为准确而快速地计算与评估电机的性能,以I型转子结构永磁电机为例,提出了一种计及多因素影响的空载气隙磁密的解析计算法,并用有限元进行了仿真验证。分析了永磁体尺寸、隔磁桥高度和极弧系数等参数对气隙磁密的影响规律,为优化电机方案提供了思路。

In order to calculate and evaluate the performance of the motors accurately and quickly, an analytical approach for determining noload airgap flux density of permanent magnet motors considering multi factors based on the I type rotor structure was proposed. A prototype of 48slot 8pole permanent magnet motors was simulated, and the good agreement between the calculated data and the simulated data verified the validity of the proposed analytical approach. The influence of parameters such as permanent magnet size, height of isolation bridge and pole arc coefficient on air gap flux density was analyzed, which provided a way to optimize the motors scheme.

TM 351

上海市产学研合作年度计划项目(沪CXY2015014)