JP6202674B2 - Power management system - Google Patents

Description

  The present invention relates to a power management system.

In recent years, power management systems have attracted attention for dealing with power outages and power shortages that occur in times of disasters, and for dealing with the use of natural energy for the purpose of reducing CO ₂ . Some power management systems include a storage battery, and others use natural energy, for example, electric power obtained by solar power generation.

  In the case of a power management system that uses a storage battery, the system power is stored in the storage battery during a time when power demand is sufficient, and the power stored in the storage battery is discharged and supplied to the load device during a time when the power demand increases. To do. In this way, the power management system performs control so as to suppress an increase in power supplied from the grid. And the prior art which concerns on a power management system is disclosed by patent document 1. FIG.

  The prior art described in Patent Document 1 is a power management system that manages the power of a building that is a housing complex, and is an electric vehicle equipped with a stationary storage battery, a solar power generation device, and an in-vehicle storage battery provided in the building. A vehicle that is shared and used in a building. This power management system is concerned about the expansion of the storage space of the stationary storage battery and the increase in its maintenance cost, and in order to suppress the expansion of the scale of the stationary storage battery, the in-vehicle storage battery mounted on the vehicle is planned to be used in a planned manner.

JP 2013-99140 A

  However, in the conventional power management system, the vehicle must be electrically connected to the power management system (charger / discharger) whenever the power stored in the in-vehicle storage battery is supplied to the building and used. Here, when the vehicle is used as a passenger car by the user, the power management system may not be able to supply the power stored in the in-vehicle storage battery to the building. The conventional power management system has a problem that no consideration is given to such a problem.

  The present invention has been made in view of the above points, and in using the power of a storage battery mounted on a vehicle shared and used in a building, the power of the storage battery is surely used. An object is to provide a power management system capable of achieving the above.

  In order to solve the above problem, the power management system of the present invention is a power management system for using the power of a storage battery mounted on a vehicle shared and used in a building in the building, A charging / discharging unit for charging the storage battery or discharging the storage battery to supply electric power of the storage battery to the building, and a vehicle reservation for managing the use reservation of the plurality of vehicles by a user of the vehicle A control unit that controls the charging / discharging unit and executes a reservation for using the vehicle to supply power to the building using the vehicle reservation management unit based on the estimated power demand of the building; It is characterized by providing.

  The power management system configured as described above further includes a storage unit that stores power demand history information related to past power demand of the building and a charging schedule of the vehicle, and a communication unit that can acquire weather prediction information. The control unit supplies power to the building at a time when it is estimated that the power demand of the building exceeds a predetermined value based on at least one of the power demand history information, the charging schedule, and the weather prediction information. It is characterized in that a reservation for use of the vehicle necessary for the purpose is executed.

  The power management system configured as described above further includes a storage unit that stores battery remaining amount information for each vehicle of the storage battery, wherein the vehicle reservation management unit stores use reservation information of a user of the vehicle, and the control The use reservation is not set based on the use reservation information and the battery remaining amount information, and the unit executes the use reservation on the vehicle having a higher battery remaining amount than the other vehicles. .

  In the power management system configured as described above, a use time zone is set in advance for each of the plurality of vehicles so that at least one of the vehicles necessary for the control unit to supply power to the building can always be secured. Then, use reservation is executed.

  The power management system having the above configuration includes a communication unit that can acquire power failure information and disaster information, and a connection detection unit that detects an electrical connection between the vehicle and the charge / discharge unit, and the control unit includes: The use reservation is executed for the vehicle that is electrically connected to the charging / discharging unit as the vehicle necessary for supplying power to the building based on the power outage information or the disaster information. Yes.

  According to the configuration of the present invention, a power management system that can reliably use the power of a storage battery when using the power of the storage battery mounted on the vehicle shared and used in the building in the building. Can be provided.

