage battery BT is 30 degrees or more. Therefore, the deterioration of the storage battery BT progresses as the value indicated by the temperature information TP increases. Further, the smaller the value indicated by the temperature information TP, the less the storage battery BT is deteriorated.

  When the power reference information EDI indicates the temperature information TP, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the temperature information TP. For example, the priority adding device 1 may add a high priority to the power of the storage battery BT having a low value indicated by the temperature information TP. Here, the storage battery BT can supply electric power longer (or more) than the storage battery BT in which the deterioration has progressed in the storage battery BT in which the deterioration has not progressed. Therefore, the priority adding device 1 can preferentially discharge the power of the storage battery BT that has not deteriorated, and can stably suppress the shortage of power of the power system EPS. Moreover, the priority addition apparatus 1 can suppress deterioration of the storage battery BT by not using the storage battery BT in which deterioration has progressed.

<About reliability information>
The reliability information RB is information indicating the reliability of the location where the storage battery BT is installed. Here, the storage battery BT may be required to supply power to the factory FC when power is not supplied to the factory FC due to a failure caused by weather conditions such as lightning, snow, and strong wind. In this case, since the storage battery BT is disconnected from the power grid EPS and charged and discharged, it is difficult to connect to the power grid EPS and charge and discharge. In this example, the reliability information RB is information indicating the reliability value (reliability) of the storage battery BT in accordance with the weather conditions at the location where the storage battery BT is installed. Specifically, when the weather condition of the location where the storage battery BT is installed is poor, the reliability of the storage battery BT indicated by the reliability information RB is a low value. Moreover, when there is no problem in the weather condition of the location where the storage battery BT is installed, the reliability of the storage battery BT indicated by the reliability information RB indicates a high value. Further, the reliability information RB may indicate a facility operation rate, a success rate with respect to the instruction information DR, and the like as reliability of the storage battery BT itself. Here, the facility operation rate is the ratio (ratio) of the average failure interval to the sum of the average repair time and the average failure interval. The success rate for the instruction information DR is a ratio (ratio) of the number of times charging / discharging is performed according to the instruction information DR with respect to the number of times the storage battery BT acquires the instruction information DR.

  When the power reference information EDI indicates the reliability information RB, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the reliability information RB. For example, the priority adding device 1 may add a high priority to the power of the storage battery BT having a high value indicated by the reliability information RB. In this case, the priority adding device 1 can preferentially charge or discharge the power of the highly reliable storage battery BT, and can stably suppress surplus or shortage of the power of the power system EPS.

[Third Embodiment]
The third embodiment of the present invention will be described below with reference to the drawings.
In the first embodiment and the modification, the priority adding device 1 adds priority to the electric power of the storage battery BT so that the electricity charge of the supply consumer accompanying the charging or discharging of the storage battery BT is suppressed or reduced. Explained when to do. Moreover, 2nd Embodiment demonstrated the case where the priority addition apparatus 1 adds a priority to the electric power of the storage battery BT based on elements other than the electricity bill of a supply consumer.
3rd Embodiment demonstrates the case where priority is added to the electric power stored in storage battery BT based on the electrochemical characteristic of storage battery BT.

<Priority addition device: When the power of the power system is insufficient or surplus>
Hereinafter, the case where the power of the power system EPS is insufficient or excessive and the storage battery BT is charged or discharged based on the instruction information DR of the priority adding device 1 will be described. In this case, the priority adding device 1 adds priority to the electric power charged or discharged by the storage battery BT. As described above, this priority is a priority added based on the electrochemical characteristics of the storage battery BT. In this example, a case will be described in which any of the storage batteries BT of the supply consumer is chargeable / dischargeable. In other words, the power information EI acquired from the terminal DV indicates that all of the storage batteries BT are charged with the amount of power that can be charged or discharged.

<About battery information>
The priority adding device 1 describes the storage battery information BTI acquired from the terminal DV as storage battery information BTI5 when adding priority to the power stored in the storage battery BT based on the electrochemical characteristics of the storage battery BT. The storage battery information BTI5 includes possible output information PO, output power amount information OPE, loss information LS, total charge / discharge amount information TE, calendar information SH, charge / discharge cycle information CY, cost information CT, and unit. Power loss information AL and total CO2 amount information TCO are included. The priority addition apparatus 1 acquires the storage battery information BTI5 from the terminal DV of each supply consumer having the storage battery BT1, the storage battery BT2, and the storage battery BTn. Hereinafter, each piece of information included in the storage battery information BTI5 will be described.
The storage battery information BTI5 includes possible output information PO, output power amount information OPE, loss information LS, total charge / discharge amount information TE, calendar information SH, charge / discharge cycle information CY, and cost information CT. The unit power loss information AL and the total CO2 amount information TCO may include at least one of them.

