A Dual-Modulator Magnetic-Geared Machine for Tidal-Power Generation

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Original languageEnglish
Article number6703607
Journal / PublicationIEEE Transactions on Magnetics
Issue number8
Online published19 Jun 2020
Publication statusPublished - Aug 2020


In this article, a new dual-modulator magnetic-geared machine (DM-MGM) is proposed for tidal-power generation with the virtue of high-torque output at low speed. First, the requirement of the DM-MGM for tidal-power generation is derived. Then, the flux-modulation principle and flux-enhancing effect of the extra modulator of the proposed DM-MGM are elaborated. After that, a finite-element analysis and multi-objective genetic algorithm (FEA-GA) combined method is used to solve a multi-objective optimization problem for the DM-MGM design. The electromagnetic performances of the optimized DM-MGM with different pole-pair combinations are quantitatively compared by FEA. The results show the effectiveness of the proposed machine, which is suitable to be applied in the tidal-power-generation scenario.

Research Area(s)

  • Finite-element analysis (FEA), magnetic-geared machine (MGM), modulator, permanent-magnet (PM) machine, tidal-power generation