MUMBAI, India, Dec. 27 -- Intellectual Property India has published a patent application (124/MUMNP/2011) filed by MITSUBISHI HEAVY INDUSTRIES Ltd., Tokyo, on (Jan. 21) for a 'Wind Power Generation System.'

The application for the patent - which was invented by Shinji Arinaga, Tsuyoshi Wakasa, Takatoshi Matsushita, Akira Yasugi and Masaaki Shibata, all from Japan - was published on Dec. 16 under journal no. 50/2011.

According to the abstract released by the Intellectual Property India: "Provided is a wind power generation system intending to suppress an increase of torque when a voltage in a utility grid is restored, and to reduce a load to devices due to the torque. The blade control unit controls the pitch angle of the wind turbine blades such that a rotation speed of the power generator becomes equal to or greater than a synchronous rotation speed when the power control unit de-actuates the operations of the converter and the inverter, and controls the pitch angle of the wind turbine blades such that the pitch angle matches a target pitch angle that is determined based on one of a wind speed, a rotation speed of the power generator, and a requested output power when the power control unit re-actuates the operations of the converter and the inverter."

The patent application was internationally filed on Feb. 20, 2009 under International application No. PCT/JP2009/053079.

(Source: Power Engineering)