本文对大型水轮发电机定子、转子和推力轴承等主要部分的几个关键技术问题进行了分析论证,提出整圆装压、合理选取机座刚度、提高定子铁芯和磁轭压紧力、推广双向变极距磁轭叠片方法、采用圆盘式转子支架及大面积支承液压弹性推力轴承等大型水轮发电机技术改进方向和途径. In this paper, several key technical issues of the main parts of the stator, rotor and thrust bearing of a large hydroelectric generator are analyzed and demonstrated. The whole round pressure is put forward, the rigidity of the base is reasonably selected, the compaction force between the stator core and the yoke is increased, Popularize bidirectional variable pole distance magnetic yoke laminating method, adopt disc type rotor support and large area hydraulic hydrodynamic thrust bearing and other large hydroelectric generator technology to improve direction and ways.