<About possible output information>
The possible output information PO will be described below with reference to FIG.
FIG. 4 is a graph showing an example of the possible output information PO of the storage battery BT of the third embodiment. The possible output information PO is information indicating the relationship between the discharge power amount of the storage battery BT and the storage battery capacity. In the graph shown in FIG. 4, the vertical axis represents the discharge power amount of the storage battery BT, and the horizontal axis represents the discharge power of the storage battery BT. Moreover, the waveform W1 shown in FIG. 4 shows the relationship between the discharge power and discharge electric energy of a certain storage battery BT. In general, when the storage battery BT performs high output (discharge power), the amount of power that can be output (discharge power amount) decreases. That is, there is an upper limit to the amount of discharge power that can be output at a certain discharge power. Therefore, the waveform W1 is a waveform indicating the upper limit (output possible region) of the discharge power amount that can be output with respect to the discharge power of a certain storage battery BT.

  When the power reference information EDI indicates the possible output information PO, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the possible output information PO. Here, when the priority adding device 1 adds priority to the power discharged from the storage battery BT, the storage battery BT may be designated with the amount of power to be discharged. The priority adding device 1 is power that is discharged from the storage battery BT, and adds priority based on the designated discharge power amount and the discharge power of the storage battery BT. Specifically, the priority adding apparatus 1 adds a high priority to the storage battery BT that is within the output possible area indicated by the output information PO, and the discharge power amount specified and the discharge power output by the storage battery BT are possible. . Thereby, the priority addition apparatus 1 can instruct | indicate discharge preferentially with respect to the storage battery BT which has the electrical characteristic which can discharge the electric power according to designation | designated.

<About output power information>
Hereinafter, the output power amount information OPE will be described with reference to FIG.
FIG. 5 is a graph illustrating an example of the output power amount information OPE of the storage battery BT of the third embodiment. The output power amount information OPE is information indicating the relationship between the dischargeable power amount that is the amount of power that can be discharged by the storage battery BT and the discharge power of the storage battery BT. In the graph shown in FIG. 5, the vertical axis shows the dischargeable power amount of the storage battery BT, and the horizontal axis shows the discharge power of the storage battery BT. Moreover, the waveform W2 shown in FIG. 5 shows the relationship between the discharge power and dischargeable electric energy of a certain storage battery BT (hereinafter referred to as storage battery BT100). The relationship between discharge power and dischargeable electric energy is shown. Here, depending on the electrical characteristics of the storage battery BT, there is a case where the dischargeable power amount for a certain discharge power is different for the storage battery BT. As shown in FIG. 5, when the power stored in the storage battery BT is output as a certain discharge power, the dischargeable power amount (waveform W2) of the storage battery BT100 is greater than the dischargeable power amount (waveform W3) of the storage battery BT101. There are many.

  When the power reference information EDI indicates the output power amount information OPE, the priority adding device 1 adds a priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the output power amount information OPE. Here, when the priority adding device 1 adds priority to the power discharged from the storage battery BT, the storage battery BT may be designated with the amount of power to be discharged. The priority adding device 1 adds priority based on the specified discharge power amount, the dischargeable power amount of the storage battery BT, and the discharge power of the storage battery BT. Specifically, the priority adding device 1 adds a high priority to the storage battery BT that is the output power amount information OPE in which the designated discharge power amount is smaller than the dischargeable power amount. Thereby, the priority addition apparatus 1 can instruct | indicate discharge preferentially with respect to the storage battery BT which has the electrical characteristic which can discharge the electric power according to designation | designated.

