内置式交替极永磁同步电机性能及机理研究

2018年6月电工技术学报Vol.33 No.11 第33卷第11期TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY Jun. 2018 DOI：10.19595/https://www.360docs.net/doc/a78690826.html,ki.1000-6753.tces.170506

内置式交替极永磁同步电机性能及机理研究

樊英谭超

（东南大学电气工程学院南京 210096）

摘要分析比较了传统内置式永磁同步电机与内置式交替极永磁同步电机的电磁性能。设计了一台五相20/18槽极组合的内置式交替极永磁同步电机，与传统内置式永磁同步电机相比，该

电机在保持较好的输出能力的情况下节省了永磁体用量，提高了电机的可靠性且节省了成本。利

用磁路法及气隙磁通密度波形的傅里叶解析计算得到每极下气隙基波磁通，验证了交替极设计可

提高永磁体的利用率。与传统内置式永磁同步电机不同，内置式交替极永磁同步电机中永磁极极

弧的选择范围更大，通过合理优化永磁极与铁心极的配合能够进一步提升该电机的输出转矩。其

次，比较分析了内置式交替极永磁同步电机的反电动势谐波分量，发现该电机更加适用于谐波电

流注入法，且分别对永磁体端部槽形、永磁体磁化方向长度及不均匀铁心极极弧进行优化设计，

使得优化后的内置式交替极永磁同步电机在明显减少永磁体用量的情况下能够保持较好的输出能

力，且具有更好的转矩质量及弱磁能力。

关键词：永磁同步电机交替极有限元法电磁性能

中图分类号：TM351

Analysis of Electromagnetic Performance and Principles in Inserted Consequent-Pole Permanent Magnet Synchronous Machines

Fan Ying Tan Chao

（School of Electrical Engineering Southeast University Nanjing 210096 China）

Abstract Based on finite element method, the electromagnetic performances of traditional inserted permanent magnet synchronous machine (IPMSM) and inserted consequent-pole permanent magnet synchronous machine (ICPPMSM) are compared and analyzed. In this paper, a five-phase 20-

slot 18-pole ICPPMSM is proposed. Compared with the traditional inserted V-shaped machine with same design parameters, the proposed consequent-pole machine can obviously save the amount of PMs but maintain the comparable output capability, which can improve reliability and save costs. Magnetic circuit and Fourier series analysis are applied to compute fundamental amplitude of airgap flux under each pole.

The analytical results demonstrate the configuration of consequent-pole can increase the utilization ratio of PMs. Besides, unlike the traditional IPMSM, the pole-arc of PM-pole in ICPPMSM has wider selection range. By choosing pole-arc of PM-pole and iron-pole, the output performance of ICPPMSM can be further improved. Based on harmonic analysis of induced voltage, the harmonic current injection is more suitable for ICPPMSM. Finally, flux barriers, PM magnetizing length and unequal iron-pole are optimized to acquire better torque quality and flux weakening.

Keywords：Permanent magnet synchronous machines, consequent-pole, finite element analysis, electromagnetic performance

国家自然科学基金项目资助（61374125，51177012）。

收稿日期 2017-04-24 改稿日期 2017-11-27

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