The Analytical Comparative Analysis of Electromagnetic Characteristics of Four Typical Radial Flux Permanent Magnet Eddy Current Couplers

Yibo Li, Jiacai Huang, Fangzheng Gao, Zhiying Zhu, Yufei Han, Yao Li, Quan Sun and Duo Zhang
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Yibo Li: School of Innovation and Entrepreneurship, Nanjing Institute of Technology, Nanjing 211167, China
Jiacai Huang: School of Innovation and Entrepreneurship, Nanjing Institute of Technology, Nanjing 211167, China
Fangzheng Gao: School of Automation, Nanjing Institute of Technology, Nanjing 211167, China
Zhiying Zhu: School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Yufei Han: School of Innovation and Entrepreneurship, Nanjing Institute of Technology, Nanjing 211167, China
Yao Li: School of Innovation and Entrepreneurship, Nanjing Institute of Technology, Nanjing 211167, China
Quan Sun: School of Automation, Nanjing Institute of Technology, Nanjing 211167, China
Duo Zhang: School of Innovation and Entrepreneurship, Nanjing Institute of Technology, Nanjing 211167, China

Energies, 2021, vol. 14, issue 24, 1-18

Abstract: The analytical model of a permanent magnet eddy current coupler (PMECC) is mainly used for evaluation of its characteristics and the initial optimization of design. Based on the equivalent magnetic circuit method, this paper carries out analytical modeling for four typical PMECCs composed of surface-mounted and interior permanent magnet, slotted and non-slotted conductor rotors, which provides a theoretical basis for the subsequent research in this paper. The basic electromagnetic characteristics of the PMECCs are investigated by the established analytical model. Simultaneously, the analytical results about permeance, flux density, torque and power are verified by FEA simulation. The analysis results show that the slotted CR will obtain a much higher power density, and the iron loss mainly exists in the CRs. In addition, the analytical and FEA results agree well, which proves the reliability of the proposed, nearly unified analytical model.

Keywords: comparative analysis; eddy current coupler; electromagnetic characteristics; permanent magnet; permeance function; squirrel cage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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