Analysis and Calculation for a Novel Transverse Flux Linear Synchronous Motor With 3-D Magnetic Circuit Method

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Abstract
A novel transverse flux linear synchronous motor (TFLSM) realizes the integrated functions of propulsion, levitation, and guidance for maglev trains. An efficient and reliable electromagnetic force calculation method is required at the initial stage of TFLSM topology design to assess the conformability to the intended application requirements. The research dimension of the proposed motor needs to be extended from the one-dimensional (1-D) space to the three-dimensional (3-D) space. With respect to constructing the mapping relationship between electromagnetic parameters and dimensional structures, the 3-D magnetic circuit method is deservedly convenient. A dynamic magnetic circuit grid model considering the actual operating conditions of the maglev motor is proposed in this article. First, the basic configuration and operation principle of the TFLSM are described. Second, a 3-D magnetic circuit model is established to analyze and calculate the electromagnetic force characteristics of TFLSM. The 3-D forces of TFLSM under different specification parameters are analyzed. Third, finite element analysis and prototype TFLSM experiments are carried out to validate the correctness of the theoretical analysis.
Funding Information
  • Beijing Natural Science Foundation (L223014)
  • National Natural Science Foundation of China (52077003)
  • Fundamental Research Funds for the Central Universities (2022JBZY016)
  • Joint Fund of Henan Province Science and Technology R&D Program (225200810018)

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