Performance analysis and optimization of secondary U-shaped double-sided toroidal winding linear permanent magnet vernier machine
Year: 2024
Type: article
Abstract: Aiming at the issues of low thrust density, significant thrust ripple, the lengthy end and the large axial attraction force in conventional single-sided distributed winding linear permanent magnet vernier machine (LPMVM), this paper presents an enhanced U-shaped double-sided toroidal winding linear permanent magnet vernier machine (US-DTWLPMVM). Firstly, the topology of US-DTWLPMVM is introduced and the flux concentration effect of the U-shaped permanent magnet structure is analyzed using the equivalent magnetic circuit method. The operation principle of US-DTWLPMVM is analyzed based on the principle of magnetic field modulation. Subsequently, the US-DTWLPMVM multi-objective optimization is performed using the Taguchi-RSM-Egret Swarm Optimization Algorithm (ESOA). Then, combined with the surface-mounted and Halbach PM structure double-sided toroidal winding linear permanent magnet vernier machine (DTWLPMVM), the impact of the U-shaped permanent magnet structure on the magnetic field and the resulting differences in thrust performance of the DTWLPMVM are investigated. Finally, the related experimental tests of US-DTWLPMVM are carried out to verify the reliability of the theoretical analysis and finite element simulation results. The results show that, the proposed US-DTWLPMVM confers several advantages. These include the improvement of winding ends, an increase in the thrust density of the motor, and a reduction in thrust ripple and balance of the attractive forces of the mover.
Institution: Henan Polytechnic University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,270
OpenAlex ID: W4404144819