<About loss information>
Hereinafter, the loss information LS will be described with reference to FIG.
FIG. 6 is a graph showing an example of the loss information LS of the storage battery BT of the third embodiment. The loss information LS is information indicating the relationship between the power loss accompanying the loss inside the battery of the storage battery BT and the discharge power of the storage battery BT. In the graph shown in FIG. 6, the vertical axis indicates the power loss due to the internal loss of the storage battery BT, and the horizontal axis indicates the discharge power of the storage battery BT. Waveforms W4 to W7 shown in FIG. 6 show the relationship between the discharge power of a certain storage battery BT (hereinafter referred to as storage battery BT102) and the power loss associated with the loss inside the battery. Specifically, the waveform W4 shows the relationship between the discharge power when the discharge power amount of the storage battery BT102 is 100 kWh and the power loss due to the loss inside the battery. A waveform W5 shows the relationship between the discharge power when the discharge power amount of the storage battery BT102 is 200 kWh and the power loss due to the loss inside the battery. A waveform W6 shows a relationship between the discharge power when the discharge power amount of the storage battery BT102 is 300 kWh and the power loss due to the loss inside the battery. A waveform W7 shows a relationship between the discharge power when the discharge power amount of the storage battery BT102 is 400 kWh and the power loss due to the loss inside the battery. In general, the storage battery BT increases the power loss accompanying the loss inside the battery in response to outputting high discharge power. In addition, the storage battery BT increases the power loss accompanying the loss inside the battery in response to outputting a large amount of discharge power.

  When the power reference information EDI indicates the loss information LS, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the loss information LS. Here, when the priority adding device 1 adds priority to the power discharged from the storage battery BT, the storage battery BT may be designated with the amount of power to be discharged. The priority adding device 1 adds priority based on the specified discharge power amount, the discharge power amount of the storage battery BT, the discharge power of the storage battery BT, and the power loss accompanying the loss inside the battery of the storage battery BT. To do. Specifically, when the priority adding device 1 outputs a specified amount of discharge power with a certain amount of discharge power, the priority addition device 1 adds a high priority to the storage battery BT with less power loss due to the loss inside the battery. Thereby, the priority addition apparatus 1 can instruct | indicate discharge preferentially with respect to the storage battery BT which has an electrical characteristic with few power losses.

<About total charge / discharge information>
Hereinafter, the total charge / discharge amount information TE will be described with reference to FIG.
FIG. 7 is a graph showing an example of total charge / discharge amount information TE of the storage battery BT of the third embodiment. The total charge / discharge amount information TE indicates the relationship between the battery capacity of the storage battery BT (hereinafter referred to as battery capacity) and the total amount of power that has been charged and discharged by the storage battery BT so far (hereinafter referred to as total charge / discharge power amount). Information. In the graph shown in FIG. 7, the vertical axis indicates the battery capacity of the storage battery BT, and the horizontal axis indicates the total charge / discharge power amount of the storage battery BT. A waveform W8 shown in FIG. 7 shows the relationship between the total charge / discharge power amount of a certain storage battery BT (hereinafter, storage battery BT103) and the battery capacity. A waveform W9 indicates the relationship between the total charge / discharge power amount of a certain storage battery BT (hereinafter referred to as storage battery BT104) and the battery capacity. In general, the battery capacity of the storage battery BT decreases in proportion to the total charge / discharge power amount according to repetition of charge / discharge. In addition, when the storage battery BT reaches a certain power amount value corresponding to the electrochemical characteristics of the storage battery BT, it is difficult to appropriately charge and discharge. The storage battery BT that is difficult to charge and discharge appropriately is, for example, a storage battery BT in which the battery capacity of the storage battery BT is about 50% of the initial production.
As shown in FIG. 7, it is difficult for the storage battery BT103 to appropriately charge and discharge when the total charge / discharge power amount reaches the power value E4. In addition, it is difficult for the storage battery BT104 to appropriately charge and discharge when the total charge / discharge power amount reaches the power value E3. In this example, the electric energy value E4 and the electric energy value E3 indicate larger values.

  When the power reference information EDI indicates the total charge / discharge amount information TE, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the total charge / discharge amount information TE. To do. Here, when the priority adding device 1 adds priority to the power charged or discharged by the storage battery BT, the storage battery BT may be designated with the amount of power to be charged / discharged. The priority adding device 1 has a high priority for the storage battery BT that can be charged / discharged with the specified power, with little reduction in battery capacity due to charging / discharging the specified charge power amount or discharge power amount. Is added. Moreover, the priority addition apparatus 1 adds a high priority to the storage battery BT that does not reach the amount of power that makes it difficult to charge / discharge properly when charging / discharging the specified amount of charging power or discharging power. . Thereby, the priority addition apparatus 1 can instruct | indicate charge / discharge preferentially with respect to the storage battery BT which is sufficient battery capacity. Moreover, the priority addition apparatus 1 can instruct | indicate charge / discharge with priority with respect to the storage battery BT which can charge / discharge appropriately.

