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Analysis and inhibition of radial electromagnetic force in composite magnetic coupler

Authors :
Shuang Wang
Xin Ma
Yongcun Guo
Deyong LI
Shousuo Sun
Zeyong Hu
Source :
IET Electric Power Applications, Vol 17, Iss 7, Pp 918-927 (2023)
Publication Year :
2023
Publisher :
Wiley, 2023.

Abstract

Abstract A new inhibition method was proposed for the problem of harmonic of radial electromagnetic force during the operation of the composite magnetic coupler. In order to suppress its radial electromagnetic force, a radial permanent magnet rotor eccentricity method is proposed, and a three‐dimensional finite element model is established. Based on the Maxwell tensor method, the radial electromagnetic force of the composite magnetic coupler is analysed, and the mathematical expression of its radial electromagnetic force is established, Maxwell stress tensor was used to analyse the radial electromagnetic force in a composite magnetic coupler and to establish the mathematical equation for the radial electromagnetic force. In order to suppress the radial electromagnetic force, a method based on rotor eccentricity in a radial permanent magnet was proposed. A prototype of a composite magnetic coupler with a rated power of 5 kW was designed to test its output torque under load. The results showed that the simulated curve was consistent with the tested curve, with a maximum numerical error of 8.9%. The tested values of the output torque before and after eccentricity were compared, and the results showed that the output torque remained basically unchanged after the eccentric structure was adopted and that the torque pulsation was significantly reduced.

Details

Language :
English
ISSN :
17518679 and 17518660
Volume :
17
Issue :
7
Database :
Directory of Open Access Journals
Journal :
IET Electric Power Applications
Publication Type :
Academic Journal
Accession number :
edsdoj.1c65444b400541dd899c3061d96fb3dc
Document Type :
article
Full Text :
https://doi.org/10.1049/elp2.12313