Improved Hybrid Method to Calculate Inductances of Permanent Magnet Synchronous Machines with Skewed Stators Based on Winding Function Theory

作     者：Yuting Gao Ronghai Qu Dawei Li 

作者机构：State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China 

出 版 物：《Chinese Journal of Electrical Engineering》 (中国电气工程学报（英文）)

年 卷 期：2016年第2卷第1期

页      面：52-61页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：National Natural Science Foundation of China under Grant 51520105010 

主　　题：Finite element analysis(FEA) inductances permanent magnet synchronous machine(PMSM) skewing winding function theory(WFT). 

摘      要：An improved hybrid method combining two dimensional(2D)finite element analysis(FEA)and the analytical method is put forward to calculate the stator winding inductance and synchronous inductance influenced by stator skewing *** on winding function theory(WFT),the improved method proposes two factors to describe variable inductances along the stator skewing *** simulations are then performed on three interior permanent magnet synchronous machines(IPMSMs),one normal and two skewed machines(half slot and one slot pitch skewing respectively).Extensive experiments are conducted on relevant prototypes with good ***,analysis and comparisons are made as to the influence of different skewing angles on the inductances and torque-speed *** is found that Ld increases and Lq decreases by skewing,leading to the reduction of the rotor saliency and maximal torque capability,but increase of the flux weakening capability.