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    MONITORING DEVICE, MONITORING SYSTEM, MONITORING METHOD, AND NON-TRANSITORY STORAGE MEDIUM
    3.
    发明申请
    MONITORING DEVICE, MONITORING SYSTEM, MONITORING METHOD, AND NON-TRANSITORY STORAGE MEDIUM 审中-公开

    公开(公告)号：US20170176502A1

    公开(公告)日：2017-06-22

    申请号：US15300496

    申请日：2015-01-23

    Applicant: NEC Corporation

    Inventor： Eisuke SANEYOSHI ,  Ryo HASHIMOTO ,  Kosuke HOMMA ,  Koji KUDO ,  Takahiro TOIZUMI

    IPC: G01R21/133 ,  G01R21/06

    CPC classification number: G01R21/133 ,  G01R21/06

    Abstract: A monitoring device (10) includes: a unit-specific waveform data acquisition unit (12) that acquires unit-specific monitoring waveform data which is waveform data of at least one among total current consumption, a total input voltage, and total power consumption in a unit in which monitoring target electrical devices are installed; a first inference unit (13) that infers operation states of at least some of the monitoring target electrical devices based on a 1st feature amount group including at least one kind of feature amount extracted from the unit-specific monitoring waveform data, and a training feature amount which is a feature amount of each of the monitoring target electrical devices in a predetermined operation state; and a second inference unit (14) that infers the operation states of some of the monitoring target electrical devices based on a 2nd feature amount group including at least one kind of feature amount extracted from the unit-specific monitoring waveform data, and different from the 1st feature amount group and the training feature amount.

    ENERGY MANAGEMENT METHOD AND SYSTEM FOR ENERGY SUPPLY SYSTEM
    4.
    发明申请
    ENERGY MANAGEMENT METHOD AND SYSTEM FOR ENERGY SUPPLY SYSTEM 有权

    公开(公告)号：US20170117710A1

    公开(公告)日：2017-04-27

    申请号：US15129114

    申请日：2014-03-27

    Applicant: NEC CORPORATION

    Inventor： Alexander VIEHWEIDER ,  Koji KUDO

    IPC: H02J3/38 ,  H02J7/00

    CPC classification number: H02J3/382 ,  H02J3/00 ,  H02J3/38 ,  H02J3/381 ,  H02J3/383 ,  H02J3/386 ,  H02J7/0068 ,  H02J7/345 ,  H02J2003/003 ,  Y04S10/54

    Abstract: An energy management method for an energy supply system which includes at least an energy storage, a load and a generator with power dependent efficiency is provided. The method includes: calculating two time variant parameters indicating a discharge lower limit and an upper charge limit, respectively, of the energy storage, based on optimization using different kinds of prediction; and controlling, in a real time manner, charging and discharging of the energy storage and operation of the generator, with a certain priorities given to various power sources, such that state of charge of the energy storage is controlled within a region between the discharge lower limit and the upper charge limit. When a grid power is available, blackout duration probability function is predicted and used to calculate the discharge lower limit and the upper charge limit.

    STORAGE CELL CONTROL SYSTEM, STORAGE CELL CONTROL METHOD, AND RECORDING MEDIUM
    6.
    发明申请
    STORAGE CELL CONTROL SYSTEM, STORAGE CELL CONTROL METHOD, AND RECORDING MEDIUM 审中-公开

    公开(公告)号：US20180269541A1

    公开(公告)日：2018-09-20

    申请号：US15542511

    申请日：2016-01-15

    Applicant: NEC Corporation

    Inventor： Kenji KOBAYASHI ,  Masato YANO ,  Suguru WATANABE ,  Hisato SAKUMA ,  Koji KUDO

    IPC: H01M10/44 ,  H01M10/42 ,  H01M10/0525 ,  H02J7/00

    CPC classification number: H01M10/441 ,  H01M10/0525 ,  H01M10/425 ,  H01M10/482 ,  H01M2010/4278 ,  H01M2220/20 ,  H02J3/32 ,  H02J7/0021 ,  H02J7/0047 ,  H02J7/007 ,  H02J2007/005

    Abstract: A storage cell control system configured to perform charge/discharge control for a plurality of storage cells under control based on a power adjustment request from a power system includes: a power storage capacity calculating means configured to calculate a current power storage capacity of the storage cell based on storage cell information of the storage cell; a target power storage capacity setting means configured to set a target power storage capacity in stopping an operation of the storage cell; a capacity degradation speed calculating means configured to calculate a current capacity degradation speed and a target capacity degradation speed with respect to each power storage capacity by applying the current power storage capacity and the target power storage capacity to capacity degradation speed correlation information set in advance; and a power distributing means configured to distribute power to the plurality of storage cells in such a manner that when it is assumed that t is an elapsed time from start of operation, a capacity degradation amount DSOCvaried(t) is a time integral value of a capacity degradation speed in a case where the capacity degradation speed varies according to a power storage capacity, and a capacity degradation amount DSOCfixed(t) is a time integral value of a capacity degradation speed in a case where the capacity degradation speed is fixed regardless of a power storage capacity, a capacity degradation amount minimization condition: a capacity degradation amount DSOCvaried(t)≤a capacity degradation amount DSOCfixed(t) is satisfied.

    ENERGY MANAGEMENT APPARATUS, ENERGY MANAGEMENT METHOD AND PROGRAM RECORDING MEDIUM
    8.
    发明申请
    ENERGY MANAGEMENT APPARATUS, ENERGY MANAGEMENT METHOD AND PROGRAM RECORDING MEDIUM 审中-公开

    公开(公告)号：US20170264135A1

    公开(公告)日：2017-09-14

    申请号：US15529132

    申请日：2015-11-18

    Applicant: NEC CORPORATION

    Inventor： Ryo HASHIMOTO ,  Hitoshi YANO ,  Hisato SAKUMA ,  Koji KUDO ,  Alexander VIEHWEIDER

    IPC: H02J7/04 ,  H02J7/00 ,  H02J3/32

    CPC classification number: H02J7/041 ,  G06Q50/06 ,  H02J3/32 ,  H02J7/007 ,  H02J9/062 ,  Y02B10/72 ,  Y02E40/76 ,  Y04S10/545

    Abstract: An object of the present invention is to set a demand schedule for performing highly efficient demand-supply adjustment of electric power, to deal with electric power demand. To achieve the object, an energy management apparatus of the present invention is an energy management apparatus for performing demand-supply adjustment of electric power by use of a plurality of chargeable and dischargeable energy storage devices, comprising: a plan management means for acquiring a variation of a load of an electric power grid predicted during a target period; and a demand variation setting means for setting a value of an operational electric energy for charging and discharging of each of the plurality of energy storage devices to be a value corresponding to a halt state or a value between a minimum rated output and a maximum rated output, in a manner to make a difference between maximum and minimum values of the load be smaller than a difference that is predicted, by operation of the plurality of energy storage devices.

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