600MW汽轮机组负匹配启动及风险分析

Analysis of negative match start and its risk for 600 MW sleam turbine

亚临界600MW汽轮机组在运行状态下，因线路跳闸，执行调度命令紧急拍停。线路开关合环运行后，利用余热，尽快点火冲转机组，达到旋转备用状态，在30％旁路未能正常投入的情况下，采用负匹配方式成功启动。

Due to the line trip, a running suberitieal 600 MW steam turbine executed scheduling command and stopped urgently. After the line breaker closed and operated, used the waste heat to ignite to start unit until rotating standby state achieved. Finally started successfully in the case of 30% bypass failed to normal input by negative match start.