JP2015082273A - Aggregator service system, service reminder device, and energy management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aggregator service system that obtains all maintenance information of a contract vehicle, prevents supply and demand performance from being reduced by maintenance of an electric vehicle, stabilizes power supply and demand performance of an aggregator, and can contribute to smoothing power consumption of an electric power network.SOLUTION: A HEMS 210 includes: an electric power adjustment unit 211 that communicates with a charge/discharge device 220 and commands the charge/discharge of a battery 240 of an electric vehicle 230; a user information transmission part 212 for transmitting user information to a contract aggregator 1 of a user 2 through an information network 5; and a maintenance information input part 213 with which the user inputs a maintenance schedule of the electric vehicle 230 as maintenance information.

Description

  The present invention relates to an aggregator service system that provides an aggregator service for buying and selling electric power of a plurality of consumers having an electric vehicle at once, a service reminder device mounted on an electric vehicle that constitutes the aggregator service system, and energy installed in the customer Management system (HEMS: Home Energy Management System)

  In recent years, the development of a next-generation power network called “smart grid” that incorporates automatic control of power supply and demand in the power network has attracted attention. In the smart grid, the power flow in the power network is controlled not only from the supply side but also from the demand side, thereby optimizing (equalizing) power demand and supply (supply / demand).

  For example, electric vehicles owned by each household (for example, electric vehicles (EVs) and plug-in hybrid vehicles (PHVs)) batteries (storage batteries) can be smoothed by reducing the peak power demand. It can be used as a buffer for planning.

  That is, the power demand peak is reduced by using the power of the battery of the electric vehicle charged in the time zone when the power demand is low at the time of peak power demand. In general, since electricity charges are set at a low price during periods of low power demand such as late at night, the electricity charges of each household can be saved. The smart grid automatically performs such power supply and demand control.

  In the power grid managed by the smart grid, it is assumed that not only charging of the battery of the vehicle (power supply from the house to the vehicle) but also discharging of the battery (power supply from the vehicle to the house) is actively performed. This power flow is managed by an EMS (Energy Management System) installed in each consumer. In the present application, equipment deployed on the consumer side is referred to as “customer”.

  EMS includes power generation equipment such as PV (Photo voltaic power generation) devices, large power load equipment such as electric water heaters and air conditioners (air conditioners), and power storage equipment such as batteries for electric vehicles. Under control, the power demand is smoothed by controlling them so that power supply and demand is balanced, and control is performed so that less power is purchased from the power company.

  Note that EMS deployed to consumers depends on the target, HEMS for ordinary households, BEMS (Building Energy Management System) for buildings such as office buildings and department stores, and FEMS (Factory Energy Management System) for factories. ).

  In recent years, an aggregator service that issues a supply and demand command from the outside to the EMS of a plurality of consumers having an electric vehicle has been studied. In the present application, the equipment of the service provider that provides the aggregator service is referred to as “aggregator”, and the provided service is referred to as “aggregator service”. In the aggregator service, the aggregator controls the power supply and demand of a plurality of small consumers to contract from outside, and the power generated and consumed by the plurality of small consumers is collected and purchased and sold in the power market.

  In Japan, these electric power transactions are carried out at the electric power exchange, and the aggregator participates in the electric power transactions as a large-volume consumer that gathers together the supply and demand of small-sized consumers. As a result, small consumers can purchase power from the power market through the aggregator and vice versa, purchase cheaper power from the power company, or power at a higher price than the power company's bulk purchase. Can be sold in the electricity market.

  On the other hand, an aggregator can obtain a contract fee as an incentive to provide an aggregator service from a small consumer, or can obtain a profit margin of electricity purchase using a power storage facility owned by the small consumer.

  Especially for an aggregator, a chargeable / dischargeable electric vehicle owned by a consumer is an important power storage facility. Electric vehicles owned by general household consumers are used for commuting, attending school, shopping, etc., but the time zone used for driving is limited, and many times when it is not used for driving are used by users It is not a surplus facility for consumers.

  The aggregator uses, as its own power storage buffer, a time zone in which this electric vehicle is a surplus facility that is not used by the user. For example, an aggregator purchases power from the power market during a time when the electric vehicle is not used and when the power is cheap in the power market, that is, when the power supply is excessive, and the aggregator contracts Charge the vehicle. Then, during the time when the power is high in the power market, that is, the time when power supply is tight, the electric vehicle of the consumer that has been charged is discharged and supplied to the commercial power network.

  At this time, if the amount of charge and the amount of discharge to the electric vehicle are the same, the remaining battery level of the electric vehicle does not change and no power loss is given to the user. The difference between the electricity sales fees is the profit for the aggregator.

  In other words, the aggregator does not prepare a plurality of generators and large-scale power plants necessary for power generation, and performs the same control on the electric vehicles of a large number of customers with whom it has contracted, In particular, the aggregator itself participates in the power market as a large-scale consumer who has a large-scale power storage buffer, and also makes a large amount of power transactions using this large-scale power storage buffer, thereby gaining profits from power trading. And greatly contribute to power smoothing of the power network.

  However, it is important for the aggregator to know in advance the user's plan for using the electric vehicle when planning electric power trading using the electric vehicle of the contracting customer as a buffer for storing power.

  If the aggregator is planning to purchase electricity from the electricity market in advance and charge it to an electric vehicle and then discharge it from the electric vehicle a few hours later to sell electricity, within the planned time zone If the user goes out and consumes electric power by traveling, it may be impossible to secure the amount of electric power necessary for the timing of power sale. In this case, the aggregator can no longer supply power to other customers of the supply destination, and it becomes necessary to reimburse the power exchange that manages the power market by so-called “non-delivery”.

  In addition, if the aggregator discharges the electric vehicle before the user plans to go out, the user may not be able to secure the necessary power when going out, and may be unable to run when the user travels.

  In order to avoid this situation, the aggregator obtains information such as the user's period of use of the electric vehicle and the remaining battery level, and the aggregator performs charging and discharging during periods when the aggregator cannot be used for charging and discharging power from the outside. Patent Document 1 discloses a method for preventing a default in a contract in the power market by grasping a good power amount in advance and planning a trading amount in the power market in consideration of the information. Yes.

  In addition to the use of the user's electric vehicle scheduled in advance as described above, the aggregator is used in case the user suddenly uses the electric vehicle or when the electric vehicle cannot be used from the aggregator side for some reason. For the charge / discharge capacity of an electric vehicle that can be charged / discharged at the scheduled time of buying and selling, secure a number of spare vehicles that are not used as power storage buffers so that they will not default, and the number of electric vehicles with a margin Is making a power trading plan.

