Kabushiki Kaisha Toshiba

Toshiba Energy Systems & Solutions Corporation

Daigo Kittaka

Masafumi Komai

Koji Toba

Shunsuke Kawachi

Mitsuhiro Enomoto

Takatoshi Asada

Noriyuki Takeshima

Ryoichi Sugawara

Hiroyuki Oota

Yasuko Oyamatsu

A power supply system according to the present embodiment includes a plurality of first power converters configured to supply power according to dispatching characteristics of power to be supplied to a load, and a plurality of control devices each configured to associate a change ratio of active power to an output frequency of each of the first power converters with the dispatching characteristics and control each of the first power converters based on the change ratio.

Power supply system and method for controlling power supply system

An electromagnetic flow meter comprises: an excitation member () in which a plurality of magnets () are arranged spaced apart from one another along an outer circumferential surface of a flow channel () through which liquid metal flows, and in which a magnetic field is formed in a direction perpendicular to the outer circumferential surface of the flow channel (); and electrodes () provided between the magnets () of the excitation member (), for measuring the voltage generated when the liquid metal crosses the magnetic field. A pulse excitation electric-current supply device () for supplying a pulsed excitation current to the excitation member () is provided, whereby a flow speed distribution can be suppressed from being generated in the circumferential direction of the channel () even when the flow speed of the liquid metal is low, and the flow rate can be accurately measured.

Electromagnetic flowmeter, electromagnetic flow rate measurement system, and electromagnetic flow rate measurement method

One embodiment of an electromagnetic flow rate measurement system includes electromagnetic flowmeters arranged at intervals from one another in the peripheral direction of an annular flow passagein which an electric conductive fluid flows. Each of the electromagnetic flowmeters comprises: an excitation member that has magnets arranged at intervals from one another in the outer peripheral surface of the annular flow passage so as to form a magnetic field in the direction perpendicular to the outer peripheral surface of the annular flow passage; and electrodes that are provided between the magnets of the excitation member and between the magnets of the excitation member so as to measure voltage generated when the electric conductive fluid crosses the magnetic field. The polarities of the magnets at the end portions of the closest excitation members of the adjacent electromagnetic flowmeters are opposed to each other.

Electromagnetic flow rate measurement system and calibrator therefor

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Kanagawa, Japan

Daigo Kittaka