Analysis and Modeling of a Flux-Switching Transverse-Flux Permanent Magnet Tube Linear Motor

• Published in: 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers) pp. 1 - 2
• Main Authors: Fu, Dongshan, Wu, Kangyi, Wang, Xiangrui, Wu, Xiaojie
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.05.2023
• Subjects: Electromagnetic thrust; Equivalent two-dimensional (2-D) finite-element method (FEM); Finite element analysis; Flux switching; Force; Magnetic flux; Permanent magnet motors; Permanent magnets; Transverse flux machine; Two dimensional displays; Windings
• DOI: 10.1109/INTERMAGShortPapers58606.2023.10228349

The flux-switching transverse-flux permanent magnet tube linear motor (FSTFPMTLM) has a variety of outstanding advantages, such as high thrust density and small detent force. However, the different thrust of the motor is coupled together, and it is time-consuming to take the three-dimensional (3-D) finite-element method (FEM) to analyze the thrust. To solve these above problems, this paper proposes a solution method for decoupling the electromagnetic thrust, in which the thrust of the motor can be divided into winding reluctance force, cogging force, and electromagnetic thrust. Firstly, the relationship between the different thrusts and the corresponding equivalent permeances of each magnetic source is obtained. Secondly, equivalent two-dimensional (2-D) finite-element FEM is proposed to quickly solve various equivalent permeances. Then, the expression of electromagnetic thrust can be determined, and the electromagnetic thrust characteristics are obtained and analyzed. Finally, the 3-D FEM analysis and experimental results verify the validity and correctness of the design method of the machine.