Nec Corporation

The University of Tokyo

Nec Platforms, Ltd.

Nec Engineering, Ltd.

Hitoshi Yano

Koji Kudo

Hisato Sakuma

Ryo Hashimoto

Eisuke Saneyoshi

Takahiro Toizumi

Yuma Iwasaki

Kazuhiko Aoki

Yoshiho Yanagita

Ryosuke Kuribayashi

Kazuhiko Ogimoto

Kazuto Kataoka

Takashi Ikegami

Toshiya Okabe

Kosuke Homma

Takayuki Shizuno

Alexander Viehweider

Tohru Kimura

Katsuya Suzuki

Tadashi Maeda

Koji Fukami

Tomoyuki Yamase

Keiichi Numata

Nobuhide Yoshida

Jun Noda

Yuuichi Aoki

Akitake Mitsuhashi

Daigo Taguchi

Teruki Sukenari

Daisuke Takashima

Hiroto Iguchi

Yasuhisa Tokai

Kunihiro Suzuki

Provided is a monitoring apparatus including an acquisition unit that acquires first time-series data which is time-series data of a measured value and/or a feature amount regarding an electrical device group, and a registration and updating unit that, when a difference in values between a pre-state-change data value which is any one of a data value at a first point in time in the first time-series data and a statistic of a plurality of data values from a point in time earlier than the first point in time by a predetermined period of time to the first point in time and a post-state-change data value which is any one of a data value at a second point in time later than the first point in time and a statistic of a plurality of data values from the second point in time to a point in time later than the second point in time by a predetermined period of time satisfies a predetermined condition, stores a feature amount extracted from any waveform data of a total current consumption, a total power consumption, and a total input voltage of the electrical device group corresponding to the pre-state-change data value and the post-state-change data value which satisfy the predetermined condition, in a feature amount storage unit.

Monitoring apparatus, monitoring method, and storage medium

An apparatus for estimating power consumption, includes: a receiving section that receives consumer power consumptions of a plurality of days in the past; and a determining section that determines an estimated value of the consumer power consumption by using power consumption on conforming days that conform to a predetermined range from a reference value, among the plurality of days.

Apparatus for estimating power consumption, method of estimating power consumption, and program

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.

Energy management apparatus, energy management method and program recording medium

A battery control device controlling an operation of a battery connected to a power system includes detection means that detects battery-related information that shows a state of the battery, or a voltage 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 receives operation control information to control the operation of the battery from the external device, and control means that controls the operation of the battery, based on a state of the power system and the operation control information received by the first communication means.

Battery control device, battery control support device, battery control system, battery control method, battery control support method, and recording medium

A power control system includes an acquisition unit that acquires information indicating the amount of power demand that is used by a consumer according to predetermined information that prompts adjustment of the power demand, and a control unit that controls a predetermined apparatus in accordance with a target demand amount and the information indicating the power demand amount.

Power control system, power control method, and recording medium

The HEMS of each consumer transmits the amount of surplus electricity that is expected by to be generated by a PV system, and/or the amount of electric power that is needed by a controllable load, in a predetermined time slot on a predetermined date, to a server apparatus. The server apparatus, based on the notified amount of surplus electricity and the amount of electric power that is needed by the controllable load, combines a first consumer and a second consumer so that the amount of electric power needed by the controllable load will be equal to or greater than the amount of surplus electricity. Then, under the control the HEMS of the second consumer, the surplus electricity that is generated by the first consumer is consumed by each controllable load.

Electric power management system and electric power management method

Lower-level information processing devices (-to-) obtain parameters used for estimating power consumption in accordance with the statuses of electric devices (-to-), estimate the power consumption of the electric devices (-to-) on the basis of the parameters, and transmits the estimated value of the estimated power consumption to an upper-level information processing device (). The upper-level information processing device () 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 (-to-). The lower-level information processing devices (-to-) controls the operations of the electric devices (-to-) on the basis of the assignment of distribution of supply and demand.

Energy control system, energy control device, energy control method, and storage medium

A supply-and-demand adjustment system, that utilizes characteristics of supply-and-demand adjustment apparatuses and precisely matches a total supply-and-demand adjustment amount with a required adjustment amount when performing a supply-and-demand adjustment. The supply-and-demand adjustment system comprises a central control apparatus and one or more supply-and-demand adjustment apparatuses, the central control apparatus includes a state collection unit that collects information with regard to a state of each supply-and-demand adjustment apparatus, an allocation band calculation unit that calculates a frequency band and an intensity of a fluctuation of a supply-and-demand adjustment to be allocated to each supply-and-demand adjustment apparatus based on the information of the state, and an 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 the supply-and-demand adjustment to be allocated to said each supply-and-demand adjustment apparatus.

Supply and demand adjustment system, supply and demand adjustment method, and supply and demand adjustment program

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 () varies the distribution line power amount, which is a value of the power flow that flows in a distribution line () to which is connected a plurality of power sources () that each generate power. A measurement device () 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 () 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.

Power flow control system and power flow control method

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.

Control device, power storage device, battery control system, battery control device, control method, battery control method, and recording medium

Acquisition unitacquires 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 unitrequests 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 unitcauses 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.

Power supply-demand adjusting apparatus, power system and power supply-demand adjusting method

A time point range setting unit () 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 (). A necessary operation time setting unit () sets a necessary operation time with respect to each of the plural power-consuming bodies (). A shape information obtaining unit () obtains shape information from a schedule management apparatus (). 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 () 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 () being operated follows the assumed shape.

Information processing apparatus, power-consuming body, information processing method, and program

A battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system includes a communication characteristics detection unit that, for each of the plurality of batteries, detects characteristics of communication paths between the batteries and the battery control system within the communication network. The battery control system includes a selection unit which selects, from among the plurality of batteries, each battery that has characteristics of communication paths within a predetermined communication characteristics range, as a regulating battery that is to be used for regulating electric power of the electric power system. The battery control system includes a control unit that supplies operation instructions that instructs the regulating batteries that were selected in the selection unit to perform a charging or discharging operation.

Electric power control system, battery control system, battery control device, battery control method, and recording medium

An energy management system and an energy management method enable an improvement of the balance between power supply and demand. A storage battery () is connected to a power line () that transmits outside power. A storage battery controller () receives a control signal indicating a reduced use period during which the consumption of the outside power by a consumer apparatus () connected to the power line () is to be reduced, acquires an index value that has a correlation with the demand for outside power, and on the basis of the control signal and the index value, adjusts the amount of charging/discharging of the storage battery ().

Energy management system and energy management method

A time range setting unit () 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 (). A necessary operation time setting unit () sets a necessary operation time with respect to each of the plural power demanding objects (). A shape information acquisition unit () acquires shape information from a schedule management device (). 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 () 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 () being operated accords with the assumed shape.

Growing community of inventors

Tokyo, Japan

Hitoshi Yano