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:
Sep. 09, 2014
Filed:
Feb. 04, 2011
Eunkyeong Kim, Hitachi, JP;
Kazuhito Koyama, Hitachi, JP;
Shigeo Hatamiya, Hitachi, JP;
Yukinori Katagiri, Hitachi, JP;
Takuya Yoshida, Mito, JP;
Naohiro Kusumi, Hitachinaka, JP;
Kazuo Takahashi, Hitachi, JP;
Eunkyeong Kim, Hitachi, JP;
Kazuhito Koyama, Hitachi, JP;
Shigeo Hatamiya, Hitachi, JP;
Yukinori Katagiri, Hitachi, JP;
Takuya Yoshida, Mito, JP;
Naohiro Kusumi, Hitachinaka, JP;
Kazuo Takahashi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A controller for use in a gas turbine power plant includes a compressor that compresses combustion air; a water-atomization cooling apparatus that sprays water drops of atomized water supplied via a water-atomization flow-rate regulating valve over a flow of air drawn in the compressor; a combustor that mixes the compressed combustion air with fuel to thereby burn a fuel-air mixture and generate combustion gas at high temperature and performs combustion switching during operation; a turbine that uses the combustion gas to drive the compressor and a generator; the water-atomization flow-rate regulating valve that controls a flow rate of the atomized water; and a compressor inlet inner blade that controls a flow rate of air drawn in the compressor. The controller includes control means that calculates a fuel-air ratio correction command signal for compensating for reduction in a fuel-air ratio in the combustor occurring during the combustion switching.