摘  要：无轴承永磁同步电机同时具备永磁同步电机的优良特性与磁悬浮轴承的特点。分析了国内外无轴承永磁同步电机研究现状，指出其发展规律；总结了目前国内外无轴承永磁同步电机结构与控制策略方面的研究成果，为其结构改进与控制优化提供参考；分析了无轴承永磁同步电机发展趋势，为其研究工作指出方向。
关键词：无轴承电机；永磁同步电机；研究现状；电机结构；控制策略；发展趋势

Abstract: A bearingless permanent magnet synchronous motor(PMSM)is a high performance PMSM adopting bearingless technology,and has the excellent characteristics of PMSM and the features of magnetic bearing.Based on the method of document statistics,analyzed international and domestic research status of bearingless PMSMs,and pointed out the development law.Research results in motor structure aspect and control strategy aspect of bearingless PMSMs give an important reference for bearingless PMSMs- structure improvement and control optimization.Analyzed the development trend,which show clearly direction to the future research on bearingless PMSMs.
Key Words: Bearingless motor;Permanent magnet synchronous motor;Research status;Motor structure;Control strategy;Development trend