关键词: 交流发电机, 电机绕组工艺, 波形绕组, 工艺优化

Abstract: Alternating current ( AC) generators have high requirements for reliability,stability,and durability. Existing research has confirmed that insulation wear and local abnormal high temperatures at the winding ends are the core causes of stator failure. To solve this problem,a dual waveform winding scheme is proposed to optimize the overlapping structure of the stator winding ends. Build single wave winding and double wave winding prototypes for comparison, conduct cold and hot state electrical performance, waveform spectrum, temperature rise, and noise testing, and retest after completing durability testing. The results show that the dual wave winding does not change the inherent frequency spectrum characteristics of the motor,can reduce the amount of copper used in the stator by 11. 5 g,and has a significant effect on suppressing voltage and current ripple. After the durability test,the thermal output power increased by 0. 79%. The maximum temperature rise of the stator decreased by 6. 14%,and the maximum noise during operation decreased by 5. 23%.

Key words: alternating current generators, motor winding process, wave winding, process optimization