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.

中文翻译：

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一种用于潮汐发电的双调制磁齿轮电机

在本文中，提出了一种新的双调制器磁齿轮电机（DM-MGM）用于潮汐发电，具有低速高扭矩输出的优点。首先，推导出 DM-MGM 对潮汐发电的要求。然后，阐述了所提出的DM-MGM的额外调制器的通量调制原理和通量增强效果。之后，采用有限元分析和多目标遗传算法（FEA-GA）相结合的方法解决DM-MGM设计的多目标优化问题。通过有限元分析对优化后的不同极对组合的 DM-MGM 的电磁性能进行了定量比较。结果表明所提出的机器的有效性，适用于潮汐发电场景。