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:
Nov. 22, 2011
Filed:
Feb. 18, 2010
Tohru Minami, Tokyo, JP;
Mitsuyoshi Fukuda, Tokyo, JP;
Eiji Irie, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
The present invention provides a maintenance operation method for a wind turbine generator and a wind turbine generator, which can effectively utilize a phase advance capacitor equipped in the wind turbine generator and contribute to the phase factor improvement of the system side. A maintenance operation method for a wind turbine generator including an induction generatordriven by rotation of blades, a power output linefor outputting power of the induction generatorto a distribution system, and at least one phase advance capacitorparallel-connected to the power output line, comprises: a first step of releasing connection between the phase advanced capacitorand the power output linewhen a maintenance mode is selected; and a second step of returning the connection between the phase advanced capacitorand the power output lineby a manual operation or an automatic operation, wherein the phase advance capacitorreturned to the connection with the power output lineperforms a power factor improvement of reactor loadsin the distribution systemside through a linkage portionwith the distribution system