JP2015162967A - Energy management system and program - Google Patents

Energy management system and program Download PDF

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Publication number
JP2015162967A
JP2015162967A JP2014036772A JP2014036772A JP2015162967A JP 2015162967 A JP2015162967 A JP 2015162967A JP 2014036772 A JP2014036772 A JP 2014036772A JP 2014036772 A JP2014036772 A JP 2014036772A JP 2015162967 A JP2015162967 A JP 2015162967A
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JP
Japan
Prior art keywords
power storage
storage battery
storage device
device
management system
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Pending
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JP2014036772A
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Japanese (ja)
Inventor
直晃 荻野
Naoaki Ogino
直晃 荻野
裕司 小寺
Yuji Kodera
裕司 小寺
内田 丈
Jo Uchida
丈 内田
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日立マクセル株式会社
Hitachi Maxell Ltd
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Priority to JP2014036772A priority Critical patent/JP2015162967A/en
Publication of JP2015162967A publication Critical patent/JP2015162967A/en
Application status is Pending legal-status Critical

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06Electricity, gas or water supply
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/0006Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network for single frequency AC networks
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J2003/146Tariff based load management
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging several batteries simultaneously or sequentially
    • H02J7/0021Monitoring or indicating circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging current or voltage
    • H02J7/0072Regulation of charging current or voltage using semiconductor devices only
    • H02J7/0073Regulation of charging current or voltage using semiconductor devices only with a programmable charge schedule
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/32End-user application control systems
    • Y02B70/3258End-user application control systems characterised by the end-user application
    • Y02B70/3266The end-user application being or involving home appliances
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Systems supporting the management or operation of end-user stationary applications, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y04S20/20End-user application control systems
    • Y04S20/22End-user application control systems characterised by the aim of the control
    • Y04S20/222Demand response systems, e.g. load shedding, peak shaving
    • Y04S20/224Curtailment; Interruptions; Retail price-responsive demand
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Systems supporting the management or operation of end-user stationary applications, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y04S20/20End-user application control systems
    • Y04S20/24End-user application control systems characterised by the end-user application
    • Y04S20/242End-user application control systems characterised by the end-user application the end-user application being or involving home appliances

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of surely performing maintenance and management of a storage battery in an energy management system.SOLUTION: An energy management system 1 includes a power storage device 13 including a storage battery arranged in a predetermined area and connected to a management device 11 for controlling electric power in the predetermined area through a first communication path and a maintenance server 30 connected to the power storage device 13 through a second communication path different from the first communication path without passing through the management device 13. The power storage device 13 successively transmits storage battery information for the storage battery in the power storage device 13 at predetermined timing. The maintenance server 30 acquires and stores the storage battery information from the power storage device 13 and monitors a state of the storage battery in the power storage device 13 on the basis of the stored storage battery information.

Description

  The present invention relates to an energy management system and a program.

  In recent years, a power storage device is provided in a predetermined area such as a house, a building, or a region, and an energy management system that acquires information such as power consumption in various devices in the predetermined area by the power receiving unit and the power storage device is installed. A technique for providing information such as power consumption to a user is known.

  In the following Patent Document 1, information on a price plan with different electricity charges according to time zones and information on the unit price of system electricity electricity charges from an information center connected to a HEMS (Home Energy Management System) via a communication network Has been disclosed, and a technology for setting a charge / discharge time of a storage battery based on a rate plan and a unit price of an electricity rate is disclosed.

  In Patent Document 2 below, communication is performed between the home gateway connected to the HEMS and the server device via the IP network, and the connection to the HEMS is performed according to the operation control instruction transmitted from the server device to the home gateway. A technique for controlling each electric device and power storage device is disclosed.

  As described in Patent Documents 1 and 2 below, by controlling devices in a predetermined area based on information transmitted from a server connected to the energy management system, power consumption in the predetermined area can be reduced, Can be saved.

JP2013-236519A JP 2013-246455 A

  Incidentally, a storage battery that can be repeatedly charged and discharged is incorporated in a power storage device installed in the energy management system. Due to the nature of the storage battery, it is desired that the state of the storage battery is constantly monitored and maintained and managed more reliably.

  An object of this invention is to provide the technique which can perform maintenance and management of the storage battery in an energy management system more reliably.

  An energy management system according to the present invention includes a storage battery provided in a predetermined area, a power storage device connected via a first communication path to a management device that controls power in the predetermined area, and the management device And a maintenance server connected to the power storage device via a second communication path different from the first communication path, and the power storage device includes a storage battery related to the storage battery in the power storage device. The information is sequentially transmitted at a predetermined timing, and the maintenance server stores in the storage unit an acquisition unit that acquires the storage battery information from the power storage device, a storage unit that stores the storage battery information acquired by the acquisition unit, And a monitoring unit that monitors the state of the storage battery in the power storage device based on the stored storage battery information.

  In the energy management system, the power storage device installed in the predetermined area is connected to the management device that controls power in the predetermined area via the first communication path, and the maintenance server is connected to the first storage device without the management device. The power storage device is connected via a second communication path different from the one communication path. The maintenance server acquires and stores storage battery information sequentially transmitted from the power storage device at a predetermined timing, and monitors the state of the storage battery in the power storage device based on the stored storage battery information. When the storage battery information is transmitted to the maintenance server via the management device, the storage battery information cannot be transmitted to the maintenance server if a failure occurs in the first communication path. According to this configuration, since the power storage device and the maintenance server are connected via the second communication path different from the first communication path without using the management device, the storage battery information is transmitted to the maintenance server more reliably. The state of the storage battery can be monitored, and the storage battery can be maintained and managed.

  In the energy management system, the storage battery information may include at least one of a temperature, a voltage, and a capacity of the storage battery. According to this configuration, the maintenance server can monitor the state of the storage battery based on at least one of the temperature, voltage, and capacity of the storage battery.

  Further, in the energy management system, the power storage device further transmits abnormality information indicating abnormality of the storage battery in the power storage device to the management device, and transmits the abnormality information to the maintenance server, and the acquisition unit Further, the abnormality information may be acquired from the power storage device. According to this configuration, the abnormality of the storage battery can be grasped in the management device, and the storage battery having the abnormality in the maintenance server can be easily identified.

  In the energy management system, the power storage device acquires device information indicating a state of a device connected to the management device via the first communication path, and performs the maintenance via the second communication path. The information may be transmitted to a server, and the acquisition unit may further acquire the device information from the power storage device. According to this configuration, the power storage device can acquire the device information of the device connected to the management device and transmit the device information to the maintenance server. Therefore, in the maintenance server, the state of the device installed in a predetermined area can be determined. Can be confirmed.

  Further, in the energy management system, the monitoring unit predicts an expiration date of the storage battery in the power storage device based on the storage battery information of the power storage device stored in the storage unit, and the maintenance server Furthermore, it is good also as including the notification part which notifies replacement | exchange of the said storage battery based on the prediction result of the said monitoring part. According to this configuration, the maintenance server can notify the power storage device of replacement of the storage battery according to the storage battery usable time limit in the power storage device, so that the user can use the storage battery more safely. Become.

  In the energy management system, the power storage device further transmits a measurement result of a charge / discharge capacity of the power storage device in the power storage device over a predetermined period to the maintenance server, and the maintenance server further includes the power storage device from the power storage device. A charge setting unit that acquires the measurement result and sets a charge amount corresponding to the acquired measurement result for the power storage device may be included. According to this configuration, the maintenance server can charge according to the charge / discharge capacity of the storage battery in the power storage device.

  The energy management system may further include the management device. The energy management system may further include a management server connected to the management device via a third communication path different from the first communication path and the second communication path. According to this configuration, communication can be performed between the management apparatus and the management server.

  The energy management system may further include an information terminal provided in the predetermined area and connected to the maintenance server and the power storage device via the second communication path. According to this configuration, in addition to communication between the power storage device and the maintenance server, communication can be performed between the information terminal and the power storage device, and between the information terminal and the maintenance server.

  In the energy management system, the power storage device may have an inspection mode in which the storage battery is fully charged after a predetermined time has elapsed after the storage battery is completely discharged and the capacity of the storage battery is measured. According to this configuration, in the power storage device, it is possible to check the more accurate capacity of the storage battery in the power storage device.

