Torque Distribution Characteristics of a Novel Double-Stator Permanent Magnet Generator Integrated with a Magnetic Gear

Shehu Salihu Mustafa, Norhisam Misron, Norman Mariun, Mohammad Lutfi Othman and Tsuyoshi Hanamoto
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Shehu Salihu Mustafa: Department of Electrical & Electronic, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Norhisam Misron: Department of Electrical & Electronic, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Norman Mariun: Department of Electrical & Electronic, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Mohammad Lutfi Othman: Department of Electrical & Electronic, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Tsuyoshi Hanamoto: Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu 808-0916, Japan

Energies, 2016, vol. 10, issue 1, 1-26

Abstract: This paper presents a novel double-stator permanent-magnet machine integrated with a triple rotor magnetic gear structure, which is proposed to address problems of mechanical geared generators for low-speed applications. Torque transmission is based on three rotors consisting of prime permanent-magnet (PM) poles in the middle rotor and field PM poles in the inner and outer rotors. The proposed machine combines the functions of magnetic gearing and electrical power generation. The operating principles of the magnetic gear and generator are discussed and the torque distribution characteristics of the integrated machine are analysed using the 2D finite-element method (2D FEM). Also the power, torque, and speed characteristics are reported. A prototype is fabricated and tested experimentally. The predicted and measured results validate the proposed machine design.

Keywords: magnetic gear (MG); permanent-magnet (PM); double-stator magnetic geared machine (DS-MGM); prime magnet; field magnet; torque distribution; transmission torque; cogging torque; finite element method; harmonic analysis; flux density (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: 2016
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