1000MW超超临界机组全程背压修正及滑压优化研究  

Research on Modification and Optimization of Back Pressure and Sliding Pressure in 1000MW USC units

作　　者：吴永存 罗志浩[2] 陈卫[2] 包劲松[2] 

机构地区：[1]浙江国华浙能发电有限公司 [2]浙江省电力试验研究院

出　　处：《电站系统工程》2012年第2期22-24,共3页Power System Engineering

摘　　要：分析了背压式凝汽机组真空变化对1000 MW机组协调控制参数的影响,提出了真空变化对机组协调控制的修正方法;另外对于机组全过程滑压运行过程,项目实施中通过试验整定出各负荷段合理的主蒸汽压力定值,并通过背压修正,使汽机调门维持在经济运行开度附近,在兼顾AGC及调频能力的基础上获取了最优化的滑压曲线,有效提高了机组的热效率,降低了机组煤耗,实现了机组全季节全程滑压运行的优化。The effects of parameters between the back pressure of condenser with 1000MW USC unit coordination control are analyzed, and the correction method of coordination control unit once vacuum change is put forward. In addition to the whole operation process of the sliding pressure, the implementation of the projects set reasonable main steam pressure setting value of each load period through the test, to maintain economic operation in governing valve opening, insure AGC and FM ability for the optimal sliding pressure curve such to reduce the unit coal consumption, realize the whole unit sliding pressure operation of the whole season optimization.

关 键 词：1000MW超超临界机组 背压修正 滑压优化 协调控制 

分 类 号：TM621.6[电气工程—电力系统及自动化]