  In the energy management system, a plurality of the power storage devices connected to the plurality of management devices via the first communication path are installed in the predetermined area, and the maintenance server includes the plurality of storage devices. The storage unit is connected to each of the plurality of power storage devices via the second communication path without passing through each of the management devices, and the storage unit stores the plurality of storage battery information of the plurality of power storage devices for each power storage device. The monitoring unit may monitor the state of the storage battery in the power storage device for each power storage device based on the storage battery information for each power storage device stored in the storage unit. According to this configuration, the plurality of power storage devices are connected to the plurality of management devices provided in the predetermined area through the first communication path, and the maintenance server is connected to each power storage device and the power storage device. The connection is made via the second communication path without going through the management device. Therefore, the maintenance server can more reliably acquire the storage battery information for each power storage device in the predetermined area and monitor the state of the storage battery in the power storage device.

  In the energy management system, the predetermined area may be a specific area that is determined in advance. According to this configuration, the maintenance server can monitor the state of each storage battery in a plurality of power storage devices installed in a specific area.

  In the energy management system, the predetermined area may be a housing complex in which a plurality of dwelling units are assembled, and the power storage device and the management device may be installed in each of the plurality of dwelling units. Good. According to this configuration, the maintenance server can monitor the state of the storage battery in each power storage device installed in a plurality of dwelling units in the apartment house.

  Further, in the energy management system, each of the plurality of power storage devices is an inspection mode in which the storage battery in the power storage device is completely discharged and then the storage battery is fully charged after a predetermined time has elapsed and the capacity of the storage battery is measured. The storage unit stores legal inspection dates for electrical equipment in the apartment house, and the maintenance server further stores the legal inspection dates stored in the storage unit for the plurality of power storage devices. It is good also as including the inspection mode control part which avoids and sets the operation timing of the said inspection mode. According to this configuration, the plurality of power storage devices in the apartment house can execute the inspection mode while avoiding the legal inspection date.

  In the energy management system, the plurality of power storage devices may transmit the storage battery information to the maintenance server at different timings. According to this configuration, communication traffic between the plurality of power storage devices and the maintenance server can be reduced as compared with the case where the storage battery information is simultaneously acquired from the plurality of power storage devices.

  Further, in the energy management system, each of the plurality of power storage devices includes a charging unit that charges the storage battery in the power storage device, and the plurality of charging units of the plurality of power storage devices includes a first charging method and Charging is performed using at least one of the second charging methods, and the first charging method is configured such that the plurality of charging units are mutually connected based on a charging start time preset in the plurality of power storage devices. It is a charging method for charging at different timings, and the second charging method may be a charging method for starting charging by a soft start method. According to this configuration, since charging is started at mutually different timings in the plurality of power storage devices or charging is performed by the soft start method, in the apartment house when each of the plurality of power storage devices charges the storage battery The instantaneous load of power can be reduced.

  Further, in the energy management system, each of the plurality of power storage devices may maintain the abnormality information when the predetermined time elapses after transmission of the abnormality information indicating the abnormality of the power storage device. The maintenance server may further include a setting unit that sets the predetermined time for each power storage device. According to this configuration, each of the plurality of power storage devices transmits the abnormality information to the maintenance server when a predetermined time set for each power storage device has elapsed after transmitting the abnormality information to the management device. Therefore, when an abnormality occurs in a plurality of power storage devices substantially simultaneously, communication traffic between the maintenance server and each power storage device is reduced compared to the case where abnormality information is simultaneously transmitted from each power storage device to the maintenance server, Abnormal information can be more reliably transmitted from each power storage device to the maintenance server.

  A program according to the present invention is a program for causing a computer to execute an operation of a maintenance server in the energy management system, wherein an acquisition step of sequentially acquiring the storage battery information from the power storage device at a predetermined timing, and the acquisition step A storage step of storing the acquired storage battery information and a monitoring step of monitoring a state of the storage battery in the power storage device based on the storage battery information stored in the storage step are executed by a computer.

  According to the configuration of the present invention, it is possible to more reliably perform maintenance and management of the storage battery in the energy management system.

It is a mimetic diagram showing the energy management system concerning a 1st embodiment. FIG. 2 is a block diagram illustrating a configuration of a power storage device illustrated in FIG. 1. It is the block diagram which illustrated the composition of the maintenance server shown in FIG. It is a figure which shows the example of a data structure of user information DB shown in FIG. It is a figure which shows the data structure example of storage battery information DB shown in FIG. It is a figure which shows the example of a data structure of abnormality information DB shown in FIG. It is a schematic diagram which shows the structural example of the energy management system which concerns on 2nd Embodiment. It is a block diagram which shows the structural example of the maintenance server shown in FIG. It is a block diagram which shows the structural example of the maintenance server in 3rd Embodiment. It is the figure which represented typically the time change of the voltage and electric current by a constant current constant voltage charging system. It is the figure which represented typically the time change of the voltage and electric current when performing constant current constant voltage charge by a soft start system. It is the figure which represented typically the time change of the voltage and electric current when performing constant current constant voltage charge by a soft start system. It is a block diagram which shows the structural example of the maintenance server in 4th Embodiment. It is a flowchart which shows operation | movement of the automatic inspection mode of the electrical storage apparatus in 4th Embodiment. It is a block diagram which shows the structural example of the maintenance server in 5th Embodiment. It is a flowchart which shows operation | movement of the maintenance server in a modification (11).

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<First Embodiment>
FIG. 1 is a schematic diagram showing an energy management system according to the present embodiment. As shown in FIG. 1, the energy management system 1 according to the present embodiment is installed in a HEMS 10 installed for each house (hereinafter referred to as a user's house) and a management company that manages the operation of the HEMS 10. It has a HEMS management server 20 and a maintenance server 30 installed in a maintenance company that performs maintenance and management of the power storage device 13. The HEMS 10, the HEMS management server 20, and the maintenance server 30 are connected to a communication network 2 such as the Internet. Each configuration will be described below.

  The HEMS management server 20 includes a central processing unit (CPU), a memory including a random access memory (RAM) and a read only memory (ROM), and a communication interface (all not shown). When the CPU executes a control program stored in the ROM, the HEMS management server 20 is connected to the management device 11 of the HEMS 10 via the communication network 2 via the communication interface, and the management device 11 transmits information about the HEMS 10 (HEMS). Information). The HEMS information includes, for example, information such as power consumption in the HEMS 10.

  As shown in FIG. 1, the HEMS 10 includes a management device 11, a HUB 12, a power storage device 13, a device group 14 (14 a to 14 n), a router 15, and a distribution board 16.

  As the communication protocol of the HEMS 10, for example, ECHONET Lite is used, and a LAN (Local Area Network) such as Ethernet (registered trademark) is used in the lower layer. The router 15 has a LAN interface and a WAN (Worldwide Area Network) interface. The LAN interface of the router 15 is connected to the management device 11, the HUB 12, and the power storage device 13, and the WAN interface of the router 15 is connected to a broadband line at the user's home.

  The management device 11 is connected to a power storage device 13 and a device group 14 compliant with ECHONET Lite, and the management device 11 and the power storage device 13 and the device group 14 are based on a LAN standard that is a lower layer of the ECHONET Lite. Communication is performed with each other via a communication path (first communication path). Further, the management apparatus 11 is connected to the communication network 2 via the WAN interface of the router 15 and can communicate with the HEMS management server 20 via a communication path (third communication path) for connecting to the HEMS management server 20. It has become.

  The power storage device 13 can communicate with the maintenance server 30 via a communication path (second communication path) for connecting to the maintenance server 30 via the WAN interface of the router 15 without going through the management device 11. It has become. Note that the first communication path and the second communication path may be physically different communication paths, or may be logically different communication paths. In short, it is only necessary that the maintenance server 30 and the power storage device 13 communicate with each other via a communication path different from the communication path in the HEMS 10 without using the management device 11.

  The management apparatus 11 is provided with a LAN interface, and devices 14a and 14b are connected to the LAN interface. Devices 14c to 14n are connected to the HUB 12. The devices 14a to 14n are devices that consume power such as lighting, refrigerators, televisions, and air conditioners that are compatible with ECHONET Lite. The device group 14 is connected to the distribution board 16 and the power storage device 13 via a power line (not shown), and is supplied with power from the distribution board 16 or the power storage device 13 under the control of the management device 11, and performs a predetermined operation. I do. Each of the device groups 14 sends device information about the device including error information generated in the device to the first communication path.

  The management device 11 includes a CPU, a memory including a RAM and a ROM, a display unit, an operation unit, and a communication unit (all not shown).

  The display unit includes, for example, a liquid crystal display, and displays various information such as an operation screen, power consumption at the user's house, and a usage state of the device group 14. The operation unit has a touch panel provided on the display unit, and accepts user operations. The communication unit communicates with the power storage device 13 and the device group 14 in the user's home, and connects to the communication network 2 via the router 15 to communicate with the HEMS management server 20.

