西霞院反调节电站水轮机组投运初期的问题及改造  

Problems and Improvement of Generator Operation at Initial Stage for Xixiayuan Counter Regulation Hydropower Plant

作　　者：张炳月 杜惠彬 聂元辉 

机构地区：[1]小浪底水利枢纽建设管理局水力发电厂,河南济源459017

出　　处：《水电能源科学》2011年第10期121-123,217,共4页Water Resources and Power

摘　　要：针对西霞院电站机组在投产初期暴露出的突出问题,对机组进行了一系列的优化改造,优化了计算机监控系统开停机流程,取消了一些不必要的事故停机信号;增强了调速器系统的运行可靠性,改进了技术供水系统运行方式;提高了自动开停机成功率和机组主辅机系统的运行可靠性,解决了瓦温异常、主轴密封水信号异常和顶盖水位高导致机组停机等问题;经实践运行检验,机组运行可靠性得到了明显改善。Aiming at the highlighted problems exposed at the initial operation stage of generator for Xixiayuan hydropower station, a series of improvements are implemented, such as optimizing start-stop program of computer monitoring system, canceling some unnecessary trip signals, enhancing operation reliability of governor system and improving operation mode of technical water supply. Therefore, it increases the success rate of automation start-stop and operation reliability of generator system. At the same time, some stopping problems of generator are solved, which includes abnormal temperature of bearing shell, the abnormal signal of main axes sealing water and high water level of head cover. Practical instances show that the operation reliability of generator is improved obviously.

关 键 词：机组运行 可靠性 技术改造 西霞院反调节电站 

分 类 号：TV734[水利工程—水利水电工程] TV741