基于独立线圈的动磁式直线同步电机的推力纹波抑制分析

IF 3.5 2区工程技术 Q2 ENGINEERING, MANUFACTURING

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-09-18 DOI:10.1016/j.precisioneng.2024.09.012

Qinwei Sun, Mingyi Wang, Minghong Liu, Chengming Zhang, Liyi Li

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引用次数: 0

摘要

本文提出了一种基于独立线圈结构的新型多次级永磁同步直线电机推力纹波抑制方法。独立线圈结构可通过改变线圈的驱动模式实现每个线圈的独立供电。结合新的供电策略，可以抑制棘爪和电磁力波动。首先，通过周期和矢量边界条件分离动磁铁式直线电机的齿槽力和端面力，并进行谐波分析。建立了基于虚拟磁极的气隙磁场分析模型，解决了电机的反向电磁场和电磁力波动问题。分析了电磁力波动的产生机制和谐波。提出了基于独立线圈的多次级 PMLSM，阐述了抑制电机推力纹波的原理，分析了模块间的耦合效应。最后，提出了零交叉供电策略。仿真和实验结果表明，多次级独立线圈 PMLSM 能有效抑制棘爪和电磁力波动。

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Thrust ripple suppression analysis of moving-magnet-type linear synchronous motor based on independent coil

In this paper, a novel thrust ripple suppression method for multi-secondary permanent magnet synchronous linear motor based on independent coil structure is proposed. Independent coil structure can realize independent power supply for each coil by changing the driving mode of the coils. Combined with the new power supply strategy, the detent and electromagnetic force fluctuation can be suppressed. Firstly, the cogging and end force of moving-magnet-type linear motor are separated by periodic and vector boundary conditions and harmonic analysis is carried out. An analytical model of air gap magnetic field based on virtual magnetic poles is established to solve the back EMF and electromagnetic force fluctuation of the motor. The generation mechanism and harmonic of electromagnetic force fluctuation are analyzed. A multi-secondary PMLSM based on independent coil is proposed, the principle of suppressing motor thrust ripple is expounded, and the coupling effect between modules is analyzed. Finally, a zero-crossing power supply strategy is proposed. The simulation and experimental results show that multi-secondary independent coil PMLSM can effectively suppress the detent and electromagnetic force fluctuation.

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来源期刊

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology 工程技术-工程：制造

CiteScore

7.40

自引率

5.60%

发文量

177

审稿时长

46 days

期刊介绍： Precision Engineering - Journal of the International Societies for Precision Engineering and Nanotechnology is devoted to the multidisciplinary study and practice of high accuracy engineering, metrology, and manufacturing. The journal takes an integrated approach to all subjects related to research, design, manufacture, performance validation, and application of high precision machines, instruments, and components, including fundamental and applied research and development in manufacturing processes, fabrication technology, and advanced measurement science. The scope includes precision-engineered systems and supporting metrology over the full range of length scales, from atom-based nanotechnology and advanced lithographic technology to large-scale systems, including optical and radio telescopes and macrometrology.