Abstract
This paper presents a novel triple-permanent-magnet-excited (TPME) hybrid-flux magnetic gear (MG) that integrates a transverse-flux MG and an axial-flux MG into a single unit. Compared with its conventional counterparts, the proposed MG transmits a relatively high-torque density. When compared with the transverse-flux MG, this new structure employs a new configuration on the high-speed rotor, an extra iron segment between the low-speed rotor and the high-speed rotor to modulate the magnetic field, and hence contributing to the transmission of additional output torque. It also employs permanent magnets on the iron segments to produce additional torque. The proposed TPME hybrid-flux MG can offer a much higher torque transmission capacity than its conventional counterparts, making it more competitive for low