  However, the reason why the aggregator cannot use the electric vehicle for charging / discharging is to use the electric vehicle for a certain period in order to perform maintenance of the electric vehicle, for example, in addition to the case where the electric vehicle is used for the movement of the user as described above. There are cases in which the vehicle is left at a dealer or an automobile repair shop and the electric vehicle is not present in the customer.

  Some vehicle maintenance is simply set based on the operating time of the electric vehicle, the number of years since purchase and production, and the usage status of the user, such as mileage and parts consumption rate, Some are set according to the environment. Also, the parts used vary depending on the type and model of the electric vehicle, and the recommended replacement period and replacement standard for parts vary widely depending on the individual electric vehicle. Therefore, it is difficult to estimate the maintenance timing of the contracted electric vehicle by the aggregator alone, and the unusable period of the electric vehicle due to the maintenance can only be treated as an uncertain factor in the prior plan.

  Here, as disclosed in Patent Document 2, a service for performing a reminder service that is mounted on an electric vehicle, determines whether or not the electric vehicle needs to be maintained based on a travel distance, a travel time, and the like, and notifies the user of the scheduled maintenance date. If a reminder device is known and a user who has been notified of the scheduled maintenance date from the service reminder device of his / her vehicle contacts the aggregator who has contracted the information by telephone or e-mail, the aggregator maintains the contracted vehicle. Although the timing can be known, if the user neglects, the aggregator cannot know the maintenance timing.

  Further, the period required for maintenance of these electric vehicles may be necessary for a relatively long period of time depending on the failure location, the stock status of replacement parts, and the complexity of replacement work. At this time, the customer will leave the electric vehicle at a store or an automobile repair shop for a long period of time, and the user will not be able to use the electric vehicle for a long period of time, and the aggregator will use the electric vehicle as a power buffer for the same period. There was a risk of falling into a long-term decline in supply and demand capacity.

  In addition, when an aggregator makes a long-term supply and demand plan, the power supply and demand capacity of the aggregator should not be fluctuated significantly depending on the date and time. It is no longer necessary to make a plan and it is easy to make a long-term plan.

  However, an aggregator who cannot grasp the above-mentioned maintenance needs to make a power trading plan with a margin based on the low supply and demand capacity, considering the possibility that many vehicles will always be absent due to maintenance. In fact, even if there is a surplus in the supply and demand capacity, it has not been reflected in the prior plan and the prior power trading, so there may be many vehicles that are not used for charging and discharging.

  Even if the maintenance can be grasped, if there is a bias in these maintenances, the power supply / demand capacity of the aggregator differs greatly between the day when there is no maintenance and the day when there is maintenance of multiple units. It is necessary to make a plan according to the fluctuations in the supply and demand capacity mentioned above, making the planning complicated, and on the day when the power supply and demand capacity of the aggregator is extremely low, In some cases, it may not be possible to contribute to smooth power consumption.

JP 2003-259696 A JP 2010-126061 A

  The present invention has been made in order to solve the above-described problems, and it is necessary to grasp the maintenance information of the contract vehicle without fail, so that the supply and demand capacity is not lowered due to the maintenance of the electric vehicle. An object of the present invention is to provide an aggregator service system capable of making power supply and demand constant and contributing to smooth power consumption of a power network.

  The aggregator service system according to the present invention includes an electric vehicle that uses power charged in a battery as a drive source, an energy management system that instructs charging / discharging of the battery, and an instruction for charging / discharging from the energy management system. An aggregator comprising: a consumer comprising a charging / discharging device for controlling charging / discharging of the battery of the electric vehicle, and an aggregator for instructing the energy management system to supply and demand electric power to the battery from outside A service system, wherein the energy management system includes a customer information transmission unit that transmits customer information including at least maintenance information of the electric vehicle to the aggregator, and an instruction for supply and demand of the power from the aggregator And a power adjustment unit that controls the charging / discharging device to charge and discharge the battery, and a maintenance information input unit that inputs the maintenance information, and the aggregator receives the demand from the energy management system. A trading plan formulation unit that receives house information and formulates a power trading plan using the consumer information; and a power trading unit that sets a power supply and demand plan by performing a power transaction in the power market using the power trading plan; A charge / discharge command unit that gives a charge / discharge command for the battery to the energy management system based on the power supply and demand plan, and the maintenance information includes at least information on a maintenance period of the electric vehicle, The sales plan formulation unit is based on the maintenance information included in the customer information. The maintenance period, to develop the power trading plan so that it does not buy and sell the power of the battery of the electric vehicle.

  According to the present invention, it is possible to grasp the maintenance information of the contracted vehicle without fail, so that the supply / demand capability of the electric vehicle is not reduced, and the power supply / demand capability of the aggregator is made constant to smooth the power consumption of the power network. It is possible to provide an aggregator service system that can contribute to the realization.

It is a figure explaining the whole structure of the aggregator service system which concerns on this invention. It is the block diagram which showed the structure of the aggregator service system of Embodiment 1 which concerns on this invention. It is the block diagram which showed the structure of the aggregator service system of Embodiment 2 which concerns on this invention. It is the block diagram which showed the structure of the aggregator service system of Embodiment 3 which concerns on this invention.

<Introduction>
First, the overall configuration of the aggregator service system according to the present invention will be described with reference to FIG. As shown in FIG. 1, an aggregator service system according to the present invention includes an aggregator 1, a plurality of customers 2 contracted with the aggregator 1, a power exchange 3 where the aggregator 1 performs power trading, and participates in power trading. It is provided between a plurality of power plants (power sending side) 4a and a plurality of large consumers (power receiving side) 4b which are power trading partners with the aggregator 1.

  Here, the exchange of information between the aggregator 1 and the plurality of consumers 2 is performed using the information network 5, and the power supply and demand between the plurality of consumers 2 and the power plant 4 a and the large-volume consumer 4 b is electric power. This is performed using a power network 6 owned by a company (not shown).

  The type of the information network 5 shown in FIG. 1 is not limited. For example, an Internet line using an optical fiber network or a telephone line may be used, or a dedicated network constructed by short-range wireless or the like may be used. It may be used.

<Embodiment 1>
Next, the aggregator service system according to the first embodiment of the present invention will be described with reference to FIG. FIG. 2 is a block diagram showing the function and input / output information of each component in the first embodiment compared to the overall configuration diagram of the aggregator service system in FIG. In FIG. 2, only the configuration essential for the description of the present invention is disclosed, and the configuration that is not related to the present invention is omitted.

<Composition of customers>
First, the configuration of the customer 2 will be described. The customer 2 includes at least a HEMS 210, a charge / discharge device 220, and an electric vehicle 230 having a battery 240 therein.

