Mitsubishi Heavy Industries Limited

Stephen Laird

Niall James Caldwell

Masayuki Shimizu

Ken Nakayama

Atsushi Maekawa

Kazuhisa Tsutsumi

Uwe Stein

Daniil Sergeevich Dumnov

William Rampen

Toshihide Noguchi

Hauke Karstens

Hidekazu Ichinose

Fumio Hamano

Daniel Abrahams

Yasuhiro Korematsu

Alasdair Robertson

Venkata Pappala

Shigeru Hokazono

Takumi Mine

Erik Muenz

Francesco Baldini

Jamie Taylor

Michael Fielding

An object of the invention is to provide a wind turbine generator or a tidal current generator which is equipped with a hydraulic transmission and achieves a superior power generation efficiency, and a operation method thereof. The wind turbine generatorcomprises a hydraulic pumpof a variable displacement type which is rotated by the main shaft, a hydraulic motorof a variable displacement type which is connected to the generator, and a high pressure oil lineand a low pressure oil linewhich are arranged between the hydraulic pumpand the hydraulic motor. The pump controllerobtains a target torque of the hydraulic pumpat which a power coefficient becomes maximum, and then sets a displacement Dof the hydraulic pumpbased on the target torque and the pressure in the high pressure oil line. The motor controllersets a displacement Dof the hydraulic pumpbased on a discharge amount Qof the hydraulic pump obtained from the displacement Dof the hydraulic pumpso that the rotation seed of the generatorbecomes constant.

Wind turbine generator and tidal current generator and operation method thereof

Growing community of inventors

Lothian, United Kingdom

Stephen Laird