<Calendar information>
Hereinafter, the calendar information SH will be described with reference to FIG.
FIG. 8 is a graph showing an example of calendar information SH of the storage battery BT of the third embodiment. The calendar information SH is information indicating the relationship between the battery capacity of the storage battery BT and the number of years of use that is the number of years that the storage battery BT has been used so far. In the graph shown in FIG. 8, the vertical axis indicates the battery capacity of the storage battery BT, and the horizontal axis indicates the years of use of the storage battery BT. A waveform W10 shown in FIG. 8 shows the relationship between the years of use of a certain storage battery BT (hereinafter referred to as storage battery BT105) and the battery capacity. A waveform W11 indicates the relationship between the years of use of a certain storage battery BT (hereinafter referred to as storage battery BT106) and the battery capacity. Generally, the capacity (battery capacity) of the storage battery BT decreases in proportion to the age of use of the storage battery BT. In addition, the storage battery BT is difficult to charge and discharge appropriately when it reaches a certain service life according to the electrochemical characteristics of the storage battery BT. As shown in FIG. 8, it is difficult for the storage battery BT105 to appropriately charge and discharge when the years of use reach the years Y1. Moreover, it is difficult for the storage battery BT106 to appropriately charge and discharge when the number of years of use reaches the number of years Y2. In this example, the number of years Y1 and the number of years Y2 indicate that the number of years Y2 is longer.

  In the above description, the calendar information SH has been described for the case where the battery capacity of the storage battery BT is information indicating the relationship between the storage battery BT and the years of use that have been used so far. However, the present invention is not limited thereto. . The calendar information SH may be information indicating the relationship between the battery capacity of the storage battery BT and other time units instead of the years of use. The other time unit may be, for example, the number of days or the number of hours.

  When the power reference information EDI indicates the calendar information SH, the priority adding device 1 adds a priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the calendar information SH. The priority adding device 1 adds a high priority to the storage battery BT having a small service life. Thereby, the priority addition apparatus 1 can instruct | indicate charge / discharge preferentially with respect to the storage battery BT which is sufficient battery capacity.

<About charge / discharge cycle information>
Hereinafter, the charge / discharge cycle information CY will be described with reference to FIG.
FIG. 9 is a graph showing an example of charge / discharge cycle information CY of the storage battery BT of the third embodiment. The charge / discharge cycle information CY is information indicating the relationship between the battery capacity of the storage battery BT and the charge / discharge cycle, which is the number of times the storage battery BT has been charged and discharged so far. In the graph shown in FIG. 9, the vertical axis represents the battery capacity of the storage battery BT, and the horizontal axis represents the charge / discharge cycle of the storage battery BT. Specifically, the charge / discharge cycle is a value obtained by counting a case where discharging is performed after charging or a case where charging is performed after discharging. A waveform W12 shown in FIG. 9 shows the relationship between the charge / discharge cycle of a certain storage battery BT (hereinafter, storage battery BT107) and the battery capacity. Waveform W13 shows the relation between the charge / discharge cycle of a certain storage battery BT (hereinafter referred to as storage battery BT108) and the battery capacity. Waveform W14 shows the relation between the charge / discharge cycle of a certain storage battery BT (hereinafter referred to as storage battery BT109) and the battery capacity. In general, the battery capacity of the storage battery BT decreases in proportion to the charge / discharge cycle of the storage battery BT. In addition, when the storage battery BT reaches a certain charge / discharge cycle corresponding to the electrochemical characteristics of the storage battery BT, it is difficult to charge / discharge appropriately. As shown in FIG. 9, it is difficult for the storage battery BT107 to appropriately charge and discharge when the charge / discharge cycle reaches the cycle number C1. In addition, when the charge / discharge cycle reaches the number of cycles C2, it is difficult for the storage battery BT108 to appropriately charge / discharge. In addition, when the storage battery BT109 reaches the number of cycles C3, it is difficult to appropriately charge and discharge. In this example, the cycle number C2 and the cycle number C2 indicate larger values for the cycle number C2. Further, the cycle number C3 and the cycle number C3 indicate larger values of the cycle number C3.

