隔河岩电厂机组停机导叶关闭过慢原因分析

摘要

调速系统开停机正常与否直接影响机组安全稳定运行。介绍了隔河岩电厂调速器机械液压控制系统工作原理，对机组停机导叶关闭过慢问题，从电气到机械进行了详细的分析处理。%Normal function of the speed governing system is critical for the safe and reliable operation of generator units. While abnormal slow closing of the wicket gate during unit shutdown is observed in Geheyan Hydropower Station.Based on the introduction of working principles for the mechanical and hydraulic control system in the speed governor, the slow closing problem is analyzed in detail from both the electrical and mechanical aspects.