Study on the Consequent-Pole Linear Motor with Magnetically Conductive Blocks in the Primary Stage

Xuanfeng Shangguan; Qi Wang; Xin Wang; Yu Xie

doi:10.6919/ICJE.202504_11(4).0042

Authors

Xuanfeng Shangguan
Qi Wang
Xin Wang
Yu Xie

DOI:

https://doi.org/10.6919/ICJE.202504_11(4).0042

Keywords:

U-type Permanent Magnet Synchronous Linear Motor; Magnetic Potential Function; Specific Magnetic Permeability; Multi-objective Optimization Design.

Abstract

A new structure U-type permanent magnet linear synchronous motor is proposed and analyzed. The secondary permanent magnet pole potential function and the air-gap specific permeability function are established to find the analytical solution of the no-load magnetic field of the motor by the method of the road, and the harmonic analysis of the air-gap flux density (radial component) is carried out. The finite element method is used to analyze the influence of some structural parameters of the motor on electromagnetic thrust and thrust fluctuation, and the sensitivity analysis of structural parameters is done by Taguchi's experimental design method to determine the optimization variables. The response surface method is used to obtain the fitting function between thrust, thrust fluctuation and optimization variables. With thrust and thrust fluctuation as the optimization objectives, the multi-objective optimization design of the motor is carried out using the White Heron algorithm. The finite element analysis results verify the validity of the theoretical analysis.

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