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公开(公告)号：US10056757B2
公开(公告)日：2018-08-21
申请号：US15021408
申请日：2014-09-11
Applicant: NEC Corporation
Inventor： Hisato Sakuma , Koji Kudo , Hitoshi Yano , Ryo Hashimoto , Eisuke Saneyoshi , Takahiro Toizumi , Kosuke Homma , Alexander Viehweider , Katsuya Suzuki
CPC classification number: H02J3/32 , H02J7/0047 , H02J7/0068 , H02J7/007 , H02J13/0006 , H02J13/0017 , Y02B70/3266 , Y02E60/722 , Y02E70/30 , Y04S10/14 , Y04S20/242
Abstract: A control device for controlling the operation of a supply and demand adjustment device that is connected to a power grid includes: detection means for detecting the state of the supply and demand adjustment device; communication means for transmitting the detection result of the detection means to an external device and receiving from the external device operation control information for controlling the operation of the supply and demand adjustment device; comprehension means for receiving and comprehending an adjustment power amount transmitted by bidirectional communication or one-way communication; and control means for, based on the adjustment power amount and the operation control information, controlling the operation of the supply and demand adjustment device.
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公开(公告)号：US10003197B2
公开(公告)日：2018-06-19
申请号：US15129114
申请日：2014-03-27
Applicant: NEC CORPORATION
Inventor： Alexander Viehweider , Koji Kudo
CPC classification number: H02J3/382 , H02J3/00 , H02J3/38 , H02J3/381 , H02J3/383 , H02J3/386 , H02J7/0068 , H02J7/345 , H02J2003/003
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.
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公开(公告)号：US09859735B2
公开(公告)日：2018-01-02
申请号：US14771416
申请日：2014-02-28
Applicant: NEC Corporation
Inventor： Hisato Sakuma , Koji Kudo , Hitoshi Yano , Kazuhiko Aoki , Yoshiho Yanagita , Yuma Iwasaki , Ryo Hashimoto , Eisuke Saneyoshi , Takahiro Toizumi
CPC classification number: H02J7/0063 , G06Q50/06 , H02J3/14 , H02J3/24 , H02J3/32 , H02J7/007 , H02J2007/0067 , Y02B70/3225 , Y04S10/54 , Y04S20/222
Abstract: A supply and demand adjustment system, that utilizes characteristics of a supply-and-demand adjustment apparatuses and precisely matches the total supply-and-demand adjustment amount with a required adjustment amount, when adjusting supply and demand, is provided. The supply and demand adjustment system that includes a central control apparatus and one or more supply-and-demand adjustment apparatuses, the central control apparatus including, supply-and-demand-adjustment-apparatus-state-collection unit that collects information with regard to a state of each supply-and-demand adjustment apparatus, allocation band calculation unit that calculates a frequency band and an intensity of a fluctuation of supply and demand adjustment to be allocated to the supply-and-demand adjustment apparatus based on the information of the state, and a supply-and-demand-adjustment-amount-calculation-unit that calculates a supply-and-demand adjustment amount for each supply-and-demand adjustment apparatus based on the frequency band and the intensity of the fluctuation of supply and demand adjustment to be allocated to the supply-and-demand adjustment apparatus.
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公开(公告)号：US09849803B2
公开(公告)日：2017-12-26
申请号：US14797837
申请日：2015-07-13
Applicant: NEC Corporation
Inventor： Yukiko Morioka , Hisato Sakuma , Koji Kudo
CPC classification number: B60L11/1862 , H01M10/441 , H01M10/482 , H02J3/383 , H02J3/386 , H02J7/0014 , H02J7/0016 , H02J7/0021 , H02J7/007 , H02J7/34 , Y02E10/563 , Y02E10/763 , Y10T307/32
Abstract: An energy system includes an electric device that consumes electric power, a plurality of storage batteries that supplies stored electric power to the electric device, each of the storage batteries being chargeable and dischargeable under the control of an external device, and an information processor that divides the plurality of storage batteries into families which includes the storage batteries having similar charging and discharging characteristics, and that controls the timings to charge and discharge the storage batteries in the family.
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25.发明授权公开(公告)号：US09843203B2
公开(公告)日：2017-12-12
申请号：US15176531
申请日：2016-06-08
Applicant: NEC Corporation
Inventor： Koji Kudo , Hisato Sakuma , Hitoshi Yano
CPC classification number: H02J7/0021 , H02J3/24 , H02J3/32 , H02J3/383 , H02J3/386 , H02J3/46 , H02J7/00 , H02J7/007 , Y02E10/563 , Y02E10/566 , Y02E10/763 , Y02E70/30
Abstract: A battery control system, which controls operation of a plurality of batteries connected to an electric power system, the battery control system comprises: detecting means that detects a delay period of each battery of said plurality of batteries which represents a period that has elapsed after the battery control system supplies said each battery with an execution command for charging or discharging said each battery until said each battery operates according to the execution command; measuring means that measures a frequency rate-of-change of electric power of the electric power system; selecting means that selects adjustment batteries for adjusting the electric power of the electric power system from said plurality of batteries based on the frequency rate-of-change and the delay period of said each battery of said plurality of batteries; and command means for supplying the execution command to the adjustment batteries.