It is a block diagram which shows the structure of the power management system of 1st Embodiment of this invention. It is a flowchart which shows the power management process based on the estimated power demand of the power management system of 1st Embodiment of this invention. It is explanatory drawing which shows the power management process of the power management system of 2nd Embodiment of this invention. It is explanatory drawing which shows the power management process of the power management system of 3rd Embodiment of this invention. It is a block diagram which shows the structure of the power management system of 4th Embodiment of this invention. It is a flowchart which shows the power management process based on the estimated power demand of the power management system of 4th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

<First Embodiment>
First, the structure and operation of the power management system according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the power management system.

  As shown in FIG. 1, the power management system 1 includes a solar power generation unit 19 that generates power using solar energy, and a charge / discharge unit 10 capable of charging and discharging power. The power management system 1 is electrically connected to a commercial power system 101 and home loads of the building 103 and the like. The power management system 1 manages the amount of received power purchased from an electric power company.

  The power receiving / transforming equipment 102 collectively receives power from the commercial power system 101 at a high voltage, converts it to a low voltage, and supplies power to the building 103. For example, in a building 103 made of an apartment, power is supplied to the exclusive part 103a and the common part 103b.

  The photovoltaic power generation unit 19 and the charging / discharging unit 10 are electrically connected to the power wiring system 5a converted into a low voltage by the power receiving / transforming facility 102. The solar power generation unit 19 includes a solar panel 18 and a power conditioner 17. The charging / discharging unit 10 includes vehicles 14a, 14b, and 14c equipped with chargers / dischargers 11a, 11b, and 11c and driving storage batteries (batteries) 15a, 15b, and 15c. In the following description, the chargers / dischargers 11a, 11b, and 11c may be collectively referred to as “charge / discharger 11”, and the vehicles 14a, 14b, and 14c may be collectively referred to as “vehicle 14”. The storage batteries 15a, 15b, and 15c may be collectively referred to as “storage battery 15”.

  The power management system 1 includes a vehicle shared use system 20 for so-called car sharing in which the vehicle 14 is shared and used by the building 103. The vehicle shared use system 20 includes a vehicle 14 and a vehicle reservation management unit 21. The vehicle reservation management unit 21 manages the use reservation of the plurality of vehicles 14 by the car sharing user 40 of the vehicle 14. The car sharing user 40 can use the terminal (not shown) such as a personal computer or a mobile device to access the vehicle reservation management unit 21 via the communication unit 25 and the signal line 6f and execute the use reservation of the vehicle 14. . Further, the vehicle reservation management unit 21 is connected to the system control unit 4 through a signal line 6c.

  The power management system 1 includes a system control unit 4 that is a control unit including a computer terminal. The system control unit 4 uses the wattmeter 8a provided in the power wiring system 5a to obtain information on the amount of received power purchased from the power system via the signal line 6a including a communication line. The system control unit 4 is connected to the power conditioner 17 through a signal line 6g, and monitors the amount of power generated by the solar panel 18 using the solar panel.

  The system control unit 4 is connected to each of the chargers / dischargers 11a, 11b, and 11c through a signal line 6b, and controls charging and discharging of the storage battery 15, and sets and monitors the storage battery remaining amount and charge / discharge power amount. For example, the system control unit 4 may create a charge schedule or a discharge schedule according to the reservation status obtained from the vehicle reservation management unit 21. The system control unit 4 discharges the storage battery 15 and supplies power to the building 103.

  The charging schedule and discharging schedule created by the system control unit 4 are stored in a database 7 that is a storage unit. The database 7 is connected to the system control unit 4 by a signal line 6d. The database 7 stores power demand history information related to past power demand of the building 103 associated with information such as weather, date and time, and power generation amount. The system control unit 4 is connected to the network 50 via the communication unit 26 and the signal line 6e, and can acquire weather prediction information and the like.

  In the power management system 1 having the above configuration, when the power management operation is instructed, the system control unit 4 operates the solar power generation unit 19 and the charge / discharge unit 10.

