The ventilation cooling effect of the stator end winding of the motor generator in a domestic pumped storage power station is not good,and the temperature rise is high.Long-term operation will cause accelerated aging of the wire rod insulation.The author analyze the reasons for the high temperature rise at the end of the stator winding,propose a transformation scheme of ventilation system,and use classical network method and CFD fluid analysis method to analyze the transformation scheme of ventilation system.The experimental results show that the temperature rise at the end of the stator winding has significantly decreased after the transformation,and the transformation effect is significant.The practical results of the transformation can provide some reference for the design of ventilation systems for similar units.
关键词
通风系统改造/发电电动机/定子绕组端部/抽水蓄能电站
Key words
ventilation system transformation/motor generator/stator end winding/pumped storage power station
维普
万方数据