  When the CPU executes a control program stored in the ROM, the management device 11 controls the operation of the power storage device 13 and the device group 14 according to a preset operation schedule of the HEMS 10, for example. To control. In addition, the management device 11 measures the amount of power supplied from the distribution board 16 to the power storage device 13 and the device group 14 at predetermined time intervals by a power amount measurement sensor (not shown) provided on the distribution board 16. Display the measurement result on the display. Furthermore, the management device 11 is connected to the HEMS management server 20 via the communication network 2 by the router 15 and transmits HEMS information such as power consumption at regular intervals. In addition, when the management device 11 receives a notification notifying the abnormality of the storage battery 131 (see FIG. 2) from the power storage device 13 described later, the management device 11 notifies the HEMS management server 20 of the abnormality of the storage battery 131 via the communication network 2.

  The power storage device 13 is connected to the management device 11 via the router 15. The power storage device 13 is connected to the communication network 2 by the router 15 at a predetermined timing, and communicates with the maintenance server 30 via the communication network 2. Specifically, the power storage device 13 transmits information related to the storage battery 131 (hereinafter referred to as storage battery information) and abnormality information indicating abnormality of the storage battery 131 to the maintenance server 30 via the second communication path. Details of the storage battery information and abnormality information will be described later. Further, the power storage device 13 receives device information such as error information transmitted from each of the device groups 14 connected to the management device 11 via the first communication path, and receives the device information via the second communication route. Transmit to the maintenance server 30. In addition, the power storage device 13 inquires of the maintenance server 30 about the transmission frequency of the storage battery information, the expiration date of use of the storage battery 131, and the like via the second communication path, and transmits the transmission frequency and the expiration date of use transmitted from the maintenance server 30. The operation is performed based on various information.

  FIG. 2 is a block diagram illustrating the configuration of the power storage device 13. As illustrated in FIG. 2, the power storage device 13 includes a storage battery 131, a temperature sensor 131a, a capacity measurement sensor 131b, a voltage detection sensor 131c, a control unit 132, an inverter 133, a communication interface 134, and a notification unit 135.

  The storage battery 131 is a rechargeable secondary battery, and a lithium ion battery is used in this embodiment. The storage battery 131 stores the DC power converted by the inverter 133. A temperature sensor 131a, a capacity measurement sensor 131b, and a voltage detection sensor 131c are connected to the storage battery 131. The temperature sensor 131a outputs the result of measuring the temperature of the storage battery 131 to the control unit 132 at regular intervals. The capacity measurement sensor 131b detects the current input / output in the storage battery 131 at regular intervals, and outputs the result of measuring the capacity of the storage battery 131 to the control unit 132. The voltage detection sensor 131c outputs the result of detecting the voltage of the storage battery 131 to the control unit 132 at regular time intervals.

  The inverter 133 converts the AC power supplied from the distribution board 16 to DC power corresponding to the voltage of the storage battery 131 and outputs it to the storage battery 131 and is discharged from the storage battery 131 under the control of the control unit 132. The DC power is converted into AC power having a predetermined voltage and output to the device group 14.

  The communication interface 134 communicates with the maintenance server 30 connected to the communication network 2 via the router 15 and also communicates with the management apparatus 11 via the router 15 under the control of the control unit 132.

  The notification unit 135 includes a plurality of LEDs (Light Emitting Diodes) provided so as to be visible from the outside of the power storage device 13 and a speaker. The notification unit 135 lights the LED under the control of the control unit 132 and outputs a predetermined sound from the speaker.

  The control unit 132 includes a CPU and a memory including a RAM and a ROM. The control unit 132 controls each unit connected to the control unit 132 and exchanges data with the maintenance server 30 or the management device 11 by the CPU executing a control program stored in the ROM. This will be specifically described below.

  The control unit 132 controls charging and discharging of the storage battery 131. The function of charging the storage battery 131 in the control unit 132 is referred to as a charging unit, and the function of discharging the storage battery 131 is referred to as a discharging unit.

  In addition, the control unit 132 transmits the storage battery information to the maintenance server 30 via the communication interface 134 at a predetermined transmission timing. The storage battery information includes the temperature detected by the temperature sensor 131a, the capacity detected by the capacity measurement sensor 131b, and the voltage value detected by the voltage detection sensor 131c. The storage battery information is transmitted to the maintenance server 30 at a predetermined transmission frequency (for example, every 15 minutes). The transmission timing of the storage battery information is different from the timing at which the HEMS information is transmitted from the management device 11. The transmission frequency of the storage battery information is set in advance in the power storage device 13, but the control unit 132 inquires of the transmission frequency to the maintenance server 30 to be described later, and stores the storage battery information at the transmission frequency acquired from the maintenance server 30. 30. The inquiry about the transmission frequency to the maintenance server 30 may be performed, for example, every predetermined time or may be performed when the storage battery information is transmitted.

  In addition to the storage battery information, the control unit 132 transmits abnormality information indicating abnormality of the storage battery 131 to the management device 11 and also transmits it to the maintenance server 30. The abnormality information is transmitted to the management device 11 and the maintenance server 30 when the control unit 132 determines that the storage battery 131 is abnormal. Whether or not the storage battery 131 is abnormal is determined based on a predetermined threshold value (hereinafter referred to as a first threshold value) corresponding to each of temperature, capacity, and voltage value. When the detected temperature is equal to or higher than the predetermined temperature T1 (° C.), or when the detected capacity is equal to or lower than the predetermined capacity C1 (%), or the detected voltage value is predetermined When the voltage value V1 is equal to or greater than V1, it is determined that the storage battery 131 is abnormal.

  When the control unit 132 determines that the storage battery 131 is abnormal, the control unit 132 transmits the abnormality information including the storage battery information determined to be abnormal to the management device 11 and transmits the abnormality information to the maintenance server 30 via the communication interface 134. Further, when the control unit 132 determines that the storage battery 131 is abnormal, the notification unit 135 turns on an LED indicating the abnormality of the storage battery 131 and outputs a notification sound indicating the abnormality of the storage battery 131 from the speaker.

  In addition, the control unit 132 inquires of the maintenance server 30 about the expiration date of the storage battery 131, and acquires replacement information indicating the expiration date of the storage battery 131 from the maintenance server 30. The inquiry about the usable time limit to the maintenance server 30 may be performed, for example, every predetermined period, or may be performed when the storage battery information is transmitted. When the control unit 132 receives the replacement information of the storage battery 131 from the maintenance server 30, the control unit 132 turns on an LED indicating the replacement of the storage battery 131 at a timing before a usable period indicated by the replacement information, and replaces the storage battery 131 from the speaker. A notification sound indicating is output.

  Further, when receiving the device information transmitted from each of the device groups 14, the control unit 132 transmits the received device information to the maintenance server 30 via the communication interface 134.

  Next, the maintenance server 30 will be described. FIG. 3 is a block diagram illustrating a configuration example of the maintenance server 30. As illustrated in FIG. 3, the maintenance server 30 includes a control unit 31, a communication interface 32, a storage unit 33, a display unit 34, and an operation unit 35.

  The storage unit 33 is configured by a nonvolatile storage medium such as a hard disk. The storage unit 33 includes a user information DB (Database) 33a, a storage battery information DB 33b, and an abnormality information DB 33c. Details of the user information DB 33a, the storage battery information DB 33b, and the abnormality information DB 33c will be described later.

  The display unit 34 has a display such as a liquid crystal display, for example, and displays various data such as information on the storage battery 131 and user information under the control of the control unit 31.

  The operation unit 35 has an input device such as a keyboard. The operation unit 35 receives an operation of the input device by the operator, and outputs a signal indicating the content of the received operation to the control unit 31.

  The control unit 31 includes a CPU and a memory including a RAM and a ROM. The control unit 31 implements the functions of the acquisition unit 311, the notification unit 312, and the monitoring unit 313 when the CPU executes a control program stored in the ROM. Each function will be described below.

  The acquisition unit 311 is connected to the power storage device 13 via the communication network 32 via the communication interface 32, acquires storage battery information from the power storage device 13 at regular intervals, and stores the acquired storage battery information in the storage battery information DB 33b of the storage unit 33. To do. In addition, when the acquisition unit 311 acquires abnormality information from the power storage device 13, the acquisition unit 311 stores the acquired abnormality information in the abnormality information DB 33c. Further, when acquiring the device information transmitted from the device group 14, the acquiring unit 311 stores the acquired device information in a predetermined storage area in the storage unit 33 for each power storage device 13.

  The monitoring unit 313 monitors the state of the storage battery 131 in the power storage device 13 based on the storage battery information for each power storage device 13 stored in the storage battery information DB 33b.

