公开(公告)号：US20200274363A1

公开(公告)日：2020-08-27

申请号：US16788561

申请日：2020-02-12

Applicant: NEC CORPORATION

Inventor： Koji KUDO

IPC: H02J3/32 ,  H02J13/00 ,  G06Q50/06 ,  H02J3/00 ,  H02J7/00

Abstract: A power storage system is configured to carry out a plurality of services having different responses in a concurrent-multiuse manner with a storage battery under control of a control device. The control device is configured to calculate a value of charge/discharge power for each service and to thereby produce a summation of charge/discharge power for the plurality of services according to an upper-limit value of charge/discharge power for each service which is set by a host device. The control device is further configured to control the storage battery to charge or discharge power according to the summation of charge/discharge power.

公开(公告)号：US20190123561A1

公开(公告)日：2019-04-25

申请号：US16098211

申请日：2016-11-24

Applicant: NEC Corporation

Inventor： Koji KUDO

IPC: H02J3/32 ,  H02J3/46 ,  H02J13/00 ,  G05B19/042

Abstract: A control apparatus includes an optimization processing unit which individually calculates a sharing ratio of each of a plurality of energy storage apparatuses to adjusted total power of which demand and supply is adjusted by the energy storage apparatuses on the basis of state information of the corresponding energy storage apparatus, a calculation unit which calculates shared power in at least one energy storage apparatus using demand and supply adjustment information relating to the adjusted total power in the plurality of energy storage apparatuses and the sharing ratio of the at least one energy storage apparatus, and a communication unit which transmits the shared power to the corresponding energy storage apparatus.

公开(公告)号：US20180366951A1

公开(公告)日：2018-12-20

申请号：US15735657

申请日：2015-07-08

Applicant: NEC Corporation

Inventor： Alexander VIEHWEIDER ,  Koji KUDO

IPC: H02J3/38 ,  G05B19/042 ,  H02J3/32

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.

公开(公告)号：US20170371073A1

公开(公告)日：2017-12-28

申请号：US15543435

申请日：2015-11-18

Applicant: NEC Corporation

Inventor： Katsuya SUZUKI ,  Kosuke HOMMA ,  Koji KUDO

IPC: G01W1/00 ,  G01R21/133 ,  G01J1/42 ,  G01P5/00 ,  G06N99/00 ,  G06N7/00

CPC classification number: G01W1/00 ,  G01J1/42 ,  G01J2001/4266 ,  G01P5/00 ,  G01R21/133 ,  G01W1/10 ,  G06N3/08 ,  G06N7/005 ,  G06N20/00 ,  G06N20/10 ,  H02J3/382 ,  H02J2003/003 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

Abstract: An object of the present invention is to improve the accuracy of prediction in a technique for predicting natural energy power generation amount, solar radiation amount or wind speed by using a statistical method based on machine learning. In order to achieve this object, provided is a prediction apparatus (10) including a feature value extraction unit (13) that extracts a feature value being a variation in time series from meteorological data from m (m is 2 or more) hours before a target time to the target time, and an estimation unit (first estimation unit (14)) that estimates a natural energy power generation amount, a solar radiation amount, or a wind speed at the target time based on the feature values over plural days.

公开(公告)号：US20170317507A1

公开(公告)日：2017-11-02

申请号：US15521267

申请日：2015-10-08

Applicant: NEC Corporation

Inventor： Koji KUDO

IPC: H02J7/00

CPC classification number: H02J7/0014 ,  H02J3/32 ,  H02J7/0021 ,  H02J7/007

Abstract: This control device includes: a reception unit that receives information that indicates characteristics of a power supply/demand adjustment process; and a determination unit that, on the basis of the information that indicates the characteristics of the power supply/demand adjustment process, determines as usage information to be used for the adjustment process the state of a power grid or an index that relates to an adjustment power amount that was received from a predetermined device.

公开(公告)号：US20160276859A1

公开(公告)日：2016-09-22

申请号：US14374958

申请日：2014-02-06

Applicant: NEC Corporation

Inventor： Koji KUDO ,  Hisato SAKUMA

IPC: H02J7/00 ,  H02J7/35

CPC classification number: H02J7/0068 ,  H02J3/32 ,  H02J3/382 ,  H02J7/0047 ,  H02J7/007 ,  H02J7/35 ,  H02J2007/005 ,  Y02E70/30

Abstract: A battery control device controlling an operation of a battery connected to a power system includes detection means that detects battery-related information showing a state of the battery, or a state of an interconnection point of the power system and the battery, first communication means that transmits a detection result of the detection means to an external device, and executes reception processing to receive operation control information to control the operation of the battery from the external device at a predetermined time interval, and control means that executes battery operation control processing to control the operation of the battery based on a state of the power system and based on the operation control information received by the first communication means, at a time interval shorter than the predetermined time interval.

