转子五自由度磁悬浮的高承载力无轴承磁通切换电机多目标优化设计

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中图分类号：TM351 文献标志码：A 文章编号：1007-449X（2025）09-0093-13

Abstract：In response to the design requirements of high-speed and high-load-bearing bearingless magnetic levitation drive systems，a novel topology for a bearingless flux-switching permanent magnet motor with rotor magnetic levitation in five degrees of freedom was proposed，alongside a corresponding multi-objective efficient optimization design method.Firstly，the topological structure and operational principles of the motor were introduced. Then，considering the plethora of design parameters and optimization objectives inherent in the electromagnetic performance design process，alongside the time-consuming nature of optimization procedures involving parametric scanning in the finite element analysis approach，an efficient optimization design methodology was devised. This methodology consolidates global sensitivity analysis ， response surface modeling，multi-objective optimization，and refined finite element optimization to ascertain the optimal structural parameters of the motor. Furthermore，the electromagnetic performance of the optimized motor was substantiated. Ultimately，an experimental prototype was developed and validated.The results demonstrate that，compared with the theoretical finite element analysis，the measured no-load back-EMF fundamental amplitude exhibits a relative error of 0.1% ，while the actual output torque and suspension force show relative errors of 1.93% and 5.75% ，respectively.

Keywords：high bearing capacity; five degree of freedom; magnetic levitation ; bearingless flux-switching permanent magnet motor；multi-objective optimization； global sensitivity analysis

0引言

无轴承电机具有无摩擦、免维护、结构紧凑的特性，近年来受到了广泛的关注与应用[1]。（剩余16089字）