Kabushiki Kaisha Toshiba

Tomohiko Tanimoto

Kazuto Kubota

Kyosuke Katayama

Kiyotaka Matsue

Hiroshi Taira

Takahisa Wada

Hiroyuki Kobayashi

Nobutaka Nishimura

Masahiko Murai

Takafumi Nakahama

Kimito Idemori

Katsuhiro Sumi

Masayuki Yamagishi

Takahiro Shirota

Takayuki Ishii

According to an embodiment, energy management system includes client and server. Server includes acquisition unit, estimation unit, calculator and controller. Acquisition unit acquires data concerning electrical equipment in a building including a storage battery from client. Estimation unit estimates energy demand and energy generation amount in building based on the data. Calculator calculates, based on the energy demand and the energy generation amount, operation schedule of the electrical equipment to optimize energy balance in building under a constraint that minimizes dump power to be discarded after storage battery is fully charged. Controller creates control information to control electrical equipment based on operation schedule.

Energy management system, server, energy management method, and storage medium

According to an embodiment, energy management system includes estimating module, preparing module and controller. Estimating module estimates energy demand of a home, and obtains estimated value of energy demand of home. Estimating module estimates energy generation amount and obtains estimated value of the generation amount. Preparing module prepares discharge strategy, based on the estimated energy demand and generation amount. Discharge strategy maximizes balance obtained by subtracting power purchase loss from power selling profit, by using a push-up effect. The controller controls discharge of the energy storage, based on actual values of the energy demand and the generation amount, and the discharge strategy.

Energy management system, energy management method, program, server apparatus, and local server

According to one embodiment, energy manager includes first estimator, second estimator, creator and controller. First estimator estimates power amount of power generator. Second estimator estimates energy demand. Creator creates schedule of devices based on estimated power amount and energy demand. Controller controls the devices based on the schedule. Second estimator includes storage, extractor and calculator. Storage accumulates load data. Extractor extracts load patterns including different load data. Calculator calculates weight for each of extracted patterns. Creator includes simulator and scheduler. Simulator simulates evaluated value of each schedule based on the pattern and weight. Scheduler creates schedule based on evaluated value.

Renewable energy management using weighted load patterns

According to one embodiment, a conveyor diagnostic device diagnoses an abnormal state of a cyclically moving conveyor. The conveyor diagnostic device includes a first tilt sensor, a second tilt sensor, a table, and a processing unit. The first and second tilt sensors are attached to a predetermined position of the conveyor and detect tilt angles of the conveyor in a vertical direction and horizontal direction, respectively. The table indicates a relationship between a tilt angle which changes in the vertical direction and sections included in one revolution of the conveyor. The processing unit specifies an abnormality occurrence position of the conveyor based on a tilt angle in the vertical direction, the table, and an elapsed time after ingression for a section corresponding to the tilt angle in the vertical direction, when a tilt angle in the horizontal direction exceeds a predetermined management limit value.

Conveyor diagnostic device and conveyor diagnostic system

In an enclosed control device including a casing enclosing an electronic circuit in a closed state, a centrifugal fan is also enclosed in the casing for enhancing the cooling of the electronic circuit. With a smoothing capacitor and a semiconductor element heating up, a temperature in the casing increases. Air flows to the side of the centrifugal fan. After passing through the centrifugal fan, the air disperses in the directions along the inner wall of the casing. This flow of air enhances heat transmission from the heated up smoothing capacitor and the semiconductor element to the air, and heat transmission from the air to the casing.

Enclosed control device

Growing community of inventors

Tama, Japan

Tomohiko Tanimoto