  Specifically, based on the storage battery information for each power storage device 13 stored in the storage battery information DB 33b, the monitoring unit 313 determines whether or not the storage battery 131 in the power storage device 13 is in a state of issuing a warning (hereinafter, a warning state). Judging. The determination as to whether or not the warning state is present is made based on a second threshold different from the first threshold (T1, C1, V1) corresponding to each of the temperature, capacity, and voltage values included in the storage battery information. When the temperature of the storage battery 131 is less than T1 (° C.) and is equal to or higher than T2 (° C.) (<T1), or the capacity of the storage battery 131 is larger than C1 (%), the monitoring unit 313 has C2 (> C1). (%) Or less, or when the voltage value of the storage battery 131 is less than V1 and greater than or equal to V2 (<V1), it is determined that the storage battery 131 is in a warning state. If the monitoring unit 313 determines that the warning state is present, the transmission frequency (for example, every 15 minutes) of storage battery information preset in the power storage device 13 determined to be in the warning state is set as the transmission frequency. Higher transmission frequency (for example, every 5 minutes).

  Furthermore, the monitoring unit 313 estimates the usable period of the storage battery 131 of each power storage device 13 based on the storage battery information for a certain period for each power storage device 13. That is, the monitoring unit 313 is based on the storage battery information for a certain period of the power storage device 13 in the storage battery information DB 33b and the usage conditions (temperature, voltage, and capacity) for the preset useful life of the storage battery 131. Estimate the expiration date of Specifically, for example, when the average value of the temperature in the storage battery information for a certain period of a certain power storage device 13 is higher than the temperature determined by the use conditions, the monitoring unit 313 stores the storage battery of that power storage device 13. As the usable period 131, a usable period that is shorter than the usable period defined by the preset useful life is estimated.

  The notification unit 312 makes various notifications to the user or the power storage device 13 via the communication interface 32. Specifically, when the acquisition unit 311 stores abnormality information in the abnormality information DB 33b, the notification unit 311 reads out user information corresponding to the power storage device 13 that has transmitted the abnormality information from the user information DB 33a. And the notification part 312 transmits the mail which shows that the storage battery 131 is abnormal to the mail address of the read user information via the communication interface 32 as a destination. In this case, when the abnormality information is stored in the abnormality information DB 33b, the notification unit 312 reads the user information of the power storage device 13 that has transmitted the abnormality information from the user information DB 33a, and displays the read user information on the display unit 34. The operator of the maintenance server 30 may be notified that the abnormality information has been acquired. As a result, the operator can refer to the telephone number of the displayed user information and notify the user by telephone or the like that the storage battery 131 is abnormal.

  The notification unit 312 is set by the monitoring unit 313 for the power storage device 13 in which the storage unit 131 is determined to be in a warning state by the monitoring unit 313 in response to an inquiry about the transmission frequency from the power storage device 13. Information indicating the transmission frequency is transmitted via the communication interface 32. On the other hand, for the power storage device 13 that has not been determined to be in a warning state, the notification unit 312 sends information indicating the same transmission frequency as the transmission frequency preset for the power storage device 13 via the communication interface 32. To send.

  Further, the notification unit 312 sends exchange information indicating the usable period estimated for each power storage device 13 in the monitoring unit 313 to the power storage device 13 in response to an inquiry about the usable time limit of the storage battery 131 from the power storage device 13. Transmit via the communication interface 32.

  Here, each data structure of user information DB33a, storage battery information DB33b, and abnormality information DB33c is demonstrated. FIG. 4A is a diagram illustrating a data structure example of the user information DB 33a. As shown in FIG. 4A, the user information DB 33a stores, as user information, data such as a user name, an email address, a telephone number, and an address for each power storage device ID that identifies the power storage device 13 in each user house. Yes. The mail address and the telephone number are stored as, for example, a mail address and a telephone number set for the mobile phone owned by the user as the emergency contact information of the user. The user information is registered by the operator when the power storage device 13 is installed in the HEMS 10, and updated as needed.

  FIG. 4B is a diagram illustrating a data structure example of the storage battery information DB 33b. As illustrated in FIG. 4B, the storage battery information DB 33b sequentially stores storage battery information (temperature, voltage, capacity) acquired from the power storage device 13 in order of reception time for each power storage device ID.

  FIG. 4C is a diagram illustrating a data structure example of the abnormality information DB 33c. As illustrated in FIG. 4C, the abnormality information DB 33c stores, for each power storage device ID, storage battery information (temperature, voltage, capacity) included in the abnormality information acquired from the power storage device 13 together with the reception time of the abnormality information. The abnormality information is transmitted at a timing at which the storage battery 131 is determined to be abnormal in the power storage device 13, and is stored for each power storage device ID each time the abnormality information is transmitted. In FIG. 4C, abnormal information is received at the reception time “2013/12/20 13:40” from the power storage device 13 with the power storage device ID “10003”, and the storage battery determined to be abnormal in the power storage device 13 in this abnormality information. An example in which information (temperature tx, voltage vx, capacity cx) is included is shown.

  In the first embodiment described above, the power storage device 13 in the HEMS 10 installed in one user's house is not connected to the management device 11 but is connected via a second communication path different from the first communication path. 30 can communicate. Therefore, when an abnormality occurs in the storage battery 131 and the storage apparatus 131 notifies the management apparatus 11 of an abnormality, even if a failure occurs in the first communication path or the management apparatus 11, the second communication path passes through the second communication path. Since the maintenance server 30 can be notified that the storage battery 131 is abnormal, it is possible to quickly cope with the abnormality of the storage battery 131.

  Moreover, since the maintenance server 30 can acquire and store the storage battery information transmitted from the power storage device 13 at regular intervals, the maintenance server 30 can monitor the state of the storage battery 131 of the power storage device 13 based on the storage battery information. . Furthermore, when the storage battery 131 is in a warning state, the transmission frequency of the storage battery information can be set high, so that the monitoring of the state of the storage battery 131 can be strengthened to cope with an abnormality occurring in the storage battery 131.

  In addition, the power storage device 13 inquires of the maintenance server 30 about the expiration date of the storage battery 131, and acquires replacement information indicating the expiration date of the storage battery 131 estimated by the maintenance server 30. Since the power storage device 13 notifies the replacement of the storage battery 131 a predetermined period before the usable period indicated by the replacement information, the user can know the replacement time of the storage battery 131 and use the storage battery 131 more safely. it can.

  In addition, the power storage device 13 acquires device information transmitted from the device group 14 and transmits the device information to the maintenance server 30. Even if a failure occurs in the management device 11 or the third communication path between the management device 11 and the HEMS management server 20, the device information of the device group 14 is transmitted to the maintenance server 30. The state of the device group 14 connected to the management device 11 can be grasped more reliably.

Second Embodiment
Although 1st Embodiment mentioned above demonstrated the example which monitors the storage battery 131 of the electrical storage apparatus 13 in HEMS10 installed in every one house, it is 1st from several electrical storage apparatuses 13 installed in apartment houses, such as an apartment. Similarly to the first embodiment, the storage battery information may be transmitted to the maintenance server, and each storage battery 131 in the plurality of power storage devices 13 may be monitored in the maintenance server. In this case, if storage battery information is simultaneously transmitted from the plurality of power storage devices 13 to the maintenance server, a communication error may occur between the maintenance server and the plurality of power storage devices 13. Therefore, in the present embodiment, an example will be described in which the maintenance server acquires monitoring information from the plurality of power storage devices 13 so that a communication error does not occur between the plurality of power storage devices 13 and the maintenance server in the apartment house.

  FIG. 5 is a schematic diagram showing a configuration example of the energy management system in the present embodiment. In FIG. 5, the same code | symbol as 1st Embodiment is attached | subjected to the structure similar to 1st Embodiment. Hereinafter, a configuration different from the first embodiment will be described.

  As illustrated in FIG. 5, the apartment house 100 includes a dedicated unit 101 including a plurality of dwelling units (user houses) and a shared unit 102 excluding the dwelling unit. In the housing complex 100, a power receiving unit 103 that receives power from the system power 3 is provided, and power is distributed from the power receiving unit 103 to each user's house in the exclusive unit 101 and each distribution board 16 provided in the shared unit 102. The

  As shown in FIG. 5, in the energy management system 1 </ b> A according to the present embodiment, the HEMS 10 similar to that of the first embodiment is provided for each user house in the exclusive unit 101, and the shared unit 102 includes a MEMS (Mansion Energy Management). System) 10a is provided. In the HEMS 10 of FIG. 5, the HUB 12 is not shown, but the HUB 12 is connected to the router 15 and the device group 14 is connected to the HUB 12 and the management apparatus 11 as in the first embodiment.

