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).

公开(公告)号：US10114051B2

公开(公告)日：2018-10-30

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: G01R13/04 ,  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.

公开(公告)号：US10069302B2

公开(公告)日：2018-09-04

申请号：US14768235

申请日：2013-12-04

Applicant: NEC Corporation

Inventor： Hisato Sakuma ,  Koji Kudo ,  Hitoshi Yano ,  Kazuhiko Aoki ,  Yoshiho Yanagita ,  Eisuke Saneyoshi ,  Yuma Iwasaki ,  Ryo Hashimoto ,  Takahiro Toizumi

IPC: H02J3/38 ,  F03D9/00 ,  H02J3/28 ,  H02J7/35 ,  H02J3/46 ,  H02J13/00 ,  F03D9/25

Abstract: A power flow control system is provided that is capable of improving the reliability of controlling power flow fluctuation and creating wide applicability for systems that control power flow fluctuation. A power-varying device (101) varies the distribution line power amount, which is a value of the power flow that flows in a distribution line (112) to which is connected a plurality of power sources (111) that each generate power. A measurement device (102) measures an index value relating to the total generated power amount, which is the sum total of the amount of power generated by each of the power sources. A calculation device (103) estimates the total generated power amount from the index value, and according to the estimation result, regulates the amount of change in the distribution line power amount that is changed by the power-varying device.

公开(公告)号：US10033214B2

公开(公告)日：2018-07-24

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 ,  G06Q50/06 ,  G06Q30/04 ,  B60L11/18

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.

公开(公告)号：US09881270B2

公开(公告)日：2018-01-30

申请号：US15031468

申请日：2014-09-29

Applicant: NEC Corporation

Inventor： Ryo Hashimoto ,  Hitoshi Yano ,  Hisato Sakuma ,  Koji Kudo ,  Eisuke Saneyoshi ,  Takahiro Toizumi ,  Kosuke Homma ,  Yuma Iwasaki

IPC: G05B19/042 ,  G06Q10/06 ,  G05B15/02 ,  G06Q50/06 ,  H02J3/00

CPC classification number: G06Q10/06314 ,  G05B15/02 ,  G05B2219/2639 ,  G06Q50/06 ,  H02J3/00 ,  H02J2003/003 ,  Y04S10/126 ,  Y04S10/54

Abstract: A time range setting unit (110) sets an operation startable time point at which an operation can be started and a target operation end time point which is the latest time point among time points at which the operation is to be ended, with respect to each of plural power demanding objects (20). A necessary operation time setting unit (120) sets a necessary operation time with respect to each of the plural power demanding objects (20). A shape information acquisition unit (130) acquires shape information from a schedule management device (40). The shape information indicates an assumed shape of a transition line that represents transition in the amount of supplied power in a target period. A demand transition setting unit (140) sets power demand transition information indicating transition in an electric energy demand in the target period so that the necessary operation time is obtained and so that the transition in the electric energy demand generated by the plural power demanding objects (20) being operated accords with the assumed shape.

公开(公告)号：US20150220098A1

公开(公告)日：2015-08-06

申请号：US14429494

申请日：2013-09-20

Applicant: NEC CORPORATION

Inventor： Ryo Hashimoto ,  Hitoshi Yano ,  Hisato Sakuma ,  Koji Kudo ,  Eisuke Saneyoshi ,  Yuma Iwasaki ,  Takahiro Toizumi

IPC: G05F1/66 ,  G05B15/02

CPC classification number: G05F1/66 ,  B60L11/1824 ,  B60L11/1844 ,  B60L2230/40 ,  B60L2240/70 ,  B60L2240/80 ,  G05B15/02 ,  G06Q50/06 ,  H02J3/14 ,  H02J3/32 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T10/7291 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y04S10/126 ,  Y04S10/60

Abstract: A time point range setting unit (110) sets an operation startable time point when an operation is startable, and an operation end target time point which is a latest time point among time points when the operation is to be ended, with respect to each of plural power-consuming bodies (20). A necessary operation time setting unit (120) sets a necessary operation time with respect to each of the plural power-consuming bodies (20). A shape information obtaining unit (130) obtains shape information from a schedule management apparatus (40). The shape information represents an assumed shape of a transition line indicating transition in the amount of power supplied in a target period. A demand transition setting unit (140) determines power demand transition information indicating transition in electrical energy demand in the target period so that the necessary operation time is obtained and the transition in the electrical energy demand generated by the plural power-consuming bodies (20) being operated follows the assumed shape.

Abstract translation: 时间点范围设定单元（110）设定操作开始时的操作开始时间点和作为操作结束的时间点之后的最后时间点的操作结束目标时间点 多个耗电体（20）。 必要的动作时间设定部（120）相对于多个耗电体（20）中的每一个设定必要的动作时间。 形状信息获取单元从计划管理装置（40）获得形状信息。 形状信息表示转移线的假设形状，表示在目标周期内提供的功率量的转变。 需求转换设定部（140）确定表示目标期间的电力需求转移的功率需求转移信息，从而获得必要的运转时间，并且由多个耗电体（20）生成的电能需求的转变， 被操作遵循假定的形状。