  When the amount of sunlight at night or during the day decreases and the solar panel 18 does not generate power, the power management system 1 supplies the building 103 with the received power from the commercial power system 101. At this time, the system control unit 4 controls the power conditioner 17 to be in an operation stop state so that power is supplied from the commercial power system 101 to the building 103. Further, the system control unit 4 operates the charger / discharger 11 to charge the midnight power from the commercial power system 101 to the storage battery 15 of the vehicle 14 or to discharge the power stored in the storage battery 15 and supply it to the building 103. Sometimes.

  When the solar panel 18 can generate power such as during the day when the amount of sunlight is sufficient, the power management system 1 supplies the building 103 with the power generated by the solar panel 18. At this time, the system control unit 4 operates the power conditioner 17 and controls the power to be supplied from the solar power generation unit 19 and the commercial power system 101 to the building 103.

  In addition, when the solar panel 18 is generating sufficient electric power with respect to the power demand of the building 103, the power management system 1 reverses the surplus power generated by the solar panel 18 to the commercial power system 101. You may make it do. At this time, the system control unit 4 performs control so that power is supplied from the solar power generation unit 19 to the building 103 and the commercial power system 101. Then, the system control unit 4 controls so that only the power generated by the solar panel 18 is reversely flowed to the commercial power system 101 and the power stored in the storage battery 15 is not supplied to the commercial power system 101.

  When the remaining amount of power stored in the storage battery 15 is insufficient, the power management system 1 charges and stores the generated power of the solar panel 18 and the received power from the commercial power system 101 in the storage battery 15. At this time, the system control unit 4 operates the charger / discharger 11 to control the power obtained from the solar power generation unit 19 and the commercial power system 101 to be stored in the storage battery 15.

  By such operation, the power management system 1 and the car sharing user 40 can use the vehicle 14 jointly.

  On the other hand, in the power management system 1, the system control unit 4 can derive a future estimated power demand using the power demand history information stored in the database 7 and the weather prediction information acquired from the network 50. For example, the system control unit 4 acquires the next day's weather forecast information from the network 50 in order to derive the estimated power demand of the next day, and searches the database 7 for the power demand history information of the same weather in the past in the past.

  Based on the estimated power demand of the building 103 obtained in this way, the system control unit 4 uses the vehicle reservation management unit 21 to execute a use reservation of the vehicle 14 for supplying power to the building 103. More specifically, based on the estimated power demand of the building 103 and the charging schedule for the vehicle 14, the system control unit 4 at a time (time zone) when the power demand of the building 103 is estimated to exceed a predetermined value, The use reservation of the vehicle 14 necessary for supplying power to the building 103 is executed.

  Then, the power management process based on the estimated power demand of such a power management system 1 is demonstrated along the flow shown in FIG. FIG. 2 is a flowchart showing power management processing based on the estimated power demand of the power management system 1.

  When the operation of the power management system 1 is started (start in FIG. 2), the system control unit 4 connects to the network 50 via the communication unit 26 and the signal line 6e at a predetermined timing, and acquires weather prediction information ( Step # 101 in FIG. Then, for the acquired weather prediction information, the system control unit 4 searches the database 7 for power demand history information on the day of the latest weather in the past (step # 102). The system control unit 4 derives a future estimated power demand of the building 103 from the power demand history information (step # 103).

  Next, the system control unit 4 determines whether or not the estimated power demand exceeds a predetermined value set in advance (step # 104). When the estimated power demand does not exceed the predetermined value set in advance (No in Step # 104), the process returns to Step # 101 to acquire the weather prediction information again, and the future estimated power demand derivation process of the building 103 (Step #) 101- # 103) is continued.

  On the other hand, when the estimated power demand exceeds a predetermined value set in advance in Step # 104 (Yes in Step # 104), the system control unit 4 acquires a charging schedule from the database 7 (Step # 105). Subsequently, the system control unit 4 executes the use reservation of the vehicle 14 for supplying power to the building 103 using the vehicle reservation management unit 21 (step # 106). And it returns to step # 101 and the electric power management process based on the future estimated electric power demand of the building 103 is continued.

