Optimal Design and Analysis of a Less-rare-earth Hybrid PM Magnetic Gear

Magnetic gears (MGs), like mechanical gears, rework power between exclusive speeds and torques; however, magnetic gears’ contactless nature affords inherent capability blessings over mechanical gears but the charge fluctuation and the unstable deliver chain of rare-earth PM have posed capacity risks for in addition application of MG. To reduce the use of rare earth PM materials, a less-rare-earth MG design is proposed that uses a parallel-series magnetic circuit in inner rotor and filled magnet cavities filled with each rare earth and ferrite PMs. In this paper, the output performance is optimized and investigated via 2-D finite element analysis.