  The battery 240 included in the electric vehicle 230 is a battery for accumulating electric power used for traveling. The electric vehicle 230 is connected to the charging / discharging device 220 during times when the electric vehicle 230 is not used for traveling, and is charged as necessary. Discharged. Although not shown, the electric vehicle 230 includes a motor, an inverter, a steering device, a braking device, and the like necessary for traveling in addition to the battery 240. These configurations are not shown because they are not related to the present invention, but are indispensable for running the electric vehicle 230.

  In addition, power transfer between the electric vehicle 230 and the charging / discharging device 220 may be performed by so-called contact power feeding in which the electric vehicle 230 and the charging / discharging device 220 are directly connected by a cable, or directly by a cable. You may perform by non-contact electric power feeding which is not connected.

  The charging / discharging device 220 is interposed between the battery 240 of the electric vehicle 230 and the power network 6, manages charging / discharging of the battery 240 in accordance with the charging / discharging instruction from the HEMS 210, and the battery 240 of the electric vehicle 230 and the power network 6. Power conversion between and.

  That is, normally, the battery 240 in the electric vehicle 230 is stored with a direct current, and the power network 6 is transmitted with an alternating current. Therefore, power transfer between the battery 240 of the electric vehicle 230 and the power network 6 requires power conversion from DC power to AC power and from AC power to DC power. This is a charging / discharging device 220.

  In FIG. 2, the charging / discharging device 220 is illustrated as being provided outside the electric vehicle 230, but the charging / discharging device 220 may be mounted on the electric vehicle 230. Actually, many electric vehicles currently on the market have a built-in charging device for charging the battery 240 by converting AC power into DC power, that is, a so-called in-vehicle charger.

  Moreover, when using non-contact electric power feeding for the connection of the electric vehicle 230 and the charging / discharging device 220, not only the power conversion described above, but also the electric power conversion device for non-contact electric power feeding is provided to both the electric vehicle 230 and the charging / discharging device 220. Necessary.

  The HEMS 210 has a communication function (not shown) with an air conditioner, an electric water heater, a solar power generation device (not shown) installed in the consumer 2, and is used in an air conditioner, an electric water heater, a solar power generation, etc. By notifying the user of the power usage status or power generation status, and instructing consumption or power generation suppression to devices that consume or generate large amounts of power such as air conditioners, electric water heaters, and solar power generation. The power consumption of the entire consumer 2 is mainly smoothed.

  In addition to these functions, the HEMS 210 of the first embodiment communicates with the charging / discharging device 220, and the power adjustment unit 211 that instructs charging / discharging of the battery 240 of the electric vehicle 230, and the aggregator with which the customer 2 contracts 1, a customer information transmission unit 212 that transmits customer information through the information network 5, and a maintenance information input unit 213 that a user inputs maintenance schedule (maintenance time, period, etc.) of the electric vehicle 230 as maintenance information. And. The period can be input not only in units of days but also in units of half days or hours.

  The charging / discharging instruction performed by the power adjustment unit 211 is used for running on the battery 240 of the electric vehicle 230 in order to respond to charging / discharging determined by the HEMS 210 for the purpose of smoothing power consumption of the entire consumer 2 and going out of the user. And charging for the purpose of storing the electric power.

  Moreover, since the consumer 2 has contracted with the aggregator 1, the charge / discharge based on the command of the external aggregator 1 is also included. Charging / discharging based on the command of the external aggregator 1 is executed by the power adjustment unit 211 communicating with the charging / discharging device 220 and the charging / discharging device 220 controlling the battery 240.

  The HEMS 210 is connected to the customer 2 so that the charging / discharging does not cause a disadvantage for the user who uses the electric vehicle 230, and a problem does not occur in each device in the customer 2. Control is performed so that no problem occurs in the network 6.

  In the HEMS 210, the customer information transmission unit 212 transmits customer information S 001 through the information network 5 to the aggregator 1 with which the customer 2 contracts.

  The customer information S001 includes at least charge / discharge capacity, remaining battery capacity, total battery capacity, and the like as information on the electric vehicle (EV information).

  The charge / discharge capability is the power conversion capability of the charge / discharge device 220, the remaining battery capacity and the total battery capacity are the remaining amount and capacity of the battery 240 of the electric vehicle 230, and the HEMS 210 obtains such information through the charge / discharge device 220. .

  Furthermore, when there is a use plan of the electric vehicle 230 by a user, the use plan of an electric vehicle will also be contained in the information (EV information) of an electric vehicle. The input method of the scheduled use of the electric vehicle is not limited because it has little relation to the present invention. For example, a portable terminal owned by the user or a terminal installed in the consumer 2 Access the HEMS 210 via a network from a device (personal computer: PC) or a TV with a communication function, and enter, change, delete, etc. multiple use schedules within a range of days to months. It is possible to do it.

  Further, when the network cannot be used, the information may be input using an information input unit such as a touch panel provided in the HEMS 210 itself. Also, by default, the use schedule of the electric vehicle 230 is included in the information (EV information) of the electric vehicle as daily, and the case where the user does not use the electric vehicle 230 is transmitted as unused or undecided on a daily or hourly basis. You may do it.

  In addition, the customer information transmission unit 212 transmits the customer information S001 including maintenance information of the electric vehicle 230. In the first embodiment, the maintenance information is created by the user himself / herself in the first embodiment and is input to the HEMS 210 using the maintenance information input unit 213.

  The maintenance schedule of the electric vehicle 230 may be determined by the user himself / herself judging the state of the electric vehicle 230 and further determining whether or not the maintenance is necessary. It is also possible to determine whether or not maintenance is necessary with reference to the above information and input it to the maintenance information input unit 213. However, since it is usually difficult for the user to determine whether or not the electric vehicle 230 needs to be maintained, it is likely that the determination is often made with reference to the maintenance guide from the latter dealer or an automobile repair shop.

  Note that the method for inputting maintenance information to the maintenance information input unit 213 is not limited because it has a small relationship with the present invention, but the same method as the method for inputting the scheduled use of the electric vehicle described above is conceivable.

<Configuration of aggregator>
Next, the configuration of the aggregator 1 will be described. The aggregator 1 according to the first embodiment is based on at least a customer information receiving unit 101 that receives customer information S001 from the HEMS 210 through the information network 5 and a plurality of customer information S001 received by the customer information receiving unit 101. The power trading plan formulation unit 102 that creates the power trading plan S002, the power trading unit 103 that performs power trading in the power exchange 3 based on the power trading plan S002, and the power that is the result of the power trading performed by the power trading unit 103 The charging / discharging instruction | command part 104 which transmits charging / discharging instruction | command S005 to HEMS210 through the information network 5 based on the supply-and-demand plan S003 is provided.

  Among these configurations, the customer information receiving unit 101 and the charge / discharge command unit 104 perform communication management through the information network 5.

