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作者:

Guo, Wenguang (Guo, Wenguang.) | Yan, Bin (Yan, Bin.) | Li, Desheng (Li, Desheng.)

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EI Scopus

摘要:

This paper proposes a model for the electromagnetic performance of the dual air-gap liquid-cooled eddy current retarder (DAL-ECR) considering the transient permeability. First, the structure and working principle of the DAL-ECR are introduced. Next, the analysis model of the static air-gap flux density considering the flux leakage and end effect is established based on the piecewise function method and the magnetic equivalent circuit (MEC). Then, based on the skin effect of the electromagnetic field in the retarder, an iterative method for solving the transient permeability of the stator is proposed. According to Faraday’s and Ampere’s laws, the analysis model of the static air-gap flux density, and the transient permeability, the analysis model of the transient air-gap flux density is established. The braking torque of the DAL-ECR is then calculated while taking the actual path of the eddy current and the skin effect on the permeability of the stator into consideration. Finally, the calculation accuracy of the model was verified by the finite element method (FEM) and the bench test. © 2023 by the authors.

关键词:

Magnetic leakage Mechanical permeability Eddy currents Equivalent circuits Electromagnetic fields Skin effect Transients Iterative methods Stators

作者机构:

  • [ 1 ] [Guo, Wenguang]School of Mechanical Engineering, Anyang Institute of Technology, Anyang; 455000, China
  • [ 2 ] [Yan, Bin]School of Mechanical Engineering, Anyang Institute of Technology, Anyang; 455000, China
  • [ 3 ] [Li, Desheng]College of Mechanical Engineering and Applied Electronic Technology, Beijing University of Technology, Beijing; 100124, China

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来源 :

World Electric Vehicle Journal

ISSN: 2032-6653

年份: 2023

期: 7

卷: 14

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