黄河万家寨水电站发电机改造

Renovation of Generators for Wanjiazhai Hydropower Station on The Yellow River

运行过程中出现的定子端部铁心窜出现象是水电站运行的一大安全隐患。通过对万家寨水电站旧定子结构的研究,分析了万家寨6台机普遍存在的端部铁心窜出的主要原因以及可能出现的安全隐患。在发电机改造设计中,在没有改变发电机主要参数的前提下优化了发电机定、转子的结构,通过改造消除了机组的安全隐患。

The phenomenon of stator cores displacement during operation is a major safety hazard in the operation of hydropower stations. Based on the research on the old stator structure of Wanjiazhai Hydropower Station, the main causes for the stator cores displacement of the six units in Wanjiazhai Hydropower Station and the possible safety hazards are analyzed. In the generator renovation design, the structure of the stator and rotor of the generator is optimized without changing the main parameters of the generator, and the safety hazard of the unit is eliminated through the renovation.