Modeling of Fault-tolerant Flux-switching Permanent-magnet Machines for Predicting Magnetic and Armature Reaction Fields  

作　　者：Ying Fang Jinghua Ji Wenxiang Zhao 

机构地区：[1]the School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China [2]IEEE

出　　处：《CES Transactions on Electrical Machines and Systems》2022年第4期413-421,共9页中国电工技术学会电机与系统学报（英文）

基　　金：supported in part by the National Natural Science Foundation of China under Grants 51991383 and 52025073。

摘　　要：The paper develops accurate analytical subdomain models for predicting the magnetic and armature reaction fields in fault-tolerant flux-switching permanent-magnet machines.The entire region is divided into five subdomains,followed by rotor slots,air-gap,stator slots,PM,and external air-gap imported to account for flux leakage.The coil turns and the remanence of magnets are adjusted by keeping the magnetic and electrical loading on the motor constant.The distance between the centers of two adjacent stator slots varies due to the introduction of faulttolerant teeth.According to the variable separation method,the general solution expression of each region can be determined by solving the partial differential systems of equations.The magnetic field distributions of subdomains are obtained by applying the continuity conditions between adjacent regions.Some analytical field expressions are represented as new forms under armature reaction field condition compared to those under no-load condition.Based on the developed analytical models,the flux density distribution and the electromagnetic performance can be calculated under no-load or armature reaction field condition separately.The finite element analysis is carried out to verify the validity of the proposed analytical model.

关 键 词：Armature reaction field Fault-tolerant fluxswitching machines Magnetic field distribution Permanentmagnet machine Subdomain model 

分 类 号：TM351[电气工程—电机]