  In this way, the vehicle 14 required to supply power to the building 103 at the time (time period) when it is estimated that the power demand of the building 103 exceeds a predetermined value is a car sharing user 40 as a passenger car. Secured without being used.

Second Embodiment
Next, the power management system of 2nd Embodiment of this invention is demonstrated using FIG. FIG. 3 is an explanatory diagram showing power management processing of the power management system. Since the basic configuration of this embodiment is the same as that of the first embodiment described above, the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted. And

  In the power management system 1 of the second embodiment, when there are a plurality of vehicles 14 that can be reserved at a time (time period) when it is estimated that the power demand of the building 103 exceeds a predetermined value, the car sharing user 40 of the vehicle 14 The use reservation of the vehicle 14 for supplying electric power to the building 103 is executed based on the use reservation information and the remaining battery information of the storage battery 15 for each vehicle 14. The database 7 stores battery remaining amount information for each vehicle 14 of the storage battery 15. Further, the vehicle reservation management unit 21 stores use reservation information of the car sharing user 40 of the vehicle 14. More specifically, the system control unit 4 executes the use reservation for the vehicle 14 that has no use reservation set based on the use reservation information and the battery remaining amount information and has more battery remaining capacity than the other vehicles 14. To do.

  Here, as an example, it is assumed that there are three vehicles 14 (vehicles 14a, 14b, and 14c) that can be reserved at a time (time period) when the power demand of the building 103 is estimated to exceed a predetermined value. FIG. 3 shows the presence / absence of usage reservation information for each of the three vehicles 14 and the remaining battery level of the storage battery 15 of each vehicle 14. The shaded portion of the band extending horizontally in FIG. 3 means that there is a use reservation or a remaining battery level.

  And according to FIG. 3, the vehicle 14a has more battery remaining capacity compared with the other vehicles 14b and 14c. However, since the use reservation 31a of the car sharing user 40 is set for the vehicle 14a that day, the system control unit 4 excludes the vehicle 14a from candidates as the vehicle 14 for supplying power to the building 103. .

  On the other hand, the use reservation of the car sharing user 40 is not set for the vehicles 14b and 14c on that day. Therefore, the system control unit 4 executes the use reservation as the vehicle 14 for supplying electric power to the building 103 to the vehicle 14c having a larger remaining battery level than the vehicle 14b.

  In this way, the vehicle 14c having enough power to supply the building 103 to the car sharing user 40 at the time (time period) when it is estimated that the power demand of the building 103 exceeds the predetermined value. It is secured without being used as.

<Third Embodiment>
Next, the power management system of 3rd Embodiment of this invention is demonstrated using FIG. FIG. 4 is an explanatory diagram showing power management processing of the power management system. Since the basic configuration of this embodiment is the same as that of the first and second embodiments described above, the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted. It shall be.

  In the power management system 1 of the third embodiment, the use time zone is set in advance for each of the plurality of vehicles 14a, 14b, and 14c so that at least one vehicle 14 necessary for supplying power to the building 103 can always be secured. Set and execute reservation.

  According to FIG. 4 as an example, there are three vehicles 14 (vehicles 14 a, 14 b, 14 c) that are operated in the power management system 1. The power management system 1 predefines a time zone obtained by dividing one day (24 hours) into three, sets a time zone 32a for the vehicle 14a, sets a time zone 32b for the vehicle 14b, and sets a time zone 32b for the vehicle 14c. A time zone 32c is set.

  The three vehicles 14 do not necessarily have to be divided into three parts per day (24 hours), and even if the use reservations are set so that the use time zones of the plurality of vehicles 14 partially overlap. good. Thereby, electric power can be supplied from the plurality of vehicles 14 to the building 103 during a time period in which it is estimated that the electric power demand is relatively high in one day. Moreover, you may decide to also divide | segment and set the time slot | zone of the discharge for supplying electric power to the building 103 according to the number of vehicles.

