Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66297
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Title: Design optimization and comparative study of novel magnetic-geared permanent magnet machines
Authors: Wang, Q 
Niu, S 
Issue Date: 2016
Source: 2016 IEEE Conference on Electromagnetic Field Computation (CEFC), 13-16 November 2016, Miami, FL, USA
Abstract: This paper presents a novel magnetic-geared permanent magnet (MGPM) machine with dual flux modulating effect. The key is to employ the PMs both on the outer rotor and in the modulation ring, which is referred as dual-layer MGPM (DL-MGPM) machine. Compared with the conventional flux modulating design, dual field modulating effect can couple the magnetic fields excited by the armature windings, the rotor PMs and the modulation PMs effectively. Comparative study is conducted between the proposed machine and its existing counterpart with all the PMs on the outer rotor, referred as single-layer MGPM (SL-MGPM) machine. Furthermore, both MGPM machines can work in two operation modes, that is outer rotor mode with the modulation ring kept stationary, and middle rotor mode with the modulation ring acting as the rotor, while the outer layer kept standstill. The electromagnetic performances of MGPM machines in the two operating modes are analyzed and quantitatively compared using finite element method (FEM). Both of machines are optimized, and comparison results show that the proposed DL-MGPM machine enjoys higher potential to be designed with larger torque density.
Keywords: Dual flux modulating
Finite element method
Magnetic-geared
Permanent magnet
Publisher: Institute of Electrical and Electronics Engineers Inc.
ISBN: 978-1-5090-1032-5 (Electronic ISBN)
978-1-5090-1033-2 (Print on Demand(PoD) ISBN)
DOI: 10.1109/CEFC.2016.7816248
Rights: ©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
The following publication Q. Wang and S. Niu, "Design optimization and comparative study of novel magnetic-geared permanent magnet machines," 2016 IEEE Conference on Electromagnetic Field Computation (CEFC), 2016, pp. 1-1 is available at https://doi.org/10.1109/CEFC.2016.7816248
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