一种燃气蒸汽联合循环机组自启停控制系统

A Kind of Automatic Plant Start-up and Shut Down System of Combined Cycle Power Plant Unit

燃气蒸汽联合循环机组启停频繁,单机年均启停次数多。国内机组的顺控或自启停大多由于不完善或不适用而被闲置。介绍一种有效的9F燃气蒸汽联合循环机组自启停控制系统,实现了燃气轮机启动准备、点火、并网、带初负荷,直至带基本负荷的整个过程,也实现了机组从带基本负荷到停机的整个过程。自启停投用后机组启动时间(特别是热态启动时间)缩短,辅助设备用电量降低,机组运行人为干预减少,机组可靠性和经济性明显提高。

The combined cycle unit starts and stops frequently. The sequence control or automatic plant start-up and shut down system of domestic units are mostly idle due to imperfection or inapplicability. An effective automatic plant startup and shut down system for 9F combined cycle unit realizes the whole process of gas turbine start-up preparation, ignition, grid connection, with initial load,withbasic load, as well as the whole process of unit from basic load to shutdown.With the system, the unit start-up time(especially the hot start-up time) is shortened, the power consumption of auxiliary equipment is reduced, the human intervention of unit operation is reduced, and the reliability of the unit are improved.