  The power trading plan S002 includes, for example, a plan for selling what power (W) from what time of the month, what date, and the charge / discharge command value to the consumer. When a transaction according to the power trading plan S002 is established, the plan is the same as the power trading plan S002, and the charge / discharge command S005 includes a charge / discharge command value.

  The customer information receiving unit 101 receives customer information S001 transmitted from a plurality of customers 2 contracting with the aggregator 1 and records it in a database (not shown).

  In addition, the charge / discharge command unit 104 transmits a charge / discharge command S005 instructing the HEMS 210 of the customer 2 to charge / discharge the electric vehicle 230 at an appropriate timing based on the power supply / demand plan S003 determined by the power transaction unit 103. . The electric power supplied / supplied by the battery 240 by this charge / discharge command is discharged to the power network 6 through the charge / discharge device 220 or acquired from the power network 6, and the other customers with whom the aggregator 1 has contracted at the power exchange 5. Demand and supply at. That is, when the battery 240 is charged, the battery 240 is supplied from the power plant (power supply side) 4a of FIG. 1, and when discharged from the battery 240, the battery 240 is supplied to the large consumer (power reception side) 4b. These processes are normally automatically performed between the communication server in the aggregator 1 and the HEMS 210 of the customer 2.

  On the other hand, regarding the sales plan formulation unit 102 and the power transaction unit 103, information processing itself is performed by a device such as a server. However, human decisions are involved in formulating a plan and determining power trading.

  That is, for example, in the sales plan formulation unit 102, even if the outline of the power sales plan S002 can be calculated to some extent by a program or the like, a flexible response according to the situation at that time is insufficient with only a predetermined program. In the sense that the final decision of the plan is confirmed by human beings, it is often the case that small revisions and decisions are made by human judgment for the plans that have been drafted by the program. However, correction by human judgment is not necessarily indispensable, and if a more advanced judgment algorithm is constructed, it is possible that these human judgments and corrections will not be necessary.

  Similarly, in the power trading unit 103, the transaction processing with the power exchange 3 itself is mainly performed using a network, but it is possible to intervene the final judgment by humans regarding the final buying and selling judgment. Many. In this respect as well, as in the above-described sales plan formulation unit 102, it is highly meaningful for humans to make final decisions on sales. Note that these configurations are not necessarily required to be the same in all aggregator service providers, and are examples of the configuration of the aggregator 1 in order to explain the effects of the invention.

<Development of sales plan>
The development of the sales plan in the sales plan formulation unit 102 will be further described. The trading plan formulation unit 102 formulates the plan as information other than the customer information S001, such as the number of transactions disclosed on the power exchange 3, trading price information, and trading status (quote information) such as the amount of trading power. Is used. In addition to the information disclosed by the power exchange 5, the aggregator 1 also provides information on the weather and temperature information obtained from the weather forecasting company and other resources required for other power generation methods such as oil, coal, and gas obtained from other markets. The price, and the status of politics, economy, industry, etc. obtained from analytical institutions such as the economy and social conditions are also used.

  For the information and methods necessary for the above-mentioned trading plan formulation, only a part of the publicly known knowledge that has actually been carried out has been described. As described in “Issued by Company, Yoichi Yamamoto, Motohide Ikeda”, etc., various information is analyzed, and risk management, risk diversification, etc. are fully examined.

  Further, in the sales plan formulation unit 102, when charge / discharge control of the battery 240 of the electric vehicle 230 is performed, the power sales plan is also made using the customer information S001 transmitted from the plurality of customers 2 contracted with the aggregator 1. S002 is formulated.

  As described above, the customer information S001 includes at least the charge / discharge capacity, the remaining battery capacity, the total battery capacity, the use schedule of the electric vehicle, and the like. Formulate a sales plan S002.

  More specifically, based on the charge / discharge capacity, the remaining battery capacity, the total battery capacity, the scheduled use of the electric vehicle, etc., the electric vehicle 230 of each user 2 is not exceeded and the electric vehicle 230 of each user is not exceeded. In the range where there is no problem in the use of the battery 240, the power of the battery 240 is purchased, and a power trading plan S002 for selling the power to the battery 240 is created.

  In addition, the customer information S001 transmitted from the customer 2 includes maintenance information of the electric vehicle 230. In the trading plan formulation unit 102, the electric vehicle 230 is in the absence of maintenance during the maintenance period. A power trading plan S002 that does not buy or sell the power of the battery 240 of the vehicle 230 is formulated.

  As a result, the aggregator 1 can provide an aggregator service that does not cause a so-called “non-delivery” of power, which makes it impossible to supply power according to the contract to the supply destination such as the large consumer 4b. It becomes.

  As described above, in the aggregator service system according to the first embodiment of the present invention, the HEMS 210 of the customer 2 transmits the customer information S001 including the maintenance information. Using the customer information S001 including the maintenance information, the power trading plan S002 in which the absence due to the maintenance of the electric vehicle 230 is taken into consideration is formulated, and based on the power trading plan 3, power trading is performed. Even if the absence of the electric vehicle 230 occurs, it is possible to provide an aggregator service that is unlikely to cause shortage of power to a supply destination such as the large-volume consumer 4b.

<Modification>
In the first embodiment described above, the power transaction has been described as an example performed at a single power exchange, but is not necessarily limited to a single power exchange. There is no problem in adopting a mechanism for conducting power transactions at multiple exchanges.

  Moreover, if there is no problem in the permission of the electric power company managing the electric power network 6 and the delivery method of the purchased and sold electric power, the electric power transaction itself may be performed directly with the large consumer 4b instead of through the public exchange.

  Furthermore, there are still several methods of power trading conducted at the power exchange 3, and in any case, the amount of power supply is determined in advance, and the actual power is delivered at a later date. If it is an electric power transaction form to perform, the effect of this Embodiment 1 will be exhibited.

  In the first embodiment described above, an example in which the maintenance schedule is included as the maintenance information has been shown. However, information on the necessity of maintenance (urgentness) may be included in addition to the maintenance schedule. Thereby, the judgment material at the time of formulating the power trading plan S002 in the aggregator 1 increases, and the power trading plan S002 can be formulated more flexibly.

<Embodiment 2>
The aggregator service system according to the second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a block diagram showing the function and input / output information of each component in the second embodiment with respect to the overall configuration diagram of the aggregator service system of FIG. FIG. 3 basically discloses only the components essential to the description of the present invention, and omits the components that are not related to the present invention. Also, the same reference numerals are given to the same components as those of the first embodiment described with reference to FIG.

  As in the first embodiment, the aggregator service system according to the second embodiment participates in the aggregator 1, the customer 2 contracted with the aggregator 1, the power exchange 3 where the aggregator 1 performs power trading, and the power exchange 3. It is provided between a plurality of power plants (power sending side) 4a and a plurality of large consumers (power receiving side) 4b which are power trading partners with the aggregator 1.