  Each HEMS 10 provided in the exclusive unit 101 and the MEMS 10 a provided in the shared unit 102 are connected to the HEMS / MEMS management server 21 via the communication network 2.

  The MEMS 10 a is configured by connecting a MEMS management device 111, a power storage device 13, and a device group 141 to the LAN interface of the router 15. As with the HEMS 10, the communication protocol of the MEMS 10a uses ECHONET Lite, and a communication path (first communication path) based on the LAN standard, which is a lower layer, between the MEMS management apparatus 111, the power storage apparatus 13, and the device group 141. ) To communicate with each other. The device group 141 is a device that consumes electric power, for example, lighting, air conditioning, an elevator, and the like installed in the shared unit 102 based on ECHONET Lite. The MEMS management device 111 is connected to the communication network 2 by the router 15 and is connected to the HEMS / MEMS management server 21 via a communication path (third communication path) for connecting to the HEMS / MEMS management server 21. Yes.

  In the following description, when the power storage device 13 connected to the HEMS 10 is distinguished from the power storage device 13 connected to the MEMS 10a, the power storage device connected to the HEMS 10 is referred to as a HEMS power storage device and is connected to the MEMS 10a. The obtained power storage device is referred to as a MEMS power storage device.

  In the present embodiment, the storage battery information transmission timing is set in advance in each power storage device 13 so that the storage battery information is transmitted from the power storage devices 13 in the apartment house 100 to the maintenance server 30A at different timings. The transmission timing of the storage battery information of each power storage device 13 is, for example, the serial number of the power storage device 13. A time shifted by a predetermined time may be set based on the numerical value included in.

  The MEMS management device 111 includes a CPU, a memory including a RAM and a ROM, a display unit, an operation unit, and a communication unit (all not shown). The display unit includes, for example, a liquid crystal display, and displays various information such as an operation screen, power consumption in the shared unit 102, and a usage state of the device group 141. The operation unit has a touch panel provided on the display unit, and accepts user operations. The communication unit communicates with the MEMS power storage device 13 and the device group 141 and connects to the communication network 2 via the router 15 to communicate with the HEMS / MEMS management server 21.

  The MEMS management device 111 controls the operation of the MEMS power storage device 13 and the device group 141 in accordance with a predetermined operation schedule of the MEMS 10a by the CPU executing a control program stored in the ROM, and in the shared unit 102 Control power. In addition, the MEMS management device 111 supplies the amount of power supplied from the distribution board 16 to the MEMS power storage device 13 and the device group 141 by a power amount measurement sensor (not shown) provided in the distribution board 16 at predetermined time intervals. Measure and display the measurement result on the display unit. Furthermore, the MEMS management apparatus 111 is connected to the HEMS / MEMS management server 21 via the communication network 2 by the router 15 and transmits information such as the power consumption in the shared unit 102 at regular intervals. When the MEMS management device 111 receives abnormality information of the storage battery 131 (see FIG. 2) from the MEMS power storage device 13, the MEMS management device 111 notifies the HEMS / MEMS management server 21 of the abnormality of the storage battery 131.

  The HEMS / MEMS management server 21 is connected to the plurality of management devices 11 and the MEMS management device 111 via the communication network 2. The HEMS / MEMS management server 21 has a CPU, a memory including a RAM and a ROM, and a communication interface (all not shown).

  The HEMS / MEMS management server 21 communicates with the management apparatus 11 and the MEMS management apparatus 111 by connecting to the communication network 2 via the communication interface and executing management programs stored in the ROM. Information related to power consumption and the like is received from the device 11 and the MEMS management device 111.

  The maintenance server 30A is connected to the plurality of HEMS power storage devices 13 and the MEMS power storage device 13 via the communication network 2 (second communication path). FIG. 6 is a block diagram illustrating a configuration example of the maintenance server 30A. In FIG. 6, the same code | symbol as 1st Embodiment is attached | subjected to the structure similar to the maintenance server 30 (refer FIG. 3) of 1st Embodiment. The maintenance server 30 </ b> A differs from the maintenance server 30 in that the storage battery information is acquired from the plurality of power storage devices 13 in the apartment house 100, but has the same function as the maintenance server 30. Hereinafter, a configuration different from the first embodiment will be described.

  The storage unit 33 includes a user information DB 33a as in the first embodiment. In the present embodiment, in addition to the user information of the HEMS power storage device 13, the user information of the MEMS power storage device 13 is stored in the user information DB 33 a. As the user information of the MEMS power storage device 13, a mail address, a telephone number, an address, and the like of a portable terminal of an administrator who manages the shared unit 102 are stored.

  The control unit 31A includes a CPU and a memory including a RAM and a ROM. 31 A of control parts implement | achieve each function of the acquisition part 311A, the notification part 312A, and the monitoring part 313A, when CPU runs the control program memorize | stored in ROM.

  The acquisition unit 311A connects to each power storage device 13 in the apartment house 100 via the communication network 32 (second communication path) via the communication interface 32, and stores storage battery information from each power storage device 13 in the apartment house 100 at different timings. The storage battery information acquired is stored in the storage battery information DB 33 b for each power storage device 13.

  The monitoring unit 313A has the same function as the monitoring unit 313 of the first embodiment, and monitors the state of each storage battery 131 based on the storage battery information of the plurality of power storage devices 13 in the apartment house 100. Further, the notification unit 312A has the same function as the notification unit 312 of the first embodiment, and makes various notifications to the user and the plurality of power storage devices 13 in the apartment house 100.

  In the second embodiment described above, the maintenance server 30 </ b> A can acquire storage battery information from the plurality of power storage devices 13 in the apartment house 100, and thus can monitor the state of each storage battery 131 in the apartment house 100. Also, the storage battery information is transmitted from the plurality of power storage devices 13 at mutually different transmission timings, so that the storage server 30A and each power storage are compared with the case where the storage battery information is transmitted simultaneously from the plurality of power storage devices 13 in the apartment house 100. Communication traffic between the devices 13 is suppressed, and stable communication can be performed.

<Third Embodiment>
In the second embodiment described above, when the plurality of power storage devices 13 in the apartment house 100 starts charging the storage battery 131 at the same time, the power receiving unit 103 of the apartment house 100 is instantly loaded. In the present embodiment, an example will be described in which the storage battery 131 is charged by the constant current constant voltage method (CC-CV method) in each power storage device 13 so as to reduce the instantaneous load of the power receiving unit 103 in the apartment house 100.

  FIG. 7 is a block diagram illustrating a configuration example of the maintenance server in the present embodiment. As illustrated in FIG. 7, the control unit 31B of the maintenance server 30B includes a charge control unit 315 in addition to the configuration of the control unit 31A of the maintenance server 30A of the second embodiment. In response to an inquiry from each power storage device 13 in the apartment house 100, the charging control unit 315 transmits control information regarding charging of the storage battery 131 in the power storage device 13 to each power storage device 13 via the communication interface 32.

  FIG. 8 is a diagram schematically showing temporal changes in voltage and current due to constant current and constant voltage charging. As shown in FIG. 8, in the constant current constant voltage charging method, charging is performed with a constant current C1 indicated by a broken line until the voltage of the storage battery 131 reaches the predetermined voltage V1, and after reaching the predetermined voltage V1, charging is performed with the predetermined voltage V1. The charging method (first charging method) is to reduce the amount of current so that the predetermined voltage V1 is obtained. When a constant current C1 is input to the storage batteries 131 of all the power storage devices 13 in the apartment house 100 at the charging start time t0 shown in FIG. 8, an instantaneous load is applied to the power receiving unit 103 and the power is reduced.

  Each power storage device 13 starts charging at a time obtained by shifting a preset charge start time by a delay time set for each power storage device 13. Specifically, each power storage device 13 starts charging at a time obtained by shifting the charging start time by a delay time obtained by multiplying a predetermined time by a delay coefficient that is different for each power storage device 13. In the present embodiment, each power storage device 13 inquires of the maintenance server 30B about the delay coefficient of the power storage device 13 in advance, and acquires the delay coefficient from the maintenance server 30B.

  The charging control unit 315 sets the delay coefficient of the storage battery 131 so that the timing at which the constant current C1 is input to the storage battery 131 of each power storage device 13 in the apartment house 100, that is, the charging start timing of each storage battery 131 is delayed by a predetermined time. In response to an inquiry about the delay coefficient from the power storage device 13, the set delay coefficient is transmitted to the power storage device 13.

  As a result, the constant current C1 is not simultaneously input to the storage batteries 131 of the plurality of power storage devices 13 in the apartment house 100, so the instantaneous load on the power receiving unit 103 is reduced.