Abstract translation: 控制连接到电力系统的电池的操作的电池控制装置包括检测装置，其检测表示电池的状态的电池相关信息或电力系统和电池的互连点的状态，第一通信装置 将检测装置的检测结果发送到外部设备，并且执行接收处理以接收操作控制信息，以预定时间间隔从外部设备控制电池的操作;以及控制装置，其执行电池操作控制处理以控制 基于电力系统的状态并基于由第一通信装置接收的操作控制信息，以比预定时间间隔短的时间间隔的电池的操作。

公开(公告)号：US20160226261A1

公开(公告)日：2016-08-04

申请号：US14917422

申请日：2014-08-26

Applicant: NEC CORPORATION

Inventor： Hitoshi YANO ,  Ryo HASHIMOTO ,  Hisato SAKUMA ,  Koji KUDO ,  Eisuke SANEYOSHI ,  Takahiro TOIZUMI

IPC: H02J7/00

CPC classification number: H02J7/007 ,  B60L11/1816 ,  B60L11/1824 ,  B60L11/1842 ,  B60L11/1844 ,  B60L11/1846 ,  B60L11/1861 ,  B60L2240/70 ,  G06Q30/04 ,  G06Q50/06 ,  H02J3/28 ,  H02J7/0021 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7072 ,  Y02T10/7291 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S10/126 ,  Y04S30/14 ,  Y04S50/12

Abstract: Acquisition unit 184 acquires an adjustment period in which power supply and demand is adjusted, and adjustment power which is power to be adjusted in the adjustment period. Adjustment target determining unit 185 requests an adjustment target storage battery to be charged or discharged at a predetermined electricity rate in the adjustment period and determines, based on the adjustment power, adjustment target storage batteries from among the storage batteries that have responded to the request. In the adjustment period, control unit 186 causes the adjustment target storage batteries to charge or discharge electricity at the predetermined electricity rate and causes a non-adjusted storage battery that is different from the adjustment target storage battery to charge or discharge electricity at an electricity rate different from the predetermined electricity rate.

Abstract translation: 采集单元184获取调整供电和需求的调整周期，以及在调整周期中调整功率的调整功率。 调整对象确定单元185在调整期间中以调整用电量请求调整对象蓄电池进行充电或放电，根据该调整功率，根据该请求，判定蓄电池中的调节对象蓄电池。 在调整期间，控制部186使调整对象蓄电池以规定的电力进行充电或放电，使与调节对象蓄电池不同的未调整蓄电池以电费率进行充放电 与预定电费不同。

公开(公告)号：US20190074709A1

公开(公告)日：2019-03-07

申请号：US16082311

申请日：2016-03-08

Applicant: NEC Corporation

Inventor： Kosuke HOMMA ,  Koji KUDO ,  Ryo HASHIMOTO

IPC: H02J7/34 ,  H02J3/38 ,  G05B13/04

Abstract: A problem to be solved is to optimize a storage schedule in which changes in power (W) stored in an energy storage apparatus with time are determined, and an output upper limit (W) of a renewable energy power supply. In order to solve the problem, the invention provides a power control apparatus (10) that stores in an energy storage apparatus an amount of power exceeding an output upper limit instruction value (W), which is determined by an electricity company in power (W) generated by a power generation apparatus, the power control apparatus (10) including a decision unit (11) that decides a storage schedule in which changes in the power (W) to be stored in the energy storage apparatus with time within a predetermined period of time are determined, on the basis of prediction data on changes in the power (W) generated by the power generation apparatus with time within the predetermined period of time and values of various types of power classified on the basis of the output upper limit instruction value (W) within the predetermined period of time.

公开(公告)号：US20190074693A1

公开(公告)日：2019-03-07

申请号：US16080385

申请日：2016-02-29

Applicant: NEC Corporation

Inventor： Koji KUDO

IPC: H02J3/28 ,  H02J3/14 ,  G05B15/02 ,  H02J7/00

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.

公开(公告)号：US20190052096A1

公开(公告)日：2019-02-14

申请号：US16080357

申请日：2016-02-29

Applicant: NEC Corporation

Inventor： Koji KUDO

IPC: H02J3/46 ,  H02J7/00 ,  G05B15/02

Abstract: To reduce a time lag when differential power from target values of outputs of a plurality of renewable energy power sources distributed in a wide area is absorbed by a plurality of energy storage devices distributed in a wide area, there is provided a control device (10) including a reception unit (101) that receives power generation relevant information related to a power generation situation of each of a plurality of power generation devices; a calculation unit (102) that calculates total differential power indicating a difference between a power generation output by the plurality of power generation devices and a target power generation output based on the received power generation relevant information; and a transmission unit (103) that transmits differential power information indicating the total differential power to a plurality of supply and demand adjustment control devices.