Nec Corporation

Hitachi, Ltd.

Tdk Corporation

Hitachi Denshi Kabushiki Kaisha

The University of Tokyo

Citizen Watch Company, Ltd.

Nec Platforms, Ltd.

Nec C Orporation

Hitachi Video Engineering, Incorporated

Hitachi Denshi Kabushiki Kaisha & Hitachi

Koji Kudo

Hisato Sakuma

Hitoshi Yano

Ryo Hashimoto

Eisuke Saneyoshi

Takahiro Toizumi

Yuma Iwasaki

Kosuke Homma

Kenji Sato

Kenji Mizutani

Shusaku Nagahara

Shinya Sudo

Ryosuke Kuribayashi

Takashi Nakamura

Kuniaki Takahashi

Kenji Takahashi

Kazuhiko Aoki

Yoshiho Yanagita

Hiroo Hongo

Shinichi Araya

Kazuhiko Ogimoto

Kazuto Kataoka

Takashi Ikegami

Alexander Viehweider

Tetsuo Takahashi

Kenji Kobayashi

Katsuya Suzuki

Yukiko Morioka

Naoki Ozawa

Shizuka Ishibashi

Yukihiro Masuda

Takuma Kodama

Kazuhiro Sato

Toshiyuki Akiyama

Kenichi Ishii

Masanori Maruyama

Itaru Mimura

Takayuki Nyu

Toshiya Okabe

Takayuki Shizuno

Hiroyuki Ohira

Jan De Merlier

Masanori Hombough

Jan De Merli

Mads L Nielsen

Hiroshi Ikeda

Hiroyuki Yamazaki

Takeshi Ito

Morishi Izumita

Yoshizumi Eto

Masayuki Yamaguchi

Masuo Umemoto

Suguru Watanabe

Noriaki Kobayashi

Hitoshi Nakayama

Kazuhiro Satou

Masayoshi Tsuji

Kazuhiro Shiba

Hayao Kano

Koichi Naniwae

Kunio Mogi

Yoshitaka Yokoyama

Masato Yano

Masanori Sato

Hisahide Nakagawa

Kazuhisa Yoshiwara

Ichikawa Shingo

Masanori Hombaugh

Osamu Miyoshi

Masanori Honbo

Hiroto Iguchi

Daisuke Takashima

Yasuhisa Tokai

Chikafusa Hirano

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

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.

Demand and supply adjustment system, control apparatus, control method, and program

To efficiently utilize power generated by a renewable energy power source performing output suppression, Provided is a control device () including: a first calculation unit () 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 () 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 () that transmits power generation suppression control information to each of the plurality of power generation devices based on the residual excess power information.

Systems and methods for generating power generation suppression control information by a control device

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.

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

A renewable power system according to the exemplary embodiment includes a renewable power plant (), a controllable plant () and an energy management system () 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.

Renewable power system and sizing method for controllable plant associated with renewable power system

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 () 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 () including a decision unit () 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.

Power control apparatus, power control system, and power control method

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.

Power generation control device, power generation apparatus, control device, control system, control method, and recording 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

A monitoring device () includes a unit-specific waveform data acquisition unit () that acquires waveform data in a unit in which electrical devices are installed; a first inference unit () 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 () that infers an operation state of each of the electrical devices based on an inference result of the first inference unit ().

Monitoring device, monitoring system, monitoring method, and non-transitory storage medium

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 D(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 D(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 D(t)&#x2264;a capacity degradation amount D(t) is satisfied.

Storage cell control system, storage cell control method, and recording medium

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

A monitoring system including a plurality of monitoring devices () and a server () is provided. When new device data including a feature amount of a new electrical device different form existing electrical devices is extracted from measurement data (current consumption or the like), the monitoring device () calibrates the feature amount of the new electrical device using calibration data generated based on calibration data of the exiting electrical device, and transmits the new device data to the server () in association with identification information of the new electrical device. When the calibrated new device data of the new electrical device is received from the plurality of monitoring devices (), the server () generates and registers training data of the new electrical device based on the plurality of pieces of calibrated new device data.

Monitoring system, monitoring device and method of operating the same, server and method of operating the same, and non-transitory storage 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

Growing community of inventors

Tokyo, Japan

Koji Kudo