<Composition of customers>
Since the configuration of the aggregator 1 is the same as that of the first embodiment, the configuration of the customer 2, particularly the service reminder device 250 mounted on the electric vehicle 230 will be described.

  The electric vehicle 230 of the second embodiment is different from the electric vehicle 230 of the first embodiment in that a service reminder device 250 is mounted.

  The service reminder device 250 includes the travel distance of the electric vehicle 230 (the total travel distance from the manufacture of the electric vehicle 230 or the travel distance from the previous maintenance), the travel time (the travel time from the manufacture of the electric vehicle 230 or the previous travel time). Maintenance information calculation unit 252 that calculates maintenance information of the electric vehicle 230 from various sensor information and the like, and maintenance information notification that notifies the user of the maintenance information calculated by the maintenance information calculation unit 252 Unit 253 and maintenance information transmission unit 251 that transmits maintenance information to HEMS 210 outside electric vehicle 230.

  Accordingly, the service reminder device 250 not only notifies the user of the maintenance information calculated by the maintenance information calculation unit 252 via the maintenance information notification unit 253, but also transmits it to the HEMS 210 outside the vehicle via the maintenance information transmission unit 251. be able to.

  And in HEMS210 of Embodiment 2, in addition to the structure of HEMS210 of Embodiment 1, it has further the customer information transmission part 212 which receives maintenance information from the service reminder apparatus 250 of the electric vehicle 230. FIG. The received maintenance information is included in the customer information S001 and transmitted from the HEMS 210 to the aggregator 1 through the information network 5.

  Here, the maintenance information calculated by the maintenance information calculation unit 252 includes information on necessity of maintenance and scheduled maintenance date. First, whether or not maintenance is necessary is determined by, for example, comparing a preset threshold value of the travel distance and travel time for which maintenance should be performed with the actual travel distance and travel time measured by the vehicle. Measures the viscosity value of grease, such as grease applied to moving parts such as engines and transmissions, for example, a method that determines that maintenance is necessary if there is more than the threshold A method for determining that maintenance is necessary if the viscosity value of the oil and fat measured by the sensor is compared with a preset viscosity value (threshold value) to be maintained, In addition, the number of times that the oil and fat exceeded a certain temperature is measured with a temperature sensor, and the degree of deterioration of the oil and fat is judged based on the number of times to determine whether maintenance is necessary. How to, and the like.

  In this manner, the maintenance information calculation unit 252 determines whether or not maintenance is necessary, and when maintenance is necessary, the information is notified to the user via the maintenance information notification unit 253 as maintenance information. It is also transmitted to the HEMS 210 outside the vehicle via the transmission unit 251, and the customer information transmission unit 212 of the HEMS 210 transmits the customer information S001 including the maintenance information to the aggregator 1.

  In addition, for example, when determining whether maintenance is necessary based on the travel distance and travel time, the scheduled maintenance date is set after a predetermined period has elapsed since the threshold is exceeded. As a result, the scheduled maintenance date can be determined. This can be the same when the necessity of maintenance is determined based on the viscosity value of the oil or fat. However, the viscosity value of the oil or fat is based on the degree of change in the viscosity value after the threshold value is exceeded. The scheduled maintenance date may be changed dynamically. For example, if a tendency for the viscosity value to increase rapidly is observed, measures such as advancing the scheduled maintenance date may be taken. If the maintenance time is set in advance, such as once every six months, the maintenance time is set as the scheduled maintenance date if the measured viscosity value is equal to or greater than the threshold value but the maintenance time is near. Also good.

  As described above, in the aggregator service system according to the second embodiment, the user himself / herself does not need to input maintenance information to the HEMS 210, which not only improves convenience but also prevents the user from making an input error, and inputs maintenance information. The problem of forgetting and performing maintenance does not occur.

  The operation in which the user himself / herself inputs maintenance information to the HEMS 210 using the maintenance information input unit 213 in the first embodiment is not prohibited in the second embodiment, and can be used together. For example, when there is no user input from the maintenance information input unit 213, the maintenance information sent from the service reminder device 250 is adopted, and conversely, the maintenance information input unit only when there is an input from the maintenance information input unit 213 by the user. The maintenance information input in 213 may be included in the customer information S001 and transmitted.

  As described above, in the aggregator service system according to the second embodiment, the maintenance information of the electric vehicle 230 is calculated from the travel distance, travel time, various sensor information, and the like of the electric vehicle 230. Then, the service reminder device 250 for notifying the user of the maintenance information is transmitted, and the maintenance information of the service reminder device 250 is transmitted to the HEMS 210 outside the electric vehicle 230, and the HEMS 210 includes the maintenance information in the aggregator 1. A configuration for transmitting information S001 is adopted.

  For this reason, not only the effect similar to Embodiment 1 and an aggregator service system is acquired, but the operation | work which a user himself inputs maintenance information into HEMS210 becomes unnecessary, and the convenience improves.

  In the above description, the communication method between the maintenance information transmission unit 251 of the service reminder device 250 in the electric vehicle 230 and the HEMS 210 in the customer 2 is not mentioned. When 240 and the charging / discharging device 220 are connected by a cable, power line communication via the cable can also be used.

  Moreover, you may use the control line used for control of charging / discharging between the battery 240 and the charging / discharging apparatus 220. FIG. Moreover, it is good also as a structure which communicates directly between the service reminder apparatus 250 and HEMS210 using near field communication etc. FIG.

  In addition, the maintenance information is not necessarily output from the service reminder device 250. For example, when the scheduled maintenance date calculated by the service reminder device 250 is more than a few months away, or the service reminder device 250 calculates the scheduled maintenance date. If this is not possible, the maintenance information itself may not be included in the customer information S001, and the customer information S001 may include information that the scheduled maintenance date is undecided as the maintenance information.

  In this case, the aggregator 1 performs the process with the maintenance time and period of the electric vehicle 230 undetermined, for example, formulates a power trading plan S002 that does not buy or sell the power of the battery 240 of the electric vehicle 230, or the maintenance time is undetermined. When the number of vehicles to be used is small, measures such as formulating a power trading plan S002 are taken without considering the maintenance time and period.

  In addition, when the maintenance information is created by the service reminder device 250, it may be possible to calculate the maintenance period, but the maintenance period cannot be accurately calculated. It ’s fine. For example, when determining whether or not maintenance is necessary based on the travel distance and travel time, it is assumed that the maintenance is regular, and the maintenance period is one to two days on Saturdays, Sundays, holidays, etc. When determining whether or not maintenance is necessary based on the viscosity value, it is conceivable that the maintenance period is from several days to one week because complicated maintenance is necessary.

