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:
Oct. 25, 2011
Filed:
Mar. 24, 2008
Atsushi Matsuo, Nagasaki, JP;
Koji Fukami, Nagasaki, JP;
Toshihide Noguchi, Nagasaki, JP;
Kazuki Hayashida, Nagasaki, JP;
Teppei Fujitsuka, Nagasaki, JP;
Yuji Yatomi, Nagasaki, JP;
Atsushi Matsuo, Nagasaki, JP;
Koji Fukami, Nagasaki, JP;
Toshihide Noguchi, Nagasaki, JP;
Kazuki Hayashida, Nagasaki, JP;
Teppei Fujitsuka, Nagasaki, JP;
Yuji Yatomi, Nagasaki, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A wind turbine generator system is provided with a nacelle supporting a wind turbine rotor, a nacelle rotation mechanism, an anemometer, and a control apparatus controlling the nacelle rotation mechanism. Said control apparatus calculates the wind direction deviation from the wind direction measured by the anemometer and the direction of the wind turbine rotor. Said control apparatus performs a yaw rotation of the nacelle by the nacelle rotation mechanism when any of conditions (1) and (2) is satisfied; the condition (1) is a condition under which a state where the absolute value of said wind direction deviation is equal to or more than a first threshold value continues for a first duration predetermined, and the condition (2) is a condition under which a state where the absolute value of said wind direction deviation is equal to or more than a second threshold value larger than said first threshold value continues for a second duration shorter than said first duration.