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Title:
CONTROL DEVICE FOR GAS TURBINE POWER GENERATION PLANT
Document Type and Number:
WIPO Patent Application WO/2012/105053
Kind Code:
A1
Abstract:
Provided is a control device for a gas turbine power generation plant, the control device comprising: a compressor (1) pressurizing combustion air; an intake air sprayer (3) spraying a droplet of spray water supplied through a spray flow control valve (13) to the flow of the air absorbed into the compressor (1); a combustor (2) conducting combustion switching during operation by mixing and combusting the combustion air into a fuel and generating high-temperature combustion gas; a turbine (4) driving the compressor (1) and a power generator by using the combustion gas, the spray flow control valve (13) controlling flow of the spray water; and a compressor inlet inner blade (11) controlling the flow of the air absorbed into the compressor (1), wherein the control device further comprises a controlling means (24) calculating a fuel-air ratio correction command signal to compensate for a decrease in the fuel-air ratio occurring at the combustor (2) during the combustion switching and controlling an opening degree of the compressor inlet inner blade (11) and/or an opening degree of the spray flow control valve (13) based on the fuel-air ratio correction command signal.

Inventors:
KIM EUNKYEONG (JP)
KOYAMA KAZUHITO (JP)
HATAMIYA SHIGEO (JP)
KATAGIRI YUKINORI (JP)
YOSHIDA TAKUYA (JP)
KUSUMI NAOHIRO (JP)
TAKAHASHI KAZUO (JP)
Application Number:
PCT/JP2011/052422
Publication Date:
August 09, 2012
Filing Date:
February 04, 2011
Export Citation:
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Assignee:
HITACHI LTD (JP)
KIM EUNKYEONG (JP)
KOYAMA KAZUHITO (JP)
HATAMIYA SHIGEO (JP)
KATAGIRI YUKINORI (JP)
YOSHIDA TAKUYA (JP)
KUSUMI NAOHIRO (JP)
TAKAHASHI KAZUO (JP)
International Classes:
F02C9/20; F02C3/30
Foreign References:
JP2008064014A2008-03-21
JPH07225024A1995-08-22
JP2003074854A2003-03-12
JPH05256166A1993-10-05
JP2000257443A2000-09-19
JPH08270407A1996-10-15
JP2007107464A2007-04-26
JPH03258928A1991-11-19
JP2010025069A2010-02-04
JPH11343869A1999-12-14
JPH09236024A1997-09-09
JPH1172029A1999-03-16
JP2005511947A2005-04-28
Other References:
See also references of EP 2672089A4
Attorney, Agent or Firm:
KASUGA Yuzuru (JP)
Kasuga 讓 (JP)
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Claims:



 
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