  When the power reference information EDI indicates the charge / discharge cycle information CY, the priority adding device 1 adds priority to the power stored in the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the charge / discharge cycle information CY. The priority adding device 1 adds a high priority to the storage battery BT with few charge / discharge cycles. Thereby, the priority addition apparatus 1 can instruct | indicate charge / discharge preferentially with respect to the storage battery BT which is sufficient battery capacity.

<About cost information>
Hereinafter, the cost information CT will be described with reference to FIG.
FIG. 10 is a graph showing an example of cost information CT of the storage battery BT of the third embodiment. The cost information CT includes the equipment cost (hereinafter referred to as cost) of the storage battery BT per unit power (for example, 1 kW) discharged by the storage battery BT and the time during which the power stored in the storage battery BT can be discharged (hereinafter referred to as possible discharge). Time). In the graph shown in FIG. 10, the vertical axis indicates the cost of the storage battery BT, and the horizontal axis indicates the possible discharge time of the storage battery BT. A waveform W15 shown in FIG. 10 shows the relationship between the possible discharge time of a certain storage battery BT (hereinafter, storage battery BT110) and the cost. A waveform W16 shows the relationship between the possible discharge time of the storage battery BT of a different type from the waveform W15 (hereinafter referred to as storage battery BT111) and the cost. Here, the storage battery BT may have different installation costs for the storage battery BT depending on the chemical substance incorporated in the storage battery BT. The storage battery BT includes a storage battery BT that efficiently discharges for a short time (in this example, storage battery BT110) and a storage battery BT that efficiently discharges for a long time according to the electrochemical characteristics of the storage battery BT (this example). Then, there is storage battery BT111). As the waveform W15 indicates, the storage battery BT110 has a lower cost as the possible discharge time is shorter, and a higher cost as the possible discharge time is longer. As shown by the waveform W16, the storage battery BT111 has less cost variation due to the possible discharge time than the storage battery BT110. The storage battery BT111 has a higher cost for discharging until reaching a certain possible discharge time (hereinafter, discharge time T1) as compared to the storage battery BT110. Moreover, when storage battery BT111 has the possible discharge time longer than discharge time T1, compared with storage battery BT110, the cost concerning discharge is low.

  When the power reference information EDI indicates the cost information CT, the priority adding device 1 adds priority to the power discharged from the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the cost information CT. Here, when the priority adding device 1 adds priority to the electric power discharged from the storage battery BT, the storage battery BT may be specified for the discharge time. When the specified discharge time is shorter than the discharge time T1, the priority adding device 1 adds a high priority to the storage battery BT that efficiently discharges for a short time (in this example, the storage battery BT110). In addition, when the specified discharge time is longer than the discharge time T1, the priority adding device 1 adds a high priority to the storage battery BT that efficiently discharges for a long time (in this example, the storage battery BT111). Thereby, the priority addition apparatus 1 can instruct | indicate charge / discharge preferentially with respect to storage battery BT with low cost according to the time of the designated discharge. Therefore, the priority addition apparatus 1 can preferentially instruct the discharge to the storage battery BT with a low facility cost of the storage battery BT per unit power amount discharged by the storage battery BT.

<About unit power loss information>
Hereinafter, the unit power loss information AL will be described with reference to FIG.
FIG. 11 is a graph showing an example of the unit power loss information AL of the storage battery BT of the third embodiment. The unit power loss information AL includes the power loss associated with the internal loss of the storage battery BT when the storage battery BT outputs a predetermined amount of power, and the storage battery BT when the storage battery BT outputs a predetermined amount of power. It is the information which shows the relationship with the discharge electric power. In the graph shown in FIG. 11, the vertical axis indicates the power loss accompanying the loss inside the battery of the storage battery BT when the storage battery BT outputs a certain amount of power. Further, the horizontal axis indicates the discharge power of the storage battery BT when the storage battery BT outputs a certain amount of power.
A waveform W17 shown in FIG. 11 shows the relationship between the discharge power of a certain storage battery BT (hereinafter referred to as storage battery BT112) and the power loss associated with the loss inside the battery. A waveform W18 shows the relationship between the discharge power of a different type of storage battery BT (hereinafter referred to as storage battery BT113) and the power loss associated with the loss inside the battery. In general, even when the storage battery BT outputs a certain amount of discharge power with a certain discharge power, the power loss accompanying the loss inside the battery may differ depending on the chemical substance built in the storage battery BT.
As shown by the waveform W17 and the waveform W18, when a certain amount of discharge power is output by a certain discharge power, the storage battery BT112 and the storage battery BT113 have more power loss due to the loss inside the battery.

