介绍了IE4效率等级的变频调速三相永磁同步电机系列产品的研制工作。为了提高设计精度和缩短设计周期，本系列产品的电磁设计采用了基于场路结合的设计方法。一方面提升了设计的合理性，产品性能指标可以满足标准要求；另一方面合理的磁路设计提升了电机的功率密度，减小了电机的体积，本系列产品比通用系列产品普遍降低了1~2个机座号，降低了材料成本。通过样机试制和型式试验，验证了系列电机设计的合理性，为国内IE4通用型变频调速三相永磁同步电机研究提供参考。

The development of variable frequency speed regulation three-phase permanent magnet synchronous motor series products with IE4 efficiency grade is introduced. In order to improve the design accuracy and shorten the design cycle, the electromagnetic design of this series of products adopts the design method based on the combination of field and circuit. On the one hand, it improves the rationality of the design, and the product performance index fully meets the standard requirements. On the other hand, the reasonable magnetic circuit design improves the power density of the motor and reduces the volume of the motor. Compared with the general series products, this series generally reduces 1~2 frame numbers and reduces the material cost. Through prototype trial production and type test, the rationality of series motor design is verified, which provides a reference for IE4 general variable frequency speed regulation three-phase permanent magnet synchronous motor research in China.

上海市经济和信息化委员会工业互联网创新发展专项资金电机行业标识解析二级节点应用服务平台项目（2020-GYHLW-02006）