  In this way, at least one vehicle 14 necessary for supplying power to the building 103 is always secured without being used as a passenger car by the car sharing user 40.

<Fourth embodiment>
Next, the power management system of 4th Embodiment of this invention is demonstrated using FIG.5 and FIG.6. FIG. 5 is a block diagram showing the configuration of the power management system, and FIG. 6 is a flowchart showing power management processing based on the estimated power demand of the power management system. Since the basic configuration of this embodiment is the same as that of the first embodiment described above, the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted. Shall.

  In the power management system 1 of the fourth embodiment, as shown in FIG. 5, the charging / discharging unit 10 includes a connection detection unit 16 (16a, 16b, 16c). The connection detection unit 16 detects an electrical connection between the vehicle 14 and the charge / discharge unit 10. In addition, the connection detection part 16 is provided with the sensor etc. which can identify the electrical connection of the vehicle 14 and the charging / discharging part 10 electrically or mechanically. The connection detector 16 may be provided outside the charger / discharger 11, such as a connection point between the vehicle 14 and the charger / discharger 11 shown in FIG. 5, or may be provided inside the charger / discharger 11.

  The power management system 1 acquires power outage information and disaster information from the network 50, and performs an emergency response related to power supply to the building 103. More specifically, the system control unit 4 is used for a vehicle 14 that is electrically connected to the charging / discharging unit 10 as a vehicle 14 necessary for supplying power to the building 103 based on power outage information or disaster information. Make a reservation.

  Next, the power management process based on the estimated power demand related to the power failure or disaster of the power management system 1 of the fourth embodiment will be described along the flow shown in FIG.

  When the operation of the power management system 1 is started (start of FIG. 6), the system control unit 4 connects to the network 50 via the communication unit 26 and the signal line 6e at a predetermined timing, and acquires power outage information or disaster information. (Step # 201 in FIG. 6). Next, the system control unit 4 confirms the electrical connection between the plurality of vehicles 14 and the charge / discharge unit 10 based on the information from the connection detection unit 16 (step # 202).

  Next, the system control unit 4 determines whether or not there is a vehicle 14 that is electrically connected to the charge / discharge unit 10 (step # 203). When there is no vehicle 14 electrically connected to the charge / discharge unit 10 (No in Step # 203), the process returns to Step # 201 again.

  On the other hand, in step # 203, when there is a vehicle 14 that is electrically connected to the charging / discharging unit 10 (Yes in step # 203), the system control unit 4 uses the vehicle reservation management unit 21 to communicate with the charging / discharging unit 10. It is determined whether there is a use reservation for the vehicle 14 with reference to the use reservation information of the electrically connected vehicle 14.

  When there is a use reservation in the vehicle 14 electrically connected to the charge / discharge unit 10 (Yes in Step # 204), the system control unit 4 uses the car sharing that has made a use reservation of the vehicle 14 using e-mail or the like. The user 40 is notified of the forced cancellation of the use reservation (step # 205). And the system control part 4 cancels | releases the use reservation of the vehicle 14 electrically connected with the charging / discharging part 10 (step # 206).

  After step # 206 or when there is no use reservation for vehicle 14 electrically connected to charging / discharging unit 10 in step # 204 (No in step # 204), system control unit 4 sets vehicle reservation management unit 21 in place. The use reservation of the vehicle 14 for supplying electric power to the building 103 at the time of power outage or disaster is executed (step # 207). And it returns to step # 201 and the electric power management process based on the future estimated electric power demand of the building 103 is continued.

