Coupled Electromagnetic-Thermal-Fluidic Analysis of Permanent Magnet Synchronous Machines with a Modified Model

作     者：Gaojia Zhu Xiaoming Liu Longnv Li Hai Chen Jianguo Zhu 

作者机构：Key Laboratory of Advanced Electrical Engineering and Energy TechnologyTianjin Polytechnic UniversityTianjin300387 China 

出 版 物：《CES Transactions on Electrical Machines and Systems》 (中国电工技术学会电机与系统学报（英文）)

年 卷 期：2019年第3卷第2期

页      面：204-209页

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

基　　金：This work was supported in part by the National Natural Science Foundation of China under Grant 51337001 and 51777136 

主　　题：Cell method(CM) model modification mul-ti-physics coupled problems permanent magnet synchronous machine(PMSM). 

摘      要：The researches on the heat generation and dissipa-tion of the permanent magnet synchronous machines(PMSMs)are integrated problems involving multidisciplinary studies of electromagnetism,thermomechanics,and computational fluid *** governing equations of the multi-physical prob-lems are coupled and hard to be solved and *** high accuracy mathematical model in the algebraically integral con-servative forms of the coupled fields is established and computed in this *** the equation coupling with the fluid flow and the temperature variation is modified to improve the positive definiteness and the symmetry of the global stiffness *** computational burden is thus reduced by the model modification.A 20kW 4500rpm permanent magnet synchronous machine(PMSM)is taken as the prototype,and the calculation results are validated by experimental ones.