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

Hang Zhao, Chunhua Liu, Zaixin Song, Wusen Wang, Thierry Lubin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


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.

Original languageEnglish
Article number9121282
JournalIEEE Transactions on Magnetics
Issue number8
Publication statusPublished - Aug 2020
Externally publishedYes


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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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