Internal Model Control of Bearingless Flux Switching Permanent Magnet Synchronous Motor With Rotor Magnetic Suspension Based on Suspension Current Reconstruction

ZHOU Yangzhong; CHEN Dongyuan; LIANG Tongwei; LIN Jialong

doi:10.13334/j.0258-8013.pcsee.240955

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Internal Model Control of Bearingless Flux Switching Permanent Magnet Synchronous Motor With Rotor Magnetic Suspension Based on Suspension Current Reconstruction

更新时间：2026-10-12

- Internal Model Control of Bearingless Flux Switching Permanent Magnet Synchronous Motor With Rotor Magnetic Suspension Based on Suspension Current Reconstruction
- Issue 21, Pages: 8594-8604(2025)
- 作者机构：
  
  福建省新能源发电与电能变换重点实验室(福州大学),福建省,福州市,350108
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.240955
  CLC：
- Published：2025
- 稿件说明：
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ZHOU Yangzhong, CHEN Dongyuan, LIANG Tongwei, et al. Internal Model Control of Bearingless Flux Switching Permanent Magnet Synchronous Motor With Rotor Magnetic Suspension Based on Suspension Current Reconstruction[J]. 2025, (21): 8594-8604.
DOI：

ZHOU Yangzhong, CHEN Dongyuan, LIANG Tongwei, et al. Internal Model Control of Bearingless Flux Switching Permanent Magnet Synchronous Motor With Rotor Magnetic Suspension Based on Suspension Current Reconstruction[J]. 2025, (21): 8594-8604. DOI： 10.13334/j.0258-8013.pcsee.240955.

摘要

针对双绕组无轴承磁通切换电机驱动系统中转子径向磁悬浮动力学模型严重的耦合、非线性及多占比的未建模制约转子径向悬浮控制性能提高的难题，提出一种基于悬浮电流重构的解耦动力学模型，并基于此进一步提出转子径向悬浮内模控制策略。首先，基于有限元法及拉格朗日方程推导转子径向悬浮子系统动力学模型；接着，从抵消动力学模型的已知特征项与不确定项角度，重构悬浮电流，获得两悬浮通道解耦的动力学模型；最后，基于比例和微分因子，设计快速动态响应及强稳定的转子径向磁悬浮内模控制策略。实验结果证明所提控制策略的有效性。

Abstract

In order to solve the problem that the rotor radial suspension dynamics model in the double-winding bearingless flux switching permanent magnet motor drive system is seriously coupled

nonlinear and unmodeled with a large proportion

which restrict the rotor radial suspension control performance

a decoupling dynamic model based on suspension current reconstruction is proposed

and based on this

the rotor radial suspension internal model control strategy is further proposed. Firstly

the dynamic model of rotor radial suspension subsystem is derived based on finite element method and Lagrange equation. Then

from the Angle of canceling the known feature terms and uncertainty terms of the kinetic model

the suspension current is reconstructed

and the dynamic model of the decoupling of the two suspension channels is obtained. Finally

based on the proportion and differential factors

the rotor radial magnetic suspension internal model control strategy with fast dynamic response and strong stability is designed. The experimental results demonstrate the effectiveness of the proposed control strategy.

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