  For example, when the vehicle 14b can be used at the time of a power failure, the self-sustained output of the power conditioner 17 of the solar power generation unit 19 that is connected to the charger / discharger 11b by the wiring 5b (see FIG. 5) and is in a self-sustained operation is It can also be used together with 15b. At this time, electric power is supplied from the charger / discharger 11b to a part of the load 103c of the shared unit 103b using the wiring 5c (see FIG. 5). Here, the charger / discharger 11b has been described, but it is also possible to separately supply power from each of the chargers / dischargers 11a, 11c to a part of the load 103c of the shared unit 103b, another dedicated outlet, or the like.

  In this way, the vehicle 14 necessary for supplying power to the building 103 is secured without being used as a passenger car by the car sharing user 40 in the event of a power failure or disaster.

  As described above, the power management system 1 is a power management system for using the power of the storage battery 15 mounted on the vehicle 14 shared and used by the building 103 in the building 103. The charging / discharging unit 10 for charging the battery 103 or discharging the storage battery 15 to supply the power of the storage battery 15 to the building 103 and the car sharing user 40 of the vehicle 14 manage the use reservation of the plurality of vehicles 14. The vehicle reservation management unit 21 and the charging / discharging unit 10 are controlled, and the use reservation of the vehicle 14 for supplying power to the building 103 using the vehicle reservation management unit 21 based on the estimated power demand of the building 103 is executed. A system control unit 4.

  According to this configuration, the vehicle 14 necessary for supplying power to the building 103 can be secured without being used as a passenger car by the car sharing user 40. Therefore, it is possible to reliably use the power stored in the storage battery 15 of the vehicle 14 as the power supplied to the building 103.

  The power management system 1 includes a database 7 that stores power demand history information related to past power demand of the building 103 and a charging schedule of the vehicle 14, and a communication unit 26 that can acquire weather prediction information. The system control unit 4 supplies power to the building 103 at a time (time period) when it is estimated that the power demand of the building 103 exceeds a predetermined value based on at least one of the power demand history information, the charging schedule, and the weather prediction information. The use reservation of the vehicle 14 necessary for this is executed.

  According to this configuration, the vehicle 14 required to supply power to the building 103 is passed to the car sharing user 40 at a time (time period) when the power demand of the building 103 is estimated to exceed a predetermined value. Can be secured without being used. Therefore, it is possible to reliably use the electric power stored in the storage battery 15 of the vehicle 14 as the electric power supplied to the building 103 at a time required by the building 103. Moreover, according to this structure, since the vehicle 14 required in order to supply electric power to the building 103 is reserved systematically, shortening the period which uses the vehicle 14 in order to supply electric power to the building 103. Can do. Therefore, the period during which the car sharing user 40 can use the vehicle 14 as a passenger car becomes longer, and convenience is improved.

  In addition, the power management system 1 includes a database 7 that stores battery remaining amount information for each vehicle 14 of the storage battery 15, and the vehicle reservation management unit 21 stores use reservation information of the car sharing user 40 of the vehicle 14. The control unit 4 executes the use reservation for the vehicle 14 in which the use reservation is not set based on the use reservation information and the remaining battery level information and the remaining battery level is higher than that of the other vehicles 14.

  According to this configuration, based on the estimated power demand of the building 103, it is possible to secure the vehicle 14 having enough power to supply the building 103 without being used as a passenger car by the car sharing user 40. it can. Therefore, it is possible to reliably use the electric power stored in the storage battery 15 of the vehicle 14 as the electric power supplied to the building 103 at a time required by the building 103. Moreover, according to this structure, since the storage battery 15 of the some vehicle 14 can be used uniformly, it is possible to prevent that only the storage battery 15 of the specific vehicle 14 deteriorates. And the number of charging / discharging cycles can be reduced, and it is possible to extend the life of the storage batteries 15 of the plurality of vehicles 14 uniformly.

  In addition, the power management system 1 sets a use time zone in advance for each of the plurality of vehicles 14 so that at least one vehicle 14 necessary for the system control unit 4 to supply power to the building 103 can always be secured. To make a reservation.