  Further, as shown in FIG. 9, the current amount is gradually increased so as to become a constant current C1 after a lapse of a predetermined time from the charging start time t0, and after reaching the constant current C1, a soft start for performing constant current and constant voltage charging. You may perform charge of a system (2nd charge method). When charging by the soft start method, since the amount of current that is simultaneously input to each power storage device 13 in the apartment 100 is smaller than in the case of FIG. 8, even if the charging start time of each power storage device 13 is the same, The instantaneous load on the power receiving unit 103 can be reduced.

  When charging by the soft start method, the charging control unit 315 performs a time t1 (hereinafter referred to as a constant current) until each power storage device 13 in the apartment house 100 reaches a constant current C1 from a preset charging start time t0. Time). Then, in response to an inquiry from each power storage device 13, the charge control unit 315 transmits a constant current arrival time t <b> 1 to each power storage device 13 as charge instruction information by the soft start method. Each power storage device 13 in the housing complex 100 acquires instruction information from the maintenance server 30B, and starts charging from the charging start time t0 so that the current amount becomes C1 at the constant current arrival time t1.

  In addition, when charging by the soft start method, the charging control unit 315 is configured such that the charging start timing of at least some of the power storage devices 13 of the plurality of power storage devices 13 in the apartment house 100 is different from the other power storage devices 13. A delay coefficient may be set for. That is, for example, some of the power storage devices 13 set the delay coefficient so as to be delayed by a certain time from the charging start time t0 of the other power storage devices 13. By configuring in this manner, the instantaneous load of the power receiving unit 103 can be further reduced as compared with the case where the charging start timings of the plurality of power storage devices 13 in the apartment house 100 are the same.

  In addition, when charging by the soft start method, the charging control unit 315 has a constant current different from that of the other power storage devices 13 for at least some of the power storage devices 13 of the plurality of power storage devices 13 in the apartment house 100. An arrival time may be set. That is, for example, the constant current arrival time t1 shown in FIG. 9 is set for some power storage devices 13 and the constant current arrival time t1 is set for other power storage devices 13 as shown in FIG. A long constant current arrival time t2 may be set. With this configuration, the rate of increase in current input to the storage batteries 131 of other power storage devices 13 is smaller than the rate of increase in current input to the storage batteries 131 of some power storage devices 13. The instantaneous load of the power receiving unit 103 can be reduced as compared with the case where the increasing rates of the input current amounts are all the same.

  In addition, when charging using the soft start method, the charging control unit 315 performs charging start timing of other power storage devices 13 for at least some of the power storage devices 13 of the plurality of power storage devices 13 in the apartment house 100. The delay coefficient may be set differently from the above, and a constant current arrival time different from the constant current arrival times of other power storage devices 13 may be set. That is, for example, for some of the power storage devices 13, a delay coefficient is set so as to be delayed by a predetermined time from the charging start time t 0 of the other power storage devices 13, and the constant current arrival time of the other power storage devices 13 is set. A longer constant current arrival time may be set. By comprising in this way, the charge start time in the some electrical storage apparatus 13 in the apartment house 100, and the increase rate of the electric current amount input into the storage battery 131 can be varied. Therefore, the instantaneous load of power reception unit 103 can be more reliably reduced as compared with the case where the charging start timing and the increase rate of the current amount in the plurality of power storage devices 13 are the same.

  In the third embodiment described above, the maintenance server 30 </ b> B may set at least one of the delay coefficient and the constant current arrival time for each power storage device 13 in the apartment house 100 as control information for charging in the power storage device 13. it can. Therefore, the instantaneous load of the power receiving unit 103 due to each power storage device 13 charging the storage battery 131 in the apartment house 100 is reduced, and stable power supply can be performed in the apartment house 100.

<Fourth embodiment>
In the present embodiment, an example in which an automatic inspection mode of the storage battery 131 is provided in the plurality of power storage devices 13 in the second embodiment will be described. The automatic inspection mode is a mode in which the storage battery 131 is completely discharged at a predetermined time and is fully charged after a predetermined time has elapsed to measure the capacity of the storage battery 131.

  Legal inspection is obligatory for electrical equipment such as the power receiving unit 103 in the apartment house 100. When the automatic inspection mode is operated on the legal inspection day, a power failure occurs during the legal inspection, so that power is not supplied from the power receiving unit 103 to each distribution board 16 and the storage battery 131 cannot be used.

  Therefore, in the present embodiment, control is performed so that the automatic inspection mode is operated in the plurality of power storage devices 13 in the apartment house 100 while avoiding the legal inspection date set for the apartment house 100.

  FIG. 11 is a block diagram illustrating a configuration example of the maintenance server in the present embodiment. The storage unit 33 of the maintenance server 30 </ b> C includes the user information DB 33 a as in the second embodiment, but information indicating the legal inspection date of the collective housing 100 (hereinafter referred to as legal) for the plurality of power storage devices 13 in the collective housing 100. This is different from the second embodiment in that inspection information) is stored. The legal inspection information is registered in advance in the user information DB 33a by the operator of the maintenance server 30C.

  In addition to the configuration of the control unit 31A of the maintenance server 30A of the second embodiment, the control unit 31C includes an automatic inspection control unit 316. The automatic inspection control unit 316 refers to the legal inspection information of each power storage device 13 in the apartment 100 in the user information DB 33a, and the legal inspection information indicated by the legal inspection information as an automatic inspection date for operating the automatic inspection mode in each power storage device 13 Set the date excluding the inspection date.

  In addition to the function of the notification unit 312A in the second embodiment, the notification unit 312C performs an automatic check control unit 316 on each power storage device 13 in response to an automatic check date inquiry from each power storage device 13 in the apartment 100. It has a function to notify the set automatic inspection date.

  Each power storage device 13 inquires of the maintenance server 30C about the automatic inspection date, and acquires automatic inspection information indicating the automatic inspection date from the maintenance server 30C. The inquiry about the automatic check date may be performed before a predetermined period of the automatic check date set in the power storage device 13 in advance, or may be performed when the storage battery information is transmitted. And the electrical storage apparatus 13 starts operation | movement of the automatic inspection mode of the storage battery 131 at the predetermined time of the day which the automatic inspection information acquired from the maintenance server 30C shows. FIG. 12 is a flowchart showing the operation of the power storage device 13 in the automatic inspection mode.

  The discharging unit (not shown) of the control unit 132 in the power storage device 13 starts discharging the storage battery 131 using the device groups 14 and 141 connected to the HEMS 10 or the MEMS 10a (step S101). The discharge unit of the control unit 132 continues to discharge the storage battery 131 until the storage battery 131 is completely discharged (step S102: NO).

  When the storage unit 131 is completely discharged (step S102: YES), the control unit 132 waits until a predetermined time elapses (step S103: NO). The predetermined time is preferably 1 hour or more and 24 hours or less.

  The charging unit (not shown) of the control unit 132 starts charging the storage battery 131 by the constant current constant voltage method after a predetermined time has elapsed (step S103: YES), and fully charges the storage battery 131 (step S104). Moreover, the control part 132 measures the electric current amount at the time of charge of the storage battery 131 by the capacity | capacitance measurement sensor 131b, and measures the charge capacity at the time of a full charge (step S105). When the charge capacity of the storage battery 131 is equal to or less than the preset charge capacity (step S106: YES), the control unit 132 maintains automatic inspection information indicating that the charge capacity is equal to or less than the preset charge capacity. It transmits to the server 30 and the operation | movement of automatic inspection mode is complete | finished (step S107). In step S106, when the charge capacity of the storage battery 131 is larger than the preset charge capacity (step S106: NO), the control unit 132 ends the operation in the automatic inspection mode.

  In the fourth embodiment described above, an automatic inspection date of the storage battery 131 of each power storage device 13 in the apartment house 100 can be set while avoiding the legal inspection date set for the apartment house 100. Therefore, the user can operate the device groups 14 and 141 using the power storage device 13 on the legal inspection date.

<Fifth Embodiment>
This embodiment demonstrates the example charged according to the charging / discharging capacity | capacitance of the storage battery 131 in the electrical storage apparatus 13 in 1st Embodiment mentioned above.

  In the present embodiment, the control unit 132 of the power storage device 13 measures and measures the charge capacity and discharge capacity of the storage battery 131 over a certain period based on the amount of current detected by the capacity measurement sensor 131b provided in the storage battery 131. The charge / discharge information indicating the charged capacity and the discharged capacity is transmitted to the maintenance server 30 via the communication interface 134.

  FIG. 13 is a block diagram illustrating a configuration example of the maintenance server in the present embodiment. In FIG. 13, the same code | symbol as 1st Embodiment is attached | subjected to the structure similar to 1st Embodiment. Hereinafter, a configuration different from the first embodiment will be described.

