Slot-Pole Combination Analysis of FSCW-PMVM on Magnetic Field Modulation Performance

IF 8.3 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Transportation Electrification Pub Date : 2024-10-31 DOI:10.1109/TTE.2024.3487869

Rongxin Wang;Bo Wang;Dewen Tian;Haiwei Cai;Ming Cheng;Wei Hua

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Abstract

The impact of slot-pole combinations on the magnetic field modulation performance of permanent magnet vernier machines (PMVM) is analyzed in this article. First, the working principle of PMVM is analyzed, slot-pole combination constraints are formulated, and a topology group is constructed. Then, the relationship between slot-pole combinations, modulation ratios, magnetic field modulation harmonics, and harmonic torque contribution is examined. Further, a design method for a multidegree of freedom modulator is proposed to maximize the torque output capacity. Due to the improved airgap permeance, the magnetic field modulation capability of low modulation ratio topologies is significantly enhanced, achieving a 40% increase in output torque. Thus, the high-torque PMVM could be realized with low pole pairs which eases manufacturing and control. Finally, a similar torque performance of the low modulation ratio machine 18s50p and the high modulation ratio machine 18s56p is successfully achieved by global parameter optimization. The two prototype motors are manufactured and tested to verify the correctness of the analysis.

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FSCW-PMVM 的槽极组合对磁场调制性能的影响分析

分析了槽极组合对永磁游标机磁场调制性能的影响。首先，分析了PMVM的工作原理，建立了槽极组合约束，构造了拓扑群；然后，研究了槽极组合、调制比、磁场调制谐波和谐波转矩贡献之间的关系。在此基础上，提出了一种多自由度调制器的设计方法，使其转矩输出能力最大化。由于气隙磁导率的提高，低调制比拓扑的磁场调制能力得到了显著增强，输出转矩增加了40%。因此，可以用低极副实现大转矩PMVM，简化了制造和控制。最后，通过全局参数优化，成功实现了低调制比电机18s50p和高调制比电机18s56p的相似转矩性能。制造了两台原型电机并进行了测试，以验证分析的正确性。

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来源期刊

IEEE Transactions on Transportation Electrification Engineering-Electrical and Electronic Engineering

CiteScore

12.20

自引率

15.70%

发文量

449

期刊介绍： IEEE Transactions on Transportation Electrification is focused on components, sub-systems, systems, standards, and grid interface technologies related to power and energy conversion, propulsion, and actuation for all types of electrified vehicles including on-road, off-road, off-highway, and rail vehicles, airplanes, and ships.