  When the power reference information EDI indicates the unit power loss information AL, the priority adding device 1 adds priority to the power discharged from the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the unit power loss information AL. The priority adding device 1 adds a high priority to the storage battery BT having a small power loss due to a loss inside the battery when a certain amount of discharged power is output by a certain discharge power. Thereby, the priority addition apparatus 1 can preferentially instruct charge / discharge with respect to the storage battery BT with little power loss accompanying the loss inside a battery, and can reduce the said power loss.

<About total CO2 amount information>
Hereinafter, the total CO2 amount information TCO will be described with reference to FIG.
FIG. 12 is a graph illustrating an example of the total CO2 amount information TCO of the storage battery BT of the third embodiment. The total CO2 amount information TCO is information indicating the relationship between the amount of carbon dioxide discharged as the storage battery BT is charged and discharged and the number of years of use, which is the number of years that the storage battery BT has been used so far. In the graph shown in FIG. 12, the vertical axis represents the carbon dioxide emission amount of the storage battery BT. Moreover, a horizontal axis shows the years of use of storage battery BT.
A waveform W19 shown in FIG. 12 indicates the relationship between the number of years of use of a certain storage battery BT (hereinafter referred to as storage battery BT114) and carbon dioxide emissions. Moreover, the waveform W20 shows the relationship between the years of use of a certain storage battery BT (hereinafter referred to as storage battery BT115) and the carbon dioxide emission amount. In general, the storage battery BT may have a different carbon dioxide emission amount as the storage battery BT is charged and discharged according to a chemical substance built in the storage battery BT. In addition, the storage battery BT increases in carbon dioxide emissions as the years of use elapse.
As shown by the waveform W19 and the waveform W20, the storage battery BT114 and the storage battery BT115 have different carbon dioxide emissions in a certain service life. In this example, the storage battery BT114 and the storage battery BT115 have a large amount of carbon dioxide emissions in the years of use in which the storage battery BT114 is present.

  When the power reference information EDI indicates the total CO2 amount information TCO, the priority adding device 1 adds priority to the power discharged from the storage battery BT1, the storage battery BT2, and the storage battery BTn based on the total CO2 amount information TCO. The priority adding device 1 adds a high priority to the storage battery BT that emits less carbon dioxide in a certain service life. Thereby, the priority addition apparatus 1 can instruct | indicate charge / discharge preferentially with respect to storage battery BT with few carbon dioxide discharge | emission amount, and can instruct | indicate use of the electric power in consideration of the environment.

  As described above, in the priority adding device 1, the storage battery BT can be charged with the storage battery information acquisition unit 110 that acquires the storage battery information BTI related to the storage battery BT of the consumer (in this example, the supply consumer). Power information acquisition unit 120 that acquires power information EI indicating at least one of the power that can be discharged and the power that can be discharged, storage battery information BTI acquired by the storage battery information acquisition unit 110, and power information acquisition unit A priority adding unit 140 for adding a priority to the power charged or discharged by the storage battery BT based on the power information EI acquired by the power supply 120 and the power reference information EDI indicating the reference of the power charged or discharged by the storage battery BT; . Thereby, the priority addition apparatus 1 can accelerate | stimulate charging / discharging of the storage battery BT based on the added priority. Therefore, the priority addition apparatus 1 can control the type of power discharged from the storage battery by the power supply company by the power supply company defining the power reference information EDI.

  In addition, although the above demonstrated the case where the electric power information EI was the information which shows the electric power which can be charged / discharged to the electric power grid EPS for every electric power supply equipment ESS, it is not restricted to this. The power information EI may be information indicating prediction of power that can be charged and discharged to the power system EPS for each power supply facility ESS.

The priority addition apparatus 1 of this embodiment outputs the instruction information DR based on the power information EI that indicates the prediction of power that can be charged and discharged to the power system EPS for each power supply facility ESS.
By referring to the instruction information DR output by the priority adding device 1, the collection company AG can plan the power that the storage battery BT can supply to the power system EPS. Thereby, the priority addition apparatus 1 can instruct supply consumers to charge and discharge the storage battery BT so that the power system EPS can supply stable power in the future.