  The storage unit 33D is different from the storage unit 33 of the first embodiment in that it includes a billing information DB 33d in addition to the user information DB 33a, the storage battery information DB 33b, and the abnormality information DB 33c.

  The control unit 31D is different from the control unit 31 of the first embodiment in that it includes an acquisition unit 311D instead of the acquisition unit 311 and further includes a charge setting unit 31.

  The acquisition unit 311D acquires charge / discharge information from the power storage device 13 in addition to the storage battery information and the abnormality information via the communication interface 32. When acquiring / charging information from the power storage device 13, the acquiring unit 311 </ b> D stores the power storage device ID of the power storage device 13 and the charge / discharge information in association with each other in the charging information DB 33 d.

  The billing setting unit 317 calculates the billing amount for the charge capacity and discharge capacity of each power storage device 13 stored in the billing information DB 33d based on the billing conditions determined according to the charge capacity and discharge capacity. Then, the billing setting unit 317 reads a mail address corresponding to each power storage device 13 from the user information DB 33a, and transmits a mail indicating the calculated billing amount with the read mail address as a destination.

  A user who uses the power storage device 13 can receive a mail indicating the charge amount from the maintenance server 30D, and can confirm the charge amount according to the charge / discharge capacity of the storage battery 131, that is, the usage amount of the storage battery 131, for a certain period.

<Modification>
While the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and can be implemented by appropriately modifying the above-described embodiment without departing from the spirit thereof. Hereinafter, modifications of the present invention will be described.

  (1) In 1st Embodiment mentioned above, the maintenance server 30 may transmit the mail which shows the usable time limit of the storage battery 131 to the user's mail address corresponding to the electrical storage apparatus 13 which estimated the usable time limit. Further, the maintenance server 30 may display the user information corresponding to the power storage device 13 for which the usable time limit is estimated and the usable time limit on the display unit 34. The operator can inform the user of the replacement time of the storage battery 131 by telephone or the like with reference to the user information and the usable time limit displayed on the display unit 34.

  (2) In the second embodiment described above, the serial number of the power storage device 13 is changed. Although an example in which the time shifted by a certain time based on the numerical value included in is set as the transmission timing of the plurality of power storage devices 13 has been described, the transmission timing may be set as follows. For example, a random number generation program is stored in a plurality of power storage devices 13 and each time the power storage device 13 transmits storage battery information, the serial number of the power storage device 13 is stored in the random number generation program. The transmission timing may be set to a time obtained by taking a certain time from the numerical value obtained by inputting.

  (3) In 2nd Embodiment mentioned above, although the transmission timing of the storage battery information of the several electrical storage apparatus 13 demonstrated mutually different, the transmission timing of the storage battery information of the several electrical storage apparatus 13 may be the same. . In this case, since a plurality of storage battery information is transmitted simultaneously to the maintenance server 30A, a transmission error may occur. For this reason, when a transmission error occurs in the power storage device 13, the maintenance server 30 </ b> A sets the number of retransmissions according to the content of the transmission error, and instructs the power storage device 13 in which the transmission error has occurred to retransmit the storage battery information. Good. In addition, a communication amount monitoring unit that monitors the communication amount between the plurality of power storage devices 13 and the maintenance server 30A is provided, and each power storage device 13 is set according to the communication amount between the plurality of power storage devices 13 and the maintenance server 30A. May set a delay time when transmitting the storage battery information.

  (4) In addition, in the second embodiment described above, when an abnormality occurs in the storage battery 131 in the power storage device 13, after the abnormality information is transmitted from the power storage device 13 to the management device 11 or the MEMS management device 111, a predetermined time When the time has elapsed, the abnormality information may be transmitted from the power storage device 13 to the maintenance server 30A. In this case, the predetermined time may be set in advance for each power storage device 13 or a setting unit that sets a different time for each power storage device 13 for each power storage device 13 in the maintenance server 30A. You may comprise so that it may provide. Each power storage device 13 inquires the maintenance server 30A about the predetermined time, and acquires the predetermined time set by the maintenance server 30A in advance. When abnormality occurs in the storage battery 131 in the plurality of power storage devices 13 almost simultaneously, and abnormality information is transmitted from the plurality of power storage devices 13 to the maintenance server 30A, communication traffic between the maintenance server 30A and the plurality of power storage devices 13 is increased. In some cases, the abnormality information cannot be transmitted to the maintenance server 30A. In the present modification, the abnormality information is transmitted from the power storage device 13 at a different timing for each power storage device 13, and therefore the abnormality information can be reliably transmitted by the maintenance server 30A.

  (5) In the second embodiment described above, the example in which the maintenance server 30A monitors the plurality of power storage devices 13 provided in the apartment house 100 has been described. For example, a BEMS (Bill Energy Management System) that controls power of a building ) Or a plurality of power storage devices 13 connected to a factory energy management system (FEMS) that controls power of the factory may be monitored by the maintenance server 30A. In addition, a plurality of power storage devices 13 connected to a CEMS (Cluster or Community Energy Management System) that controls power in a specific area may be monitored by the maintenance server 30A.

  (6) In the above-described third embodiment, each power storage device 13 in the apartment house 100 has been described as an example in which charging is started by acquiring at least one of the delay coefficient and the current arrival time from the maintenance server 30. In the device 13, at least one of the delay coefficient and the current arrival time may be set in advance.

  (7) In the fourth embodiment described above, regardless of whether the automatic inspection date of the storage battery 131 of each power storage device 13 in the apartment house 100 is the same day as the legal inspection date for the apartment house 100, the legal inspection date is set. Although an example in which the automatic inspection date is set to avoid is described, it may be configured as follows. In the maintenance server 30C, the automatic check date set for each power storage device 13 is stored in advance in the user information DB 33a. When the legal inspection date is stored in the user information DB 33a by the operator, the maintenance server 30C determines whether the automatic inspection date and the legal inspection date of each power storage device 13 stored in the user information DB 33a are the same day. If it is determined that the date is the same day, the automatic check date of the power storage device 13 is set to a date different from the legal check date. In response to the inquiry from the power storage device 13, the maintenance server 30 </ b> C transmits automatic check information indicating the automatic check date corresponding to the power storage device 13 to the power storage device 13.

  (8) In the fourth embodiment described above, the maintenance server 30C sets an automatic inspection date for each power storage device 13 in the automatic inspection control unit 316, and each power storage device from the user information DB 33a by the notification unit 312A. A mail indicating the set automatic inspection date may be transmitted with the mail address corresponding to 13 as the destination.

  (9) In the above-described fourth embodiment, the example in which the storage battery 131 is completely discharged by the device groups 14 and 141 during the automatic inspection mode of the power storage device 13 has been described. However, the discharge that discharges the storage battery 131 during the automatic inspection mode is described. Means may be provided in the power storage device 13. In this case, the power storage device 13 measures the discharge capacity based on the load of the discharge means measured in advance, and determines whether or not the discharge characteristics of the storage battery 131 are appropriate based on the complete discharge time and the discharge capacity. May be. Furthermore, the charge capacity of the storage battery 131 after complete discharge may be measured to determine whether the charge / discharge characteristics of the storage battery 131 are appropriate based on the discharge capacity and the charge capacity. Alternatively, the charged capacity and the discharged capacity after the automatic inspection may be transmitted from the power storage device 13 to the maintenance server 30C, and the maintenance server 30C may determine whether the charge / discharge characteristics of the storage battery 131 are appropriate.

  (10) The power storage device of the first embodiment described above may have an automatic inspection mode similar to that of the power storage device of the fourth embodiment.

  (11) You may combine the aspect of 4th Embodiment with the energy management system of 3rd Embodiment mentioned above. Moreover, you may combine the aspect of 5th Embodiment with the energy management system of 2nd Embodiment mentioned above to 4th Embodiment.

  (12) In the first to fifth embodiments described above, the maintenance server has described an example of acquiring storage battery information including the temperature, capacity, and voltage value of the storage battery 131 from the power storage device 13. Alternatively, one or two of the temperature, the capacity, and the voltage value may be acquired from the power storage device 13.

  (13) Although the energy management system illustrated in the first to fifth embodiments has been described as including the management device 11 or the MEMS management device 111, the management device 11 and the MEMS management device 111 are included. It does not have to be.

  (14) Although the energy management system illustrated in the first to fifth embodiments has been described as including the HEMS management server 20 or the HEMS / MEMS management server 21, the HEMS management server 20 and the HEMS / MEMS management are described. The server 21 may not be included.

