重庆大学学报2017，Vol.40Issue(12)：16-23,8.DOI:10.11835/j.issn.1000-582X.2017.12.003
电动车用轮毂电机场路耦合分析
Field-circuit coupled analysis on in-wheel motor of electric vehicle
摘要
Abstract
Aiming at the fact that the circuit simulation and electromagnetic analysis method is difficult to accurately take into account the magnetic material permeability nonlinearity,and the finite element method is difficult to analyze the external circuit with non-standard sine excitation,we use the field-circuit coupling method to analyze the efficiency of in-wheel motor for electric vehicle,solve the electromagnetic field finite element equation and the external circuit equation together,and consider the influence of nonlinear factors such as time harmonic current on the magnetic field,to realize the direct coupling of the electromagnetic field quantity and the electrical quantity.The coupling equations of the electromagnetic field and the external circuit of the in-wheel motor,the equation of motion and the power loss are derived,and the load induced electromotive force and power loss are calculated,the difference between the finite element methodand the field-circuit coupling method is compared, then the distribution of power loss density is studied.The efficiency characteristics of the motor under different working conditions are calculated by finite element method and the field-circuit coupling method respectively,and the results show that the field-circuit coupling method is more accurate and the correctness of the analysis method is proved.关键词
轮毂电机/电磁场分析/场路耦合法/效率特性Key words
in-wheel motor/electromagnetic field analysis/field-circuit coupled method/efficiency characteristic分类
信息技术与安全科学引用本文复制引用
张河山,邓兆祥,张羽,妥吉英,杨金歌..电动车用轮毂电机场路耦合分析[J].重庆大学学报,2017,40(12):16-23,8.基金项目
国家高技术研究发展计划("863"计划)项目(2012AA111803) （"863"计划）
重庆市科委攻关项目(CSTC,2010AA6039) （CSTC,2010AA6039）
重庆市研究生科研创新资助项目(CYS15034).Supported by The National High Technology Research and Development Program of China (863Program) (2012AA111803) （CYS15034）
Chongqing Key Technology Program (CSTC,2010AA6039)and 2015 Chongqing University Postgraduates'Innovation Project (CYS15034). （CSTC,2010AA6039）
