STEAM TURBINE INLET TEMPERATURE CONTROL SYSTEM COMPUTER PROGRAM PRODUCT AND RELATED METHODS

According to various embodiments of the present invention, a system for controlling the temperature of an inlet of a steam turbine has a computing device and performs operations including: an operation of determining the current steam pressure at an outlet of a heat recovery steam generator (HRSG) a...

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Main Authors NARAYANASWAMY KOWSHIK, TONG LESLIE YUNG MIN, MUNDRA KAMLESH, RANCRUEL DIEGO FERNANDO, RIPLEY TAD RUSSEL
Format Patent
LanguageEnglish
Korean
Published 11.05.2017
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Summary:According to various embodiments of the present invention, a system for controlling the temperature of an inlet of a steam turbine has a computing device and performs operations including: an operation of determining the current steam pressure at an outlet of a heat recovery steam generator (HRSG) and current steam temperature at the outlet of the HRSG; an operation of calculating a specific enthalpy of actual steam within a recessed spatial section of a steam turbine (ST) based on the current steam pressure at the outlet of the HRSG and the current steam temperature at the outlet of the HRSG; and an operation of modifying the temperature of steam entering the ST while corresponding to determination that the calculated specific enthalpy of actual steam in the recessed spatial section is different from a target steam specific enthalpy in the recessed spatial section as much as a critical value, thereby controlling the power station system, including the steam turbine (ST), a gag turbine (GT) and the HRSG flexibly connected to the ST and the GT. 여러 실시예들이, 증기 터빈(ST)의 우묵한 공간 섹션 내의 목표 증기 비엔탈피를 나타내는 데이터를 획득하는 것; 열 회수 증기 발생기(HRSG)의 출구에서의 현재 증기 압력 및 HRSG의 출구에서의 현재 증기 온도를 결정하는 것; HRSG의 출구에서의 현재 증기 압력 및 HRSG의 출구에서의 현재 증기 온도에 기초하여, ST의 우묵한 공간 섹션 내의 실제 증기 비엔탈피를 계산하는 것; 및 우묵한 공간 섹션 내의 계산된 실제 증기 비엔탈피가 임계값만큼 우묵한 공간 섹션 내의 목표 증기 비엔탈피와 상이하다는 결정에 대응하여, ST에 진입하는 증기의 온도를 수정하는 것을 포함하는 작동들을 실행함에 의해, 증기 터빈(ST), 가스 터빈(GT), 그리고 ST 및 GT와 유동적으로 연결되는 열 회수 증기 발생기(HRSG)를 포함하는 발전소 시스템을 제어하도록 구성되는 컴퓨팅 디바이스를 구비하는, 시스템을 포함한다.
Bibliography:Application Number: KR20160140016