  (15) In the first embodiment described above, an information terminal such as a PC (Personal Computer) may be connected to the maintenance server 30 and the power storage device 13 via the second communication path. The information terminal is used for the initial setting of the power storage device 13 when the power storage device 13 is connected to the maintenance server 30, the setting change of the power storage device 13, and the like, and the exchange of data between the maintenance server 30 and the information terminal. .

  (16) In the first to fifth embodiments described above, the maintenance servers 30, 30A to 30D and the HEMS management server 20 or the HEMS / MEMS management server 21 are each configured by independent hardware. Although described, these functions may be logically separated in the same hardware.

  (17) In the first to fourth embodiments described above, each information (transmission frequency, usable period, delay coefficient, constant current arrival time) from the maintenance server to the power storage device in response to an inquiry from the power storage device. However, when the second communication path connecting the maintenance server and the power storage device is configured by a closed network such as a LAN, an intranet, a dedicated line, etc., the maintenance server May transmit each information directly to the power storage device. Thus, if the maintenance server can directly access each power storage device installed in the predetermined area and remotely control the power storage device, the power control in the predetermined area can be made more efficient.

  (18) Although examples of the energy management system of the present invention have been described in the first to fifth embodiments, the energy management system of the present invention only needs to include at least a power storage device and a maintenance server. The energy management system of the present invention can be realized by connecting the power storage device and the maintenance server to an environment where HEMS, MEMS, or the like is already installed.

  (19) As an example of the energy management system of the present invention, the first to fifth embodiments and the above-described modification have been described. However, the maintenance server in the energy management system of the present invention includes at least an acquisition unit, a storage unit, The maintenance server performs the operation of each step shown in FIG. That is, the maintenance server sequentially acquires the storage battery information regarding the storage battery 131 in the power storage device 13 from the power storage device 13 connected via the communication network 2 by the acquisition unit at a predetermined timing (step S10), and is acquired by the acquisition unit. The storage battery information is stored in the storage unit (step S20). And a maintenance server monitors the state of the storage battery 131 based on the storage battery information memorize | stored in the memory | storage part by the monitoring part (step S30). Note that a program for causing a computer to execute the operation of the maintenance server and a computer-readable recording medium that records the program are included in the present invention. The program is not limited to be provided by a recording medium, but may be provided via a communication network such as an electric communication line, a wireless or wired communication line, or the Internet network.

  DESCRIPTION OF SYMBOLS 1,1A ... Energy management system, 2 ... Communication network, 3 ... System electric power, 10 ... HEMS, 10a ... MEMS, 11 ... Management apparatus, 12 ... HUB, 13 ... Power storage device, 14, 141 ... Equipment group, 15 ... Router , 16 ... Distribution board, 20 ... Management server, 21 ... HEMS / MEMS management server, 30, 30A-30D ... Maintenance server, 31, 31A-31D, 132 ... Control unit, 32, 134 ... Communication interface, 33, 33D ... Storage unit, 34 ... Display unit, 35 ... Operation unit, 131 ... Storage battery, 131a ... Temperature sensor, 131b ... Capacity measurement sensor, 131c ... Voltage detection sensor, 133 ... Inverter, 135 ... Notification unit, 311, 311A ... Acquisition unit , 312, 312A ... notification unit, 313, 313A ... monitoring unit, 315 ... charge control unit, 316 ... automatic inspection control unit, 317 ... charge setting unit

Claims (18)

  1. A power storage device having a storage battery provided in a predetermined area and connected via a first communication path to a management device that controls power in the predetermined area;
    A maintenance server connected to the power storage device via a second communication path different from the first communication path without going through the management device;
    The power storage device sequentially transmits storage battery information related to the storage battery in the power storage device to the maintenance server at a predetermined timing,
    The maintenance server
    An acquisition unit for acquiring the storage battery information from the power storage device;
    A storage unit for storing the storage battery information acquired by the acquisition unit;
    A monitoring unit that monitors a state of the storage battery in the power storage device based on the storage battery information stored in the storage unit;
    Including energy management system.
  2. The energy management system according to claim 1,
    The storage battery information is an energy management system including at least one of a temperature, a voltage, and a capacity of the storage battery.
  3. The energy management system according to claim 1 or 2,
    The power storage device further transmits abnormality information indicating abnormality of the storage battery in the power storage device to the management device, and transmits the abnormality information to the maintenance server,
    The acquisition unit is an energy management system that further acquires the abnormality information from the power storage device.
  4. The energy management system according to claim 3,
    The power storage device acquires device information indicating a state of a device connected to the management device via the first communication path, and transmits the device information to the maintenance server via the second communication path,
    The acquisition unit is an energy management system that further acquires the device information from the power storage device.
  5. In the energy management system according to any one of claims 1 to 4,
    The monitoring unit predicts a usable time limit of the storage battery in the power storage device based on the storage battery information of the power storage device stored in the storage unit,
    The maintenance server further includes a notification unit that notifies the replacement of the storage battery based on a prediction result of the monitoring unit.
  6. In the energy management system according to any one of claims 1 to 5,
    The power storage device further transmits, to the maintenance server, the measurement result of the charge / discharge capacity of the storage battery in the power storage device over a certain period,
    The maintenance server further includes:
    An energy management system, comprising: a charge setting unit that acquires the measurement result from the power storage device and sets a charge amount corresponding to the acquired measurement result for the power storage device.
  7.   The energy management system according to any one of claims 1 to 6, further comprising the management device.
  8.   The energy management system according to any one of claims 1 to 7, further comprising: a management server connected to the management device via a third communication path different from the first communication path and the second communication path. An energy management system comprising:
  9.   9. The energy management system according to claim 1, further comprising information provided in the predetermined area and connected to the maintenance server and the power storage device via the second communication path. An energy management system comprising a terminal.
  10. In the energy management system according to any one of claims 1 to 9,
    The power storage system has an inspection mode in which the storage battery has a check mode in which the storage battery is fully charged after a predetermined time has elapsed after the storage battery is completely discharged and the capacity of the storage battery is measured.
  11. In the energy management system according to any one of claims 1 to 10,
    In the predetermined area, a plurality of power storage devices connected to the plurality of management devices via the first communication path are installed,
    The maintenance server is connected to each of the plurality of power storage devices via the second communication path without going through each of the plurality of management devices.
    The storage unit stores a plurality of the storage battery information of the plurality of power storage devices for each power storage device,
    The said monitoring part is an energy management system which monitors the state of the said storage battery in the said electrical storage apparatus for every said electrical storage apparatus based on the said storage battery information memorize | stored in the said memory | storage part.
  12.   12. The energy management system according to claim 11, wherein the predetermined area is a predetermined specific area.
  13. The energy management system according to claim 11,
    The predetermined area is a housing complex in which a plurality of dwelling units are gathered.
    An energy management system in which the power storage device and the management device are installed in each of the plurality of dwelling units.
  14. The energy management system according to claim 13,
    Each of the plurality of power storage devices has an inspection mode in which the storage battery in the power storage device is completely discharged, the storage battery is fully charged after a predetermined time, and the capacity of the storage battery is measured.
    The storage unit stores a legal inspection date of electrical equipment in the apartment house,
    The maintenance server further includes an inspection mode control unit that sets an operation timing of the inspection mode while avoiding the legal inspection date stored in the storage unit for the plurality of power storage devices.
  15. In the energy management system according to any one of claims 11 to 14,
    The energy storage system, wherein the plurality of power storage devices transmit the storage battery information to the maintenance server at different timings.
  16. In the energy management system according to any one of claims 11 to 15,
    Each of the plurality of power storage devices includes a charging unit that charges the storage battery in the power storage device,
    The plurality of charging units of the plurality of power storage devices perform charging using at least one of the first charging method and the second charging method,
    The first charging method is a charging method in which the plurality of charging units are charged at different timings based on a charging start time set in advance for the plurality of power storage devices,
    The second charging method is an energy management system that is a charging method that starts charging by a soft start method.
  17. The energy management system according to any one of claims 11 to 16,
    Each of the plurality of power storage devices transmits the abnormality information to the maintenance server when a predetermined time elapses after transmitting abnormality information indicating abnormality of the power storage device to the management device,
    The maintenance server further includes a setting unit that sets the predetermined time for each power storage device.
  18. A program for causing a computer to execute the operation of the maintenance server according to claim 1,
    An acquisition step of sequentially acquiring the storage battery information from the power storage device at a predetermined timing;
    A storage step of storing the storage battery information acquired in the acquisition step;
    A monitoring step of monitoring a state of the storage battery in the power storage device based on the storage battery information stored in the storage step;
    A program that causes a computer to execute.
JP2014036772A 2014-02-27 2014-02-27 Energy management system and program Pending JP2015162967A (en)

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