电工技术学报2016，Vol.31Issue(23)：46-53,8.
轴向磁通永磁同步电机转矩解析模型和转矩优化
Analytical Model and Optimization of Torque of an Axial Flux Permanent Magnet Synchronous Motor
摘要
Abstract
Axial flux permanent magnet synchronous motors(AFPMSM)have an intrinsic 3-D electromagnetic structure.Its accurate modeling and optimization of torque usually require the use of 3-D finite element analysis(FEA),which is highly time consuming.This paper presents a new torque analytical model and then it was used to optimize the torque of an AFPMSM.Firstly,the analytical model of magnetic field was established by using magnetic potential and relative permeance.Then,electromagnetic torque and cogging torque analytical models were derived based on Maxwell-tensor method.Finally,3-D FEA was presented for verifying the accuracy of the proposed model.The analytical model indicates the criterion to produce electromagnetic torque and cogging torque.It also clears the relationship between the order components of torque and the harmonic field.Based on the analytical model,the torque of a virtual AFPMSM with one stator and one rotor was optimized by triangular skew method.The result shows that the triangular skew method can greatly decrease the cogging torque and electromagnetic torque ripple,and the analytical method is really high efficient.关键词
轴向磁通永磁同步电机/转矩/解析模型/转矩优化Key words
Axial flux permanent magnet synchronous machines/torque/analytical model/torque optimization分类
信息技术与安全科学引用本文复制引用
左曙光,吴双龙,吴旭东,沈健,林福..轴向磁通永磁同步电机转矩解析模型和转矩优化[J].电工技术学报,2016,31(23):46-53,8.基金项目
国家自然科学基金项目(51375343)和国家重大科学仪器开发专项(2012YQ150256)资助. （51375343）
