大型水轮发电机调速器主配压阀频繁抽动问题分析及处理  

Analysis and Treatment of Frequent Pulling of the Main Distribution Valve in the Governor of Large Hydroelectric Generator

作　　者：耿晓育 刘照友 张俊杰 GENG Xiaoyu;LIU Zhaoyou;ZHANG Junjie(Yunnan Huadian Jinsha River Midstream Hydropower Development Co.,Ltd.,Liyuan Power Generation Branch,Lijiang 674100,China)

机构地区：[1]云南华电金沙江中游水电开发有限公司梨园发电分公司,云南丽江674100

出　　处：《云南水力发电》2024年第6期30-32,共3页Yunnan Water Power

摘　　要：梨园水电站因主配位移传感器异常导致主配频繁抽动,通过更换两路新的位移传感器,进行主配电气零位调整后再次进行快速开关导叶试验,得出主配位移传感器使用年限接近电子元件使用寿命后,传感器的线性度和灵敏度会存在一定程度上的失真从而导致调速器主配位移传感器反馈异常,进而造成主配频繁抽动的结论。通过采取相应的防范措施,对确保水电站机组长周期安全可靠稳定运行有着重要意义。Liyuan hydropower station's main distribution system frequently shakes due to abnormal displacement sensors.By replacing two new displacement sensors and adjusting the zero position of the main electrical system,a quick switch guide vane test is conducted again.The results indicate that when the service life of the main displacement sensor approaches the service life of electronic components,there will be a certain degree of distortion in the linearity and sensitivity of the sensor,leading to abnormal feedback from the main displacement sensor of the governor,which in turn causes frequent jerking of the main displacement sensor.It is of great significance to ensure the safe,reliable,and stable operation of hydroelectric power plants over a long period of time by taking corresponding preventive measures.

关 键 词：水电站 主配压阀 频繁抽动 原因分析 应急处置 防范措施 

分 类 号：TV734.21[水利工程—水利水电工程] TK243.6[动力工程及工程热物理—动力机械及工程]