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标题:无轭分块电枢轴向磁场永磁电机的二维等效有限元模型分析与验证
作者:徐龙江,徐衍亮
2018年第10期 访问次数:40次

摘要:无轭分块电枢轴向磁场永磁电机具有高的功率密度和效率,被广泛应用于电动汽车当中。通常情况下,无轭分块电枢轴向磁场永磁电机需要用三维有限元的方法进行分析,然而三维有限元法耗时较长,不利于电机的初始分析。为了节省电机的计算时间同时保证一定的精度,提出一种将三维结构的无轭分块电枢轴向磁场永磁电机转化为二维结构的无轭分块电枢等效直线永磁电机的方法,基于该方法,电机的性能可以通过二维有限元进行计算,该等效模型的精确性通过对比三维有限元的计算结果和实验结果进行了验证。
关键词:无轭分块电枢电机;轴向磁场;软磁复合材料;二维有限元模型
Abstract: Yokeless and segmented armature (YASA) axialflux permanent magnet (AFPM) machine has high power density and efficiency, which has been widely applied in electric vehicles. In general, the YASAAFPM machine has to be analyzed by 3D finiteelement method (FEM) with the penalty of highly timeconsuming. However, the 3D FEM is highly timeconsuming and is not suitable for the initial analysis of the machine. To reduce the computing time while remaining the high accuracy, this paper presented an approach of transforming the YASAAFPM machine into a 2D YASA equivalent linear permanent magnet (ELPM) machine. Based on which, the performances can be rapidly calculated by 2D FEM. Accuracy of the proposed equivalent model was verified by the comparison of magnetic equivalent circuit (MEC), 2D FEM, 3D FEM and experimental results.
Key words: yokeless and segmented armature machine; axialflux; soft magnetic composite; 2D equivalent finiteelement model

 

 
 
 
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