  According to this configuration, at least one vehicle 14 necessary for supplying power to the building 103 can be secured at all times without being used by the car sharing user 40 as a passenger car. Therefore, even when an unexpected situation occurs in which the power demand of the building 103 suddenly increases, it is possible to respond to the situation using the power stored in the storage battery 15 of the vehicle 14.

  In addition, the power management system 1 includes a communication unit 26 that can acquire power outage information and disaster information, and a connection detection unit 16 that detects electrical connection between the vehicle 14 and the charge / discharge unit 10, and the system control unit 4. Makes a use reservation for the vehicle 14 that is electrically connected to the charging / discharging unit 10 as the vehicle 14 necessary for supplying power to the building 103 based on the power failure information or the disaster information.

  According to this configuration, the vehicle 14 necessary for supplying power to the building 103 can be secured without being used as a passenger car by the car sharing user 40 in the event of a power failure or disaster. Therefore, at the time of a power failure or a disaster, for example, the power stored in the storage battery 15 of the vehicle 14 can be reliably used as the power supplied to the shared portion 103b of the building 103, for example.

  Thus, according to the configuration of the above-described embodiment of the present invention, when the power of the storage battery 15 mounted on the vehicle 14 shared and used in the building 103 is used in the building 103, the storage battery is surely used. The power management system 1 capable of using 15 powers can be provided.

  Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention.

  For example, in the above embodiment, it has been described that there are three vehicles 14 (vehicles 14a, 14b, 14c) equipped with the storage battery 15 operated by the power management system 1, but the vehicle 14 is limited to three. It does not mean that other numbers may be used.

  The present invention can be used in a power management system including a vehicle equipped with a storage battery.

1 Power management system 4 System control unit (control unit)
7 Database (storage unit)
DESCRIPTION OF SYMBOLS 10 Charging / discharging part 11, 11a, 11b, 11c Charger / discharger 14, 14a, 14b, 14c Vehicle 15, 15a, 15b, 15c Storage battery 16, 16a, 16b, 16c Connection detection part 17 Power conditioner 18 Solar panel 19 Solar Photovoltaic power generation unit 20 Vehicle shared use system 21 Vehicle reservation management unit 25, 26 Communication unit 40 Car sharing user (user)
50 network

Claims (5)

A power management system for using the power of a storage battery mounted on a vehicle shared and used in a building in the building,
A charging / discharging unit for charging the storage battery or discharging the storage battery to supply power of the storage battery to the building;
A vehicle reservation management unit that manages use reservations of the plurality of vehicles by a user of the vehicle;
A controller that controls the charging / discharging unit and executes use reservation of the vehicle to supply power to the building using the vehicle reservation management unit based on the estimated power demand of the building;
A power management system comprising: A storage unit that stores power demand history information related to past power demand of the building and a charging schedule of the vehicle;
A communication unit capable of acquiring weather forecast information,
The control unit supplies power to the building at a time when it is estimated that the power demand of the building exceeds a predetermined value based on at least one of the power demand history information, the charging schedule, and the weather prediction information. The power management system according to claim 1, wherein a reservation for use of the vehicle necessary for the purpose is executed. A storage unit for storing battery remaining amount information for each vehicle of the storage battery;
The vehicle reservation management unit stores use reservation information of a user of the vehicle;
The control unit executes a reservation for use for the vehicle that has not been set for use based on the use reservation information and the remaining battery level information and has more battery power than other vehicles. The power management system according to claim 1 or 2, characterized by the above.   The control unit sets a use time zone in advance for each of the plurality of vehicles and executes a use reservation so that at least one of the vehicles necessary for supplying power to the building can be secured at all times. The power management system according to claim 1, wherein: A communication unit capable of acquiring power outage information and disaster information;
A connection detection unit that detects electrical connection between the vehicle and the charge / discharge unit;
The control unit executes use reservation for the vehicle that is electrically connected to the charging / discharging unit as the vehicle necessary for supplying power to the building based on the power outage information or the disaster information The power management system according to claim 1, wherein the power management system is a power management system.

Images