In the above description, the case where the power of the power system EPS is suppressed from being consumed by discharging the storage battery BT when the power of the power system EPS is insufficient has been described, but the present invention is not limited thereto. The storage battery BT may be configured to supply power stored in the storage battery BT to the power system EPS when the power of the power system EPS is insufficient. In this case, the priority adding device 1 is the power discharged from the storage battery BT based on the storage battery information BTI (in this example, the storage battery information BTI1 to the storage battery information BTI5), and has priority over the power supplied to the power system EPS. Add a degree. Moreover, the priority addition apparatus 1 produces | generates the instruction information DR based on the added priority, and instruct | indicates discharge to the storage battery BT.
Thereby, the priority addition apparatus 1 can maintain the electric power of the electric power system EPS appropriately by discharging the storage battery BT.

  Each unit included in the priority adding device 1 in each of the above embodiments may be realized by dedicated hardware, or may be realized by a memory and a microprocessor.

  Each unit included in the priority adding device 1 is configured by a memory and a CPU (central processing unit), and a program for realizing the function of each unit included in the priority adding device 1 is loaded into the memory and executed. You may implement | achieve the function.

  Further, a program for realizing the function of each unit included in the priority adding device 1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. May be performed. Here, the “computer system” includes an OS and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and appropriate modifications may be made without departing from the spirit of the present invention. it can. You may combine the structure as described in each embodiment mentioned above.

DESCRIPTION OF SYMBOLS 1 ... Priority addition apparatus, 100 ... Control part, 110 ... Storage battery information acquisition part, 120 ... Power information acquisition part, 130 ... Power reference information acquisition part, 140 ... Priority addition part, 150 ... Output part, AG ... Collection business BT, BT1, BT2, BT100, BT101, BT102, BT103, BT104, BT105, BT106, BT107, BT108, BT109, BT110, BT111, BT112, BT113, BT114, BT115, BTn ... Battery, BTI, BTI1, BT1, BTI3, BTI4, BTI5 ... Storage battery information, AL ... Unit power loss information, CE ... Charge / discharge efficiency information, CF ... Charge efficiency information, CO ... CO2 information, TCO ... Total CO2 amount information, CP ... Contract unit price information, CT ... Cost information, CY ... charge / discharge cycle information, DD ... deterioration information, FP Value prediction information, LS ... Loss information, OPE ... Output power information, PO ... Possible output information, RB ... Reliability information, SH ... Calendar information, SP ... Residual value information, TP ... Temperature information, TE ... Total charge / discharge amount Information, VLI ... Charge price information, VLO ... Discharge price information, EI ... Power information, DR ... Instruction information, ED ... Power standard information supply device, EDI ... Power standard information, EPS ... Power system, U ... Customer

Claims (4)

A storage battery information acquisition unit for acquiring storage battery information related to a storage battery possessed by a consumer;
A power information acquisition unit that acquires power information indicating at least one of power that can be charged by the storage battery and power that can be discharged;
The storage battery is charged based on the storage battery information acquired by the storage battery information acquisition unit, the power information acquired by the power information acquisition unit, and power reference information indicating a reference of power that the storage battery charges or discharges. Or a priority adding unit for adding priority to the electric power to be discharged;
A priority adding device. The power standard information is
At least one of price information indicating the price of power stored in the storage battery, efficiency when the storage battery discharges power, efficiency when charging, and efficiency when discharging charged power. 2. The apparatus includes at least one of efficiency information, deterioration information indicating a degree of deterioration of the storage battery, and carbon dioxide information indicating an amount of carbon dioxide discharged when the storage battery stores electric power. The priority adding device described in 1. The priority addition apparatus according to claim 1, wherein the power information is information indicating prediction of power that can be charged and discharged by the storage battery. On the computer,
A storage battery information acquisition step for acquiring storage battery information related to a storage battery possessed by a consumer;
A power information acquisition step of acquiring power information indicating at least one of the power that can be charged by the storage battery and the power that can be discharged;
The storage battery is charged based on the storage battery information acquired by the storage battery information acquisition step, the power information acquired by the power information acquisition step, and power reference information indicating a reference of power that the storage battery charges or discharges. Or a priority adding step for adding priority to the electric power to be discharged;
A priority addition program for executing.

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