【摘要】 研究了一种采用叠加式励磁绕组的自起动双速凸极同步发电电动机，这种电机转子可采用叠片磁极，无需其他任何辅助阻尼绕组，而使其在电动机运行时能够实现直接异步起动，同时在发电机运行时又兼有阻尼绕组的作用，从而使其转子结构大为简单化。实验结果表明，这种电机及其起动方法是有效的。更多还原

【Abstract】 A self-starting two-speed salient- pole synchronous generator/motor with an additionalfield winding is presented. The rotor is assembled with laminated stampings without damp-ing windings. It can be asynchronously started with the direct on-line method as a motor. When it is running as a generatort the field winding will play the role of the damping wind- ing. The feasibility of this starting method is proved by experiment.更多还原