<Embodiment 3>
An aggregator service system according to the third embodiment of the present invention will be described with reference to FIG. FIG. 4 is a block diagram showing the function and input / output information of each component in the third embodiment with respect to the configuration diagram of the entire aggregator service system in FIG. Note that FIG. 4 basically discloses only the components essential to the description of the present invention, and omits the components that are not related to the present invention. Also, the same reference numerals are given to the same components as those of the first embodiment described with reference to FIG.

  As in the first and second embodiments, the aggregator service system according to the third embodiment includes an aggregator 1, a customer 2 contracted with the aggregator 1, a power exchange 3 where the aggregator 1 performs power trading, It is provided between a plurality of power plants (power sending side) 4a and a plurality of large consumers (power receiving side) 4b that participate in the exchange 3 and become power trading partners with the aggregator 1.

<Configuration of aggregator>
First, the configuration of the aggregator 1 will be described. The aggregator 1 according to the third embodiment is received by the customer information receiving unit 101 that receives the customer information S001 from the HEMS 210 through the information network 5 and the customer information receiving unit 101 as in the first and second embodiments. A trading plan formulation unit 102 that creates a power trading plan S002 based on a plurality of customer information S001, a power trading unit 103 that conducts power trading in the power exchange 3 based on the power trading plan S002, and a power trading unit 103 The charging / discharging instruction | indication part 104 which transmits charging / discharging instruction | command S005 to HEMS210 through the information network 5 based on the electric power supply-and-demand plan S003 which is the electric power transaction performed was provided.

  The sales plan formulation unit 102 has not only the function of creating the power sales plan S002 but also the function of outputting the maintenance encouragement period S004. The aggregator 1 uses the maintenance encouragement period S004 output by the sales plan formulation unit 102. The maintenance change requesting unit 105 that transmits to the HEMS 210 of the corresponding customer 2 through the network 5 is further provided.

  The maintenance incentive period S004 is to change the maintenance time of a specific customer among the plurality of customer information S001 when it is predicted that the power supplied and supplied by the aggregator 1 will be insufficient at the time of planning the power trading plan S002. Thus, it is set when the shortage of power to be supplied / supplied in the aggregator 1 is improved, and is transmitted to urge the specific consumer to change the maintenance time. The maintenance encouragement period S004 includes a predetermined period as a maintenance candidate date. Note that the predetermined period can be set not only on a daily basis but also on a half-day basis or hourly basis.

  Here, there is no limitation on the method of selecting a customer for which the maintenance incentive period S004 is created. For example, the maintenance incentive period is set in advance from the customer who performs maintenance with a low degree of importance. The maintenance period may be changed. Further, based on the use schedule of the electric vehicle 230 included in the customer information S001, a change in the maintenance period may be urged to a customer who has a lot of free time in the electric vehicle 230.

  The maintenance incentive period S004 is not limited to the case where power to supply and demand is expected to be insufficient, but the aggregator 1 can increase the number of aggregators 1 by changing the maintenance time of a specific consumer when planning the power trading plan S002. Even when it is determined that power trading is possible, the maintenance encouragement period S004 is created, and the aggregator 1 improves the plan so that more trading can be performed.

<Composition of customers>
Next, the configuration of the customer 2 will be described. The consumer 2 of the third embodiment has an electric vehicle 230 having at least a HEMS 210, a charge / discharge device 220, a battery 240, and a service reminder device 250, as in the first embodiment. Similarly to the second embodiment, electric vehicle 230 is connected to charging / discharging device 220 during a time period when the user is not using the vehicle for running, and battery 240 inside electric vehicle 230 is charged / discharged.

  The charging / discharging device 220 is also connected to the power network 6, and charging / discharging of the battery 240 inside the electric vehicle 230 is performed using the power of the power network 6. These charge / discharge instructions to the charge / discharge device 220 are issued from the HEMS 210, and the power adjustment unit 211 of the HEMS 210 is configured to accept the charge / discharge instructions from the aggregator 1 through the information network 5.

  In addition to the configuration of the HEMS 210 of the second embodiment, the HEMS 210 of the third embodiment includes a maintenance encouragement period notification unit 214 that receives information on the maintenance encouragement period from the aggregator 1 through the information network 5 and notifies the service reminder device 250 of the information. In addition.

  Here, the service reminder device 250 according to the third embodiment will be described. The service reminder device 250 calculates the maintenance information calculated by the maintenance information calculation unit 252 and the maintenance information calculation unit 252 that calculates the maintenance information of the electric vehicle 230 from the travel distance, travel time, and various sensor information of the electric vehicle 230. A maintenance information notification unit 253 that notifies the user, a maintenance information transmission unit 251 that transmits maintenance information to the HEMS 210 outside the electric vehicle 230, and a maintenance encouragement period reception unit 254 that receives information on the maintenance encouragement period from the HEMS 210 are provided. doing.

  When the maintenance encouragement period receiving unit 254 receives the maintenance encouragement period information from the HEMS 210, the maintenance encouragement period receiving unit 254 receives the maintenance encouragement period information from the HEMS 210, and the maintenance information calculation unit 252 recalculates the maintenance information.

  Specifically, the maintenance period of maintenance information calculated by the maintenance information calculation unit 252 so far (referred to as a conventional maintenance period) is compared with the maintenance encouragement period newly transmitted from the HEMS 210, and If it is determined that there is no problem in operation of the electric vehicle 230 even if the maintenance period is replaced with the maintenance incentive period, the conventional maintenance period is recalculated based on the maintenance incentive period, and a new maintenance period is calculated. Is done.

  Here, the new maintenance period is calculated so as to be within the maintenance encouragement period output by the aggregator 1. For example, the aggregator 1 is compared with the conventional maintenance period calculated by the maintenance information calculation unit 252. When the maintenance incentive period is set with a date earlier than that, the maintenance information calculation unit 252 determines that the new maintenance period is included so that the date closest to the conventional maintenance period is included in the maintenance incentive period unless there is a special condition. Set.

  However, the maintenance information is not changed when a failure with a high degree of urgency has occurred in the electric vehicle 230 or when it is determined that the change of the maintenance period in the maintenance encouragement period is inappropriate.

  Further, even when the maintenance period is replaced with a maintenance encouragement period, the maintenance information calculation unit 252 determines whether or not there is a problem in the operation of the electric vehicles 230. As an example of the determination method, A determination method based on the location is given.

  That is, as described in the second embodiment, when the maintenance information of the electric vehicle 230 is calculated from various sensor information and the like, the maintenance target location and the type of failure can be specified. And if the location to be maintained is a malfunction directly related to driving in a drive electric system such as an engine, motor, transmission, battery, etc., a steering system such as a steering wheel, or a braking system such as a brake, it is highly urgent. Judge that the period cannot be changed. However, if the three places do not directly relate to traveling, for example, when the useful life of oil such as engine oil is approaching, the urgency is low, and it is determined that the initial maintenance period can be changed to the maintenance encouragement period.

