The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2011
Filed:
Oct. 20, 2009
Akira Kikuchi, Hitachi, JP;
Masaya Ichinose, Hitachiota, JP;
Motoo Futami, Hitachiota, JP;
Mitsugu Matsutake, Hitachi, JP;
Kouichi Miyazaki, Hitachi, JP;
Akira Kikuchi, Hitachi, JP;
Masaya Ichinose, Hitachiota, JP;
Motoo Futami, Hitachiota, JP;
Mitsugu Matsutake, Hitachi, JP;
Kouichi Miyazaki, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A wind turbine generator system can regulate the rotational velocity of the wind turbine within an operation range even when the wind velocity suddenly changes and can perform continuous operation of the wind turbine. The wind turbine generator system includes a generator connected to the shaft of the wind turbine and a converter connected to the generator. When the rotational velocity of the wind turbine is within a predetermined range, power outputted from the generator is controlled so as to follow the instruction concerning the generator output given from the wind turbine to the converter. When the rotational velocity of the wind turbine is out of the predetermined range, the power outputted from the generator is controlled without following the instruction concerning generator output given from the wind turbine to the converter.