水电厂自并励励磁系统逆变失败故障分析与处理  

Fault Analysis and Treatment of Inverter Failure of Self-shunt Excitation System in a Hydropower Plant

作　　者：於华 YU Hua(Guangxi Datengxia Gorge Water Conservancy Development Co., Ltd., Guangxi Guiping 537200, China)

机构地区：[1]大藤峡水利枢纽开发有限责任公司,广西桂平537200

出　　处：《广西电力》2019年第1期72-74,共3页Guangxi Electric Power

摘　　要：介绍了水电厂发电机的灭磁方式,逆变灭磁失败的主要原因以及逆变失败对机组造成的严重后果。结合实际案例分析了某电厂自并励静止励磁系统在停机过程中发生逆变失败的原因,并提出了改进措施。所提出的故障分析和处理方法可为同类逆变失败故障处理提供参考。De-excitation modes of generators in hydropower plants, main reasons of de-excitation failures and serious consequences to generator units caused by inverter failures are introduced. Combined with the practical case, reasons of inverter failures of the static self-shunt excitation system during the shutdown process in a power plant are analyzed and improvement measures are proposed. The proposed fault analysis and treatment methods can provide a reference to similar inverter failures.

关 键 词：水力发电厂 自并励静止励磁系统 逆变灭磁 

分 类 号：TV734[水利工程—水利水电工程]