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. 17, 2016
Filed:
Apr. 24, 2012
Tsuyoshi Wakasa, Tokyo, JP;
Hisanobu Shinoda, Tokyo, JP;
Masayuki Hashimoto, Tokyo, JP;
Yukio Yamashita, Tokyo, JP;
Takehiro Naka, Tokyo, JP;
Akira Yasugi, Tokyo, JP;
Takumi Nakashima, Tokyo, JP;
Tsuyoshi Wakasa, Tokyo, JP;
Hisanobu Shinoda, Tokyo, JP;
Masayuki Hashimoto, Tokyo, JP;
Yukio Yamashita, Tokyo, JP;
Takehiro Naka, Tokyo, JP;
Akira Yasugi, Tokyo, JP;
Takumi Nakashima, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A wind-turbine control device controls a wind turbine generator in which a rotor having a plurality of blades receives wind and rotates. The generator generates electrical power through the rotation of the rotor. The electrical power is supplied to a utility grid, and electric energy to be supplied to the utility grid can be changed according to a change in the frequency of the utility grid. The wind-turbine control device includes a subtracter to calculate a frequency change, which is the difference between a measurement value of the frequency of generated output power of the wind turbine generator and a set value of the frequency of the generated output power of the wind turbine generator. The wind-turbine control device further includes a limiter to limit a change in the electrical power corresponding to the frequency change calculated by the subtracter, based on the rotational speed of the generator.