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Presentation of a Novel E-Core Transverse-Flux Permanent Magnet Linear Motor and Its Magnetic Field Analysis Based on Schwarz-Christoffel Mapping Method

  • Fu, Dong-Shan (School of Electrical Engineering, Shandong University) ;
  • Xu, Yan-Liang (School of Electrical Engineering, Shandong University)
  • Received : 2017.03.06
  • Accepted : 2017.06.04
  • Published : 2017.09.01

Abstract

In order to overcome the manufacturing difficulty of the transverse-flux permanent magnet linear motor (TFPMLM) and enhance its performance much better, a novel TFPMLM with E-core and 3 dimension (3D) magnetic structures is proposed in this paper. Firstly, its basic structure and operating principle are presented. Then the equivalent 2D configuration of the TFPMLM is transformed, so that the Schwarz-Christoffel (SC) mapping method can be used to analyze the motor. Furthermore, the air gap flux density distribution is solved by SC mapping method, based on which, the EMF waveform, no-load cogging force waveform and load force waveform are obtained. Finally, the prototyped TLPMLM is manufactured and the results are obtained from the experiment and 3D FEM, respectively, which are used to compare with those from SC mapping method.

Keywords

Transverse-flux permanent magnet linear motor (TFPMLM);Schwarz-Christoffel (SC) mapping method;3-dimensional finite element method (3D FEM);Prototype experiment

Acknowledgement

Supported by : Department of Science and Technology of Shandong Province of China

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