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Nonlinear Modeling of Transmission Performance for Permanent Magnet Eddy Current Coupler

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  • Xiaowei Yang
  • Yongguang Liu
  • Liang Wang

Abstract

Establishing the analytical model for accurately predicting the transmitted torque of the permanent magnet eddy current coupler (PMEC) with double conductor rotors is very important to study the nonlinear transmission performance of the PMEC. In this paper, based on magnetic equivalent circuit (MEC) approaches, considering the effects of permanent magnet (PM) end leakage, side leakage, and back iron saturation, the 3D magnetic field model of the PMEC is established. Based on the magnetic field model, combined with Faraday’s law and Ampere’s law, the 3D nonlinear model of the PMEC is established. The proposed model adopts the Jenei method to describe the inductance limited eddy current field. The theoretical data, 3D finite element method (FEM) data, and experimental data are compared. The research shows that the predicted value of the analytical model matches well with the torque obtained by 3D FEM and experiments in the range of 0-100% slip, with an error less than 5.3% observed. Finally, the influence of structural parameters on the transmission performance of the PMEC is studied by using the proposed model.

Suggested Citation

  • Xiaowei Yang & Yongguang Liu & Liang Wang, 2019. "Nonlinear Modeling of Transmission Performance for Permanent Magnet Eddy Current Coupler," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-14, May.
    • Handle: RePEc:hin:jnlmpe:2098725
    DOI: 10.1155/2019/2098725
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    Cited by:

    1. Yibo Li & Jiacai Huang & Fangzheng Gao & Zhiying Zhu & Yufei Han & Yao Li & Quan Sun & Duo Zhang, 2021. "The Analytical Comparative Analysis of Electromagnetic Characteristics of Four Typical Radial Flux Permanent Magnet Eddy Current Couplers," Energies, MDPI, vol. 14(24), pages 1-18, December.
    2. Dazhi Wang & Wenhui Li & Jiaxing Wang & Keling Song & Yongliang Ni & Yanming Li, 2023. "A Parameterized Modeling Method for Magnetic Circuits of Adjustable Permanent Magnet Couplers," Mathematics, MDPI, vol. 11(23), pages 1-18, November.

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