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Patent Agency Ranking
26.发明授权公开(公告)号：US10855080B2
公开(公告)日：2020-12-01
申请号：US16080385
申请日：2016-02-29
Applicant: NEC Corporation
Inventor： Koji Kudo
Abstract: To efficiently utilize power generated by a renewable energy power source performing output suppression, Provided is a control device (10) including: a first calculation unit (181) that calculates a total excess output in a plurality of power generation devices based on power generation relevant information and an upper limit power generation output in each of the plurality of power generation devices; a second calculation unit (182) that calculates residual excess power information based on the total excess output and storage relevant information in a plurality of energy storage devices absorbing the total excess output; and a transmission unit (191) that transmits power generation suppression control information to each of the plurality of power generation devices based on the residual excess power information.
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27.发明授权公开(公告)号：US10734812B2
公开(公告)日：2020-08-04
申请号：US15735657
申请日：2015-07-08
Applicant: NEC Corporation
Inventor： Alexander Viehweider , Koji Kudo
IPC: G05B19/042 , H02J3/38 , H02J3/32 , H02J3/00 , G06Q50/06
Abstract: A renewable power system according to the exemplary embodiment includes a renewable power plant (121), a controllable plant (123) and an energy management system (128) which keeps an energy schedule within a certain tolerance in the next k (an integer greater than or equal to 1) steps by using a method that includes an optimization algorithm for a total power output shape within a step, and schedule changing algorithm for changing the energy schedule after the next k steps to keep a needed capacity of the plant regarding power and energy small. By keeping the energy schedule within a certain range for a renewable power plant combined with controllable plant, it is possible to keep the needed power and energy capacity of controllable plant small and to guarantee favorable total power output shape.
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公开(公告)号：US10680445B2
公开(公告)日：2020-06-09
申请号：US15555413
申请日：2015-03-04
Applicant: NEC Corporation
Inventor： Koji Kudo , Noriaki Kobayashi , Kosuke Homma , Katsuya Suzuki
Abstract: A power generation control device is provided with: a communication unit that receives output control information determined on the basis of a first index that relates to the output state at a power generation device group and a second index that relates to the output state at a predetermined power generation device; and a control unit that controls the output of the predetermined power generation device on the basis of the output control information.
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29.发明授权公开(公告)号：US10401403B2
公开(公告)日：2019-09-03
申请号：US15300512
申请日：2015-01-23
Applicant: NEC Corporation
Inventor： Eisuke Saneyoshi , Koji Kudo , Ryo Hashimoto , Kosuke Homma , Takahiro Toizumi
IPC: G01R21/133 , G01R21/06
Abstract: A monitoring device (10) includes a unit-specific waveform data acquisition unit (11) that acquires waveform data in a unit in which electrical devices are installed; a first inference unit (13) that infers change in operation states of at least some of the electrical devices based on a first monitoring difference group including at least one of at least one kind of feature amount extracted from waveform data of a difference between waveform data of a first timing and waveform data of a second timing in the waveform data, and a differences of at least one kind of feature amounts extracted from the waveform data of the first timing and the waveform data of the second timing, and training difference information regarding a difference between a first operation state and a second operation state of each of the electrical devices; and a second inference unit (14) that infers an operation state of each of the electrical devices based on an inference result of the first inference unit (13).
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公开(公告)号：US10209729B2
公开(公告)日：2019-02-19
申请号：US15306369
申请日：2015-03-31
Applicant: NEC Corporation
Inventor： Ryo Hashimoto , Hitoshi Yano , Koji Kudo , Hisato Sakuma
IPC: G05D3/12 , G05D5/00 , G05D9/00 , G05D11/00 , G05D17/00 , G05F1/66 , H02J3/14 , H02J13/00 , F24J2/00
Abstract: Lower-level information processing devices (20-1 to 20-n) obtain parameters used for estimating power consumption in accordance with the statuses of electric devices (30-1 to 30-n), estimate the power consumption of the electric devices (30-1 to 30-n) on the basis of the parameters, and transmits the estimated value of the estimated power consumption to an upper-level information processing device (10). The upper-level information processing device (10) determines an assignment of distribution of supply and demand on the basis of the power supply-demand capacity in a predetermined power network and the estimated value of the power consumption and transmits the determined assignments to the lower-level information processing devices (20-1 to 20-n). The lower-level information processing devices (20-1 to 20-n) controls the operations of the electric devices (30-1 to 30-n) on the basis of the assignment of distribution of supply and demand.
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