摘要
基于有限元法 ,分别采用麦克斯韦应力法和虚位移法对电动车用轮毂式矩形波永磁同步电动机的电磁转矩进行了数值计算。结合实测数据的验证 ,分析了有限元剖分形式对数值计算精度的影响 ;阐述了两种算法在永磁电机电磁转矩计算中各自所具有的特点 ,分析和比较了直槽与斜槽式电机的静转矩特性 ;
The finite element method is applied to analyze a prototype square wave permanent magnet(PM) motors using in electric vehicles.The electromagnetic torques of the motor by means of both methods,Maxwell's stress and virtual displacement methods,with straight and skewed slots are determined.To reduce the computation error,the technics of mesh division are discussed.Moreover,the electromagnetic torques while the phase of current leads the EMF,and the oriented torques with straight and skewed slots are also calculated and discussed.Compared with test values,it is shown that the numerical results have satisfied accuracy.
出处
《电工技术学报》
EI
CSCD
北大核心
2002年第6期15-18,共4页
Transactions of China Electrotechnical Society
基金
浙江省自然科学基金资助项目 (5 990 75 )
