多极比单绕组换极永磁电机设计与分析

IF 1.3 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Liyan Guo, Yi Yang, Huimin Wang
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引用次数: 0

摘要

在高速应用中,换极永磁电机(PCPM)比传统的永磁同步电机(PMSM)更具优势。然而,改变电机的极数需要重建定子绕组。这就增加了成本和复杂性。为解决这一问题,本文提出了一种新型单绕组 PCPM 电机,其极槽组合满足 2pa + 2pb = Z(换极前后电机极数之和等于槽数)规则。通过将单绕组结构与满足 pa + pb = Z(换极前后电机极对数之和等于槽数)规则的另一种单绕组结构相结合,可实现 PCPM 电机的多极比换极。通过这种方法,换极时无需重建定子绕组,只需改变电枢电流的相序和方向,即可快速完成切换过程,实现在线换极。这种单绕组换极方法可以灵活地实现三种极数模式的转换,而不会增加额外的绕组成本和复杂性。最后,通过有限元分析(FEA)验证了所提换极方法的合理性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Multi-pole ratio single-winding pole-changing permanent magnet motor design and analysis

Multi-pole ratio single-winding pole-changing permanent magnet motor design and analysis

Pole-changing permanent magnet (PCPM) motors have advantages over traditional permanent magnet synchronous motors (PMSM) in high-speed applications. However, changing the pole number of a motor requires reconstructing the stator winding. This increases both the cost and complexity. To solve this problem, a new type of single-winding PCPM motor with a pole-slot combination satisfying the rule of 2pa + 2pb = Z (the sum of the number of poles of the motor before and after the pole-changing is equal to the number of slots) is proposed in this paper. The multi-pole ratio pole-changing of the PCPM motor can be realized by combining the single-winding structure with another single-winding structure that satisfies the pa + pb = Z (the sum of the number of pole pairs of the motor before and after the pole-changing is equal to the number of slots) rule. Through this method, there is no need to reconstruct the stator winding when a pole is changed, Only by changing the phase sequence and direction of the armature current, the switching process is rapid, and the online pole-changing can be realized. This single-winding pole-changing method can flexibly realize the conversion of three pole number modes without increasing the additional winding cost and complexity. Finally, the rationality of the proposed pole-changing method is verified by finite element analysis (FEA).

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来源期刊
Journal of Power Electronics
Journal of Power Electronics 工程技术-工程:电子与电气
CiteScore
2.30
自引率
21.40%
发文量
195
审稿时长
3.6 months
期刊介绍: The scope of Journal of Power Electronics includes all issues in the field of Power Electronics. Included are techniques for power converters, adjustable speed drives, renewable energy, power quality and utility applications, analysis, modeling and control, power devices and components, power electronics education, and other application.
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