西门子SGT5-4000F型燃机启动及转速负荷控制解析

Analysis of Start up and Speed Load Control of Siemens SGT5-4000F Gas Turbine

重点介绍孟加拉古拉绍电厂燃气-蒸汽联合循环300~450 MW工程7号机组SGT5-4000F型燃机在启动及转速负荷控制阶段的模拟量控制系统相关控制逻辑,绘制值班阀、预混阀、启动控制器、转速负荷控制器、转速设定值和负荷设定值控制逻辑简图,同时也给出了控制逻辑图中相关参数、函数曲线值和计算方法,并对燃气轮机启动过程进行详细解析,可为同类机组在燃气轮机调试、运行及检修维护方面提供借鉴。

It emphatically introduces the relevant control logic of the analog control system of start-up phase and speed load control phase of the Siemens SGT5-4000F gas turbine of Unit 7 in the 300~450 MW gas-steam combined cycle project of Ghorasal Power Plant in Bangladesh.It draws the control logic diagram of pilot gas valve,premix valve,start controller,speed load controller,speed setpoint and load setpoint.It also gives the relevant parameters,the function curve values and calculations method of the control logic diagram.The gas turbine start-up process is analyzed in detail.It provides reference experience for the same type of unit in the gas turbine commissioning,operation and maintenance.