Calculation of Torque Performance of a Novel Magnetic Planetary Gear

In this letter, an efficient energy-based methodology is proposed for calculating the torque performance of a novel magnetic planetary gear. To verify the proposed method and the gear performance, a prototype was also constructed and experimentally evaluated. It shows good agreement between the predicted and measured torque performance. The new gear topology demonstrates higher torque capability than the common, flux-modulated magnetic gear. However, the complex mechanical construction and the high loss at no-load remain as challenges.