改进磁偶极子模型在永磁电机场分析中的应用  

Improved Magnetic Dipole Model Application in Analysis of Permanent Magnet Machine Electromagnetic Field

作　　者：张志艳[1,2] 马宏忠[1] 陈诚[3] 梁伟铭[3] 

机构地区：[1]河海大学能源与电气学院,南京211100 [2]郑州轻工业学院电气信息工程学院,郑州450002 [3]上海汽车集团股份有限公司新能源汽车事业部,上海201804

出　　处：《微电机》2012年第8期22-24,71,共4页Micromotors

基　　金：上海汽车工业科技发展基金会基金(1106);国家自然科学基金(51177039);教育部博士点基金(20090944110011)

摘　　要：提出了用于永磁电机中棱柱形永磁体模型的等效方法,即改进磁偶极子模型,详细推导了改进磁偶极子模型中参数的确定和优化过程,包括模型中约束条件、目标函数及检验条件的建立。文末以自起动永磁同步电机作为算例,通过有限元仿真方法,得到了永磁电机指定路径上的电磁场分布结果,并与用Matlab仿真算法实现的改进磁偶极子模型模拟的永磁电机电磁场分析结果进行了对比,验证了该方法的有效性和合理性。The paper presented an equivalent model which was named improved magnetic dipole model using to analyze box permanent magnet electromagnetic field in permanent synchronous motor. And the paper analyzed the process of parameters acquirement and optimization in detail, which included the establishment of constraint conditions, objective function and verification＂ condition. At last, the paper took a line start-per- manent magnet synchronous motor （LSPMSM） as an example and got electromagnetic field distribution of the particular path using finitelement method. At the same time, the paper got the equivalent model of the permanent magnet of LSPMSM by using Matlab software, and got the magnetic flux density B of several repre- sentative points in the particular path. By comparing the two kinds of results, the paper verified the correctness of improved magnetic dipole model.

关 键 词：磁偶极子 永磁体 磁场 永磁电机 有限元 

分 类 号：TM351[电气工程—电机] TM341