Li Jin. ANALYSIS OF HIGH-PRESSURE GOVERNOR VALVE'S FLUTTER IN DEN CONTROL SYSTEM OF A 600MW UNIT AND TREATMENT THEREOF[J]. Thermal power generation, 2003, (8): 43-45.
Li Jin. ANALYSIS OF HIGH-PRESSURE GOVERNOR VALVE'S FLUTTER IN DEN CONTROL SYSTEM OF A 600MW UNIT AND TREATMENT THEREOF[J]. Thermal power generation, 2003, (8): 43-45. DOI: 10.19666/j.rlfd.2003.08.014.
600MW机组DEH控制系统高压调门抖动分析及处理
摘要
根据DEH控制回路的构成特点以及具体应用情况
对机组运行过程中出现的调门抖动原因作出分析
并对处理过程进行了总结。认为由控制回路引起的调门抖动是可以克服的
但由控制系统硬件方面引起的调门抖动
在保证汽机安全稳定运行的前提下
只好采用牺牲回路冗余度的方法加以解决
Abstract
Based on structural features and concrete application situation of DEN control circuit
the causes leading to governor valve's flutter occurred in the process of operation have been analysed
and a summary of the treatment processes being made. It is considered that the governor valve's flutter resulting from the control circuit can not be completely overcome
but because of being limited by hardware condition of the said control system
it is forced to sacrifice redundancy of the said circuit under prerequisite of ensuring firstly the safe and stable operation of unit.