Toshiba Mitsubishi-electric Industrial Systems Corporation

Nec Corporation

Junichi Nomura

Manabu Souda

Hiroyoshi Komatsu

Ruben Alexis Inzunza Figueroa

A communication system includes transmitters and a receiver. The receiver includes a template extractor configured to extract a template consisting of a common portion and a variable portion of transmission data received from the transmitters on the basis of transmitter identification information included in the transmission data and content of the transmission data and a template transmitter configured to transmit the extracted template to the transmitters. The transmitters each include a transmission unit that compresses the transmission data using the template and transmits the compressed transmission data to the receiver.

Communication system

An object is to obtain a low-frequency circuit breaker which has a simple configuration and a small size as a whole and is advantageous in view of costs. There is provided a low-frequency circuit breaker, in which a semiconductor switch and a mechanical switch are connected in parallel with each other. The semiconductor switch is configured by connecting a thyristor and a thyristor in anti-parallel with each other. These members are controlled by the circuit breaker control circuit.

Low-frequency circuit breaker

There is provided a protection circuit that protects a power converter connected to a secondary winding of a double-fed induction generator, the protection circuit including a rectifying unit connected to the secondary winding and configured to rectify an electric power coming through the secondary winding, a power consumption unit configured to consume the electric power rectified by the rectifying unit, and a switching unit connected to the power consumption unit in series and configured to switch to adjust the electric power flowing into the power consumption unit.

Growing community of inventors

Tokyo, Japan

Junichi Nomura