  In addition, it is less urgent if the air conditioner or navigation device breaks down, the filter replacement time is approaching, etc., and it is determined that the initial maintenance period can be changed to the maintenance encouragement period. Make a decision.

  In order for the maintenance information calculation unit 252 to make the above determination, it is desirable that the maintenance information calculation unit 252 has information indicating how much a change in the maintenance period is permitted based on the part, the importance, and the like.

  The maintenance information recalculated by the maintenance information calculation unit 252 is output from the maintenance information transmission unit 251 to the HEMS 210, and the customer information transmission unit in the HEMS 210 includes the other information again to the aggregator 1 as the customer information S001. Send.

  In the aggregator 1, when new customer information S001 whose maintenance period has been changed is transmitted from the HEMS 210 of the customer 2, the power purchase plan planning unit 102 again performs the power purchase plan based on the new customer information S001. S002 is formulated.

  If a satisfactory power trading plan S002 is set by creating one maintenance encouragement period S004, the process proceeds to the stage of performing a power transaction as it is, but is satisfied by creating one maintenance encouragement period S004. When the power trading plan S002 cannot be established, the schedule conditions of the maintenance encouragement period S004 and the target electric vehicle 230 are changed, and the maintenance encouragement period S004 is created many times until the transaction deadline.

  When the maintenance period is changed by the above series of operations, the aggregator 1 may delete the maintenance encouragement period S004, or may continue to transmit it as it is. The timing at which these signals are raised or lowered is not particularly limited because it is not related to the features of the invention.

  Further, in reality, it is also possible to create a response signal for each signal transmission between the aggregator 1 and the HEMS 210 of the customer 2 and the service reminder device 211 of the electric vehicle 230 to perform more strict communication. Needless to say.

  As described above, the aggregator 1 according to the third embodiment also has a function of outputting the maintenance encouragement period S004 to the sales plan formulation unit 102, and the maintenance encouragement period S004 is provided to the HEMS 210 of the corresponding customer 2. Since the maintenance change request unit 105 that transmits through the information network 5 is included, even when the maintenance times of a plurality of electric vehicles 230 overlap, the maintenance time can be adjusted from the aggregator 1, and the supply and demand due to the concentration of maintenance of the electric vehicles 230 It is possible to provide an aggregator service that can contribute to smoothing power consumption of the power network 6 without falling in capacity.

<Modification>
In the second and third embodiments, the maintenance information in the customer information S001 received by the aggregator 1 from the customer 2 is transmitted in advance to an automobile dealer or an automobile repair shop where the electric vehicle 230 receives maintenance. A configuration may be added.

  By notifying the maintenance information in advance to an automobile dealer or an automobile repair shop, it becomes possible to arrange replacement parts and the like necessary for the electric vehicle 230 in advance, and the absence period due to maintenance of the electric vehicle 230 is shortened. The aggregator 1 can secure the electric vehicle 230 as its own power buffer for a longer time.

  Further, in the third embodiment, when the sales plan formulation unit 102 calculates the maintenance encouragement period S004, vacant information such as an automobile dealer or an automobile repair factory where the electric vehicle 230 receives maintenance, parts inventory information, and the like are considered. Then, the maintenance encouragement period S004 may be calculated. By adopting such a configuration, the absence period due to maintenance of the electric vehicle 230 is further shortened, and the aggregator 1 can utilize the electric vehicle 230 more effectively.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  DESCRIPTION OF SYMBOLS 1 Aggregator, 2 consumers, 3 Electricity exchange, 4b Large customer, 101 Consumer information receiving part, 102 Trading plan formulation part, 103 Electric power transaction part, 104 Charge / discharge instruction part, 105 Maintenance change request part, 210 HEMS, 211 Power adjustment unit, 212 Customer information transmission unit, 213 Maintenance information input unit, 214 Maintenance encouragement period notification unit, 220 Charge / discharge device, 230 Electric vehicle, 240 Battery, 250 Service reminder device, 251 Maintenance information transmission unit, 252 Maintenance Information calculation unit, 253 Maintenance information notification unit, 254 Maintenance encouragement period reception unit.

Claims (10)

