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.