M701F型联合循环机组的汽轮机旁路控制系统分析

Analysis on the Steam Turbine Bypass Control System of M701F Combined Cycle Unit

通过分析M701F型燃气-蒸汽联合循环电厂的汽轮机旁路控制系统的功能、运行工况,给出适合联合循环机组汽轮机旁路系统的控制逻辑和动作行为,实现了在机组运行不同阶段进行自动控制的模式,并给出定值形成、参数整定、保护和闭锁逻辑的设计,使旁路控制系统能够实现机组运行和启、停机时的安全稳定,使运行人员更好地掌握机组运行中的旁路系统动态特性,并给事故分析提供重要的理论及实践依据。

Through the analysis of the function and running condition of the steam turbine bypass control system of M701F combined cycle unit,this articles gives the controlling logic which is suitable to gas-steam combined cycle unit,and realizes the automatic control mode in different stage,then gives the design for fixed value forming,parameter adjusting,protect and blocked mode operation logic,which achieves safety and stability when the power units operate,start and stop,further more,it the can give the operators more instructions on accidental analysis.