Mitsubishi Heavy Industries Limited

Artemis Intelligent Power Limited

Mhi Vestas Offshore Wind A/s

Euros Entwicklungsgesellschaft Fur Windkraftanlagen Mbh

Hidekazu Ichinose

Tsuyoshi Wakasa

Takatoshi Matsushita

Yukio Yamashita

Masayuki Shimizu

Toshikazu Hayashi

Atsushi Yuge

Kazuhisa Tsutsumi

Hisanobu Shinoda

Satoshi Iwasaki

Masaki Shibata

Kazufumi Takayanagi

Hideyasu Fujioka

Takuya Koyanagi

Taketo Mizoue

Takeo Ohira

Andreas Cremer

Jens Alwart

Yusaku Egashira

A SCADA system includes a main switching hub and a backup switching hub that relay transmission data between a wind turbine generator and terminals provided in another SCADA system and client terminals, and a network switch for performing switching between the main switching hub and the backup switching hub for relaying transmission data between the wind turbine generator and the terminals. A backup remote I/O connected to the backup switching hub causes the network switch to perform switching based on a switching command from a SCADA terminal input via the backup switching hub. This serves to solve a data transmission problem caused by a problem in a switching hub on the wind turbine generator side from a remote location.

Remote monitoring apparatus, wind turbine generator system, and method of controlling remote monitoring apparatus

A wind-turbine control system is provided for each of a plurality of wind turbine generators constituting a wind farm, sends wind-turbine data about a controlled wind turbine generator to the wind-turbine control systems provided for the other wind turbine generators, and receives wind-turbine data about the other wind turbine generators from the wind-turbine control systems provided for the other wind turbine generators. Then, the wind-turbine control system controls the controlled wind turbine generator based on the wind-turbine data about the controlled wind turbine generator and the wind-turbine data about the other wind turbine generators. Therefore, the control of the wind turbine generators constituting the wind farm can be changed more swiftly according to the operational condition of the wind farm.

Wind-turbine-generator control system, wind farm, and wind-turbine-generator control method

In a wind turbine generator, the rotation of the rotor is speeded up by a hydraulic pump and a hydraulic motor and is transferred to a synchronous generator. In a state in which the wind turbine generator is interconnected to a utility grid, and the synchronous generator reaches a synchronous speed, if no mechanical power is transferred to the synchronous generator, a wind-turbine control system operates the synchronous generator as a synchronous condenser, thus controlling the magnitude of the field current of the synchronous generator. Thus, the wind turbine generator can supply reactive power to the utility grid without adding new equipment, such as a reactive power compensator using a semiconductor switch.

Wind-turbine-generator control system, wind turbine generator, wind farm, and wind-turbine-generator control method

Growing community of inventors

Tokyo, Japan

Hidekazu Ichinose