An electric vehicle that uses power charged in the battery as a drive source;
An energy management system for instructing charging and discharging of the battery;
A consumer comprising a charge / discharge device that controls charge / discharge of the battery of the electric vehicle based on the charge / discharge instruction from the energy management system;
An aggregator service system comprising an aggregator for instructing the energy management system to supply and demand electric power to the battery from the outside,
The energy management system
A customer information transmitter that transmits customer information including at least maintenance information of the electric vehicle to the aggregator;
A power adjustment unit that controls the charging / discharging device in accordance with an instruction of supply and demand of the power from the aggregator, and charges and discharges the battery;
A maintenance information input unit for inputting the maintenance information;
The aggregator is
A trading plan formulation unit that receives the customer information from the energy management system and formulates a power trading plan using the customer information;
A power trading unit that sets a power supply and demand plan by conducting a power transaction in the power market using the power trading plan;
A charge / discharge command unit that gives a charge / discharge command for the battery to the energy management system based on the power supply / demand plan,
The maintenance information includes at least information on a maintenance period of the electric vehicle,
The sales plan formulation department
The aggregator service system is characterized in that, based on the maintenance information included in the customer information, the power trading plan is formulated so as not to buy or sell the power of the battery of the electric vehicle during the maintenance period. An electric vehicle that uses power charged in the battery as a drive source;
An energy management system for instructing charging and discharging of the battery;
A consumer comprising a charge / discharge device that controls charge / discharge of the battery of the electric vehicle based on the charge / discharge instruction from the energy management system;
An aggregator service system comprising an aggregator for instructing the energy management system to supply and demand electric power to the battery from the outside,
The energy management system
A customer information transmitter that transmits customer information including at least maintenance information of the electric vehicle to the aggregator;
A power adjustment unit that controls the charging / discharging device in accordance with an instruction of supply and demand of the power from the aggregator, and charges and discharges the battery,
The maintenance information includes at least information on a maintenance period of the electric vehicle,
The aggregator is
A trading plan formulation unit that receives the customer information from the energy management system and formulates a power trading plan using the customer information;
A power trading unit that sets a power supply and demand plan by conducting a power transaction in the power market using the power trading plan;
A charge / discharge command unit that gives a charge / discharge command for the battery to the energy management system based on the power supply / demand plan,
The electric vehicle is
A maintenance information calculation unit for calculating the maintenance information including the maintenance period;
A service reminder device having a maintenance information transmission unit for transmitting the maintenance information to the outside;
The customer information transmitter is
The maintenance information transmitted by the service reminder device is included in the customer information and transmitted to the aggregator,
The sales plan formulation department
The aggregator service system is characterized in that, based on the maintenance information included in the customer information, the power trading plan is formulated so as not to buy or sell the power of the battery of the electric vehicle during the maintenance period. The sales plan formulation department
A function for creating and outputting a maintenance encouragement period as a candidate for a maintenance period change included in the customer information,
The aggregator is
A maintenance change requesting unit for transmitting the maintenance incentive period to the customer;
The energy management system
A maintenance encouragement period notifying unit that transmits the maintenance encouragement period received from the aggregator to the service reminder device;
The service reminder device
A maintenance encouragement period receiving unit for notifying the maintenance information calculation unit of the maintenance encouragement period received from the energy management system;
The maintenance information calculation unit
When the maintenance encouragement period is received, the maintenance period and the maintenance encouragement period are compared, and when the maintenance period is changed to the maintenance encouragement period, it is determined that there is no problem in operation of the electric vehicle. The aggregator service system according to claim 2, wherein a new maintenance period is calculated based on the maintenance encouragement period and is transmitted to the energy management system as the maintenance information. The sales plan formulation department
When formulating the power trading plan, the maintenance of the electric vehicle of the consumer is expected to be insufficient due to maintenance of the electric vehicle, or the maintenance period of the electric vehicle of the consumer is changed. The aggregator service system according to claim 3, wherein the maintenance incentive period is created when it is assumed that more power can be bought and sold. The maintenance information calculation unit
Comparison of preset thresholds for travel distance and travel time to be maintained with the actual travel distance and travel time measured by the electric vehicle, and mounting on multiple parts that may wear out and deteriorate The aggregator service system according to claim 2 or 3, wherein the maintenance information including the maintenance period is calculated while determining whether maintenance is necessary based on the detected value of the sensor. A service reminder device mounted on an electric vehicle using power charged in a battery as a drive source,
The service reminder device
A maintenance information calculation unit for calculating maintenance information including a maintenance period of the electric vehicle;
A maintenance information transmitter for transmitting the maintenance information to the outside;
The maintenance information calculation unit
Comparison of preset thresholds for travel distance and travel time to be maintained with the actual travel distance and travel time measured by the electric vehicle, and mounting on multiple parts that may wear out and deteriorate A service reminder device that determines the necessity of maintenance based on the detected value of the sensor and calculates the maintenance period. A service reminder device mounted on an electric vehicle using power charged in a battery as a drive source,
The electric vehicle is
Received an instruction to supply and demand power to the battery from an aggregator provided outside,
The service reminder device
A maintenance information calculation unit for calculating maintenance information including a maintenance period of the electric vehicle;
A maintenance information transmitter for transmitting the maintenance information to the outside;
The maintenance information calculation unit
Comparison of preset thresholds for travel distance and travel time to be maintained with the actual travel distance and travel time measured by the electric vehicle, and mounting on multiple parts that may wear out and deteriorate And determining the necessity of maintenance based on the detected value of the sensor, and calculating the maintenance period,
The aggregator is
Receiving the maintenance information transmitted by the service reminder device, creating and outputting a maintenance encouragement period as a change candidate for the maintenance period,
The maintenance information calculation unit
When the maintenance encouragement period output by the aggregator is received, the maintenance period and the maintenance encouragement period are compared, and when the maintenance period is changed to the maintenance encouragement period, no problem occurs in the operation of the electric vehicle. A service reminder device that calculates a new maintenance period based on the maintenance encouragement period. An energy management system for instructing charging / discharging of the battery of an electric vehicle using electric power charged in the battery as a drive source,
The energy management system
Received an instruction to supply and demand power to the battery from an aggregator provided outside,
In the electric vehicle, charging / discharging of the battery is controlled by a charging / discharging device based on charging / discharging instructions from the energy management system,
The energy management system
A customer information transmitter that transmits customer information including at least maintenance information of the electric vehicle to the aggregator;
An energy management system comprising: a power adjustment unit configured to control the charging / discharging device in accordance with an instruction of supply / demand of the power from the aggregator to charge / discharge the battery. An energy management system for instructing charging / discharging of the battery of an electric vehicle using electric power charged in the battery as a drive source,
In the electric vehicle, charging / discharging of the battery is controlled by a charging / discharging device controlled based on an instruction of charging / discharging from the energy management system,
The electric vehicle is
Have a service reminder device,
The service reminder device
A maintenance information calculation unit for calculating maintenance information including a maintenance period of the electric vehicle;
A maintenance information transmitter for transmitting the maintenance information to the outside;
The maintenance information calculation unit
Comparison of preset thresholds for travel distance and travel time to be maintained with the actual travel distance and travel time measured by the electric vehicle, and mounting on multiple parts that may wear out and deteriorate And determining the necessity of maintenance based on the detected value of the sensor, and calculating the maintenance period,
The energy management system
An electric power adjustment unit that receives an instruction to supply and demand electric power to the battery from an aggregator provided outside, and controls the charging / discharging device to charge / discharge the battery;
An energy management system comprising: a customer information transmission unit that receives the maintenance information transmitted by the service reminder device and transmits customer information including the maintenance information to the aggregator. An energy management system for instructing charging / discharging of the battery of an electric vehicle using electric power charged in the battery as a drive source,
In the electric vehicle, charging / discharging of the battery is controlled by a charging / discharging device controlled based on an instruction of charging / discharging from the energy management system,
The electric vehicle is
Have a service reminder device,
The service reminder device
A maintenance information calculation unit for calculating maintenance information including a maintenance period of the electric vehicle;
A maintenance information transmitter for transmitting the maintenance information to the outside;
The maintenance information calculation unit
Comparison of preset thresholds for travel distance and travel time to be maintained with the actual travel distance and travel time measured by the electric vehicle, and mounting on multiple parts that may wear out and deteriorate And determining the necessity of maintenance based on the detected value of the sensor, and calculating the maintenance period,
The energy management system
An electric power adjustment unit that receives an instruction to supply and demand electric power to the battery from an aggregator provided outside, and controls the charging / discharging device to charge / discharge the battery;
Receiving the maintenance information transmitted by the service reminder device, and transmitting customer information including the customer information to the aggregator,
The aggregator is
Receiving the maintenance information transmitted by the service reminder device, creating and outputting a maintenance encouragement period as a change candidate for the maintenance period,
The maintenance information calculation unit
When the maintenance encouragement period output by the aggregator is received, the maintenance period and the maintenance encouragement period are compared, and when the maintenance period is changed to the maintenance encouragement period, no problem occurs in the operation of the electric vehicle. If it is determined, the energy management system calculates a new maintenance period based on the maintenance encouragement period and transmits the maintenance information as the maintenance information to the energy management system via the maintenance information transmission unit.

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