[특허]Gas turbine coordinated fuel-air control method and apparatus therefor

[미국특허] Gas turbine coordinated fuel-air control method and apparatus therefor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-009/50
출원번호	US-0236972 (1994-05-02)
발명자 / 주소	Rajamani Ravi (Schenectady NY) Minto Karl D. (Ballston Lake NY) Bulkley Benjamin E. (Erie PA) Norman Bruce G. (Charlton NY)
출원인 / 주소	General Electric Company (Schenectady NY 02)
인용정보	피인용 횟수 : 24 인용 특허 : 0

초록 ▼

A method of minimizing undesirable emissions from and acoustic pressure oscillations in a gas turbine includes the step of coordinating modulation of turbine fuel and air supply signals to maintain the fuel air ration (FAR) within a selected range. Coordination of the modulation of fuel and air supply signals includes the steps of producing a turbine fuel supply control signal in correspondence with a turbine speed error signal, generating a coordinated turbine exhaust temperature error signal by modifying a preliminary turbine exhaust temperature error signal in correspondence with the speed error signal, and producing a turbine air supply control signal from the coordinated turbine exhaust temperature error signal; the coordinated turbine exhaust temperature error signal provides coordination between the turbine fuel supply signal and the turbine air supply signal so as to maintain the fuel-air ratio of the combustible mixture being fed to the turbine within the selected range.

대표청구항 ▼

A method for operating a gas turbine so as to reduce undesirable emissions and acoustic pressure oscillations, the method comprising the step of coordinating the modulation of respective turbine fuel supply and air supply signals so as to maintain the fuel-air ratio of the fuel air combustible mixture supplied to the turbine substantially constant over loaded operating conditions of said gas turbine in which both fuel and air supply to said turbine is modulated, coordinating the modulation of turbine fuel supply and air supply further comprising the steps of: generating a turbine speed error signal by comparing actual turbine speed with a selected turbine reference speed; generating a preliminary turbine exhaust temperature error signal by comparing actual turbine exhaust temperature with a selected turbine exhaust reference temperature; producing a turbine fuel supply control signal in correspondence with said speed error signal; generating a coordinated turbine exhaust temperature error signal by modifying said preliminary turbine exhaust temperature error signal in correspondence with a temperature error modification signal, said temperature error modification signal being processed from said turbine speed error signal with a time delay transfer function; and producing a turbine air supply signal from said coordinated turbine exhaust temperature error signal; said coordinated turbine exhaust temperature error signal providing coordination between said turbine fuel supply signal and said turbine air supply signal so as to maintain the fuel-air mixture in said gas turbine substantially constant.

이 특허를 인용한 특허 (24) 인용/피인용 타임라인 분석

Chandler, Christopher, Automated tuning of gas turbine combustion systems.
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Chandler, Christopher, Automated tuning of gas turbine combustion systems.
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Chandler, Christopher, Automated tuning of gas turbine combustion systems.
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Chandler, Christopher, Automated tuning of gas turbine combustion systems.
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Chandler, Christopher, Automated tuning of multiple fuel gas turbine combustion systems.
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Hook,Richard Bradford; Kress,Eric John; Barrow,William Lee; Bolton,John, Automatic mapping logic for a combustor in a gas turbine engine.
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Riley,Harold J., Auxiliary power unit inlet door position control system and method.
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Vandervort Christian L., Combustion dynamics control for variable fuel gas composition and temperature based on gas control valve feedback.
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Miduturi, Krishna C.; Kozachuk, Danny W., Control system and method for controlling a gas turbine engine during transients.
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Hepner Stephan,CHX ; Wihler Andrew,CHX, Control system for controlling at least one variable of a process as well as a use of such a control system.
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Rajamani Ravi (Schenectady NY) Norman Bruce G. (Charlton NY), Coordinated fuel-air controller for gas turbine without load feedback.
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Zhang, Xiao-Yi, Gas turbine controller and a method for controlling a gas turbine.
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Rajamani, Ravi; Flodman, David Allen; Garry, Robert Scott; Norman, Bruce Gordon; Tomlinson, Leroy, Gas turbine system operation based on estimated stress.
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Yu, Dachuan; Liechty, Michael Parry; Illindala, Mahesh Sitaram; Muller, Matthew Thomas, Hybrid power system with variable speed genset.
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LaGrow, Matthew J.; Teehan, Damien G.; Brahmasandra, Chandrashekar; Venkataraghavan, Janarthanan, Integrated fuel gas characterization system.
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Nag, Pratyush, Integrated fuel gas characterization system.
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Rajamani Ravi, Load rejection rapid acting fuel-air controller for gas turbine.
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Kutzner, Rudiger; Simon, Dieter, Method and control device for controlling a gas turbine set, in particular in gas and steam power stations.
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Gutmark, Ephraim; Paschereit, Christian Oliver, Method and device for affecting thermoacoustic oscillations in combustion systems.
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Hu, John Z.; Gilmore, Jr., Daniel R., Methods and apparatus for estimating gas turbine engine governor dynamics.
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Mosley, Matthew John, Model-based coordinated air-fuel control for a gas turbine.
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Mosley, Matthew John; Long, Christopher Eugene; Ewens, David Spencer, Model-based coordinated air-fuel control for a gas turbine.
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Chandler, Christopher, Optimization of gas turbine combustion systems low load performance on simple cycle and heat recovery steam generator applications.
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McCarthy, John Patrick; Shapiro, Andrew Philip; Williams, George Edward; Butterfield, Eric Gardner; Mattison, Scott Campbell; Russo, Victor Franz; Grant, III, Milton Lewiston, Remote tuning for gas turbines.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Gas turbine coordinated fuel-air control method and apparatus therefor 원문보기