袁志东,贾少锋,梁得亮

• 1:西安交通大学电力设备电气绝缘国家重点实验室
• 2:西安交通大学电气工程学院

摘要(Abstract)：

针对实心转子铁心式永磁游标电机在运行过程中，转子铁心产生的涡流损耗远大于常规永磁电机的问题，对实心钢转子铁心中的涡流损耗产生机理进行了研究，并提出一种能够有效减小其涡流损耗的转子结构。首先，从永磁游标电机(VPM)的磁场特性和涡流损耗产生机理出发，对比了采用实心钢转子铁心的传统永磁电机和VPM电机，得出VPM电机具有更大的转子涡流损耗，并分析了其产生原因；随后，提出一种转子开槽的新型VPM电机结构，该结构可以在保证电机转矩基本不变的情况下，大幅减小转子涡流损耗；最后，通过三维有限元计算，验证了所提结构的有效性。结果表明：实心转子铁心式VPM电机的转子铁心涡流损耗是传统永磁电机的26.85倍；采用文中所提的电机结构，可以在输出转矩下降不到5%的情况下，转子涡流损耗减小达到67.2%。研究结果可为VPM电机的工业应用和推广提供参考。

关键词(KeyWords)： 永磁游标电机;实心钢转子铁心;磁场调制;涡流损耗;转子开槽

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目（52277066）

作者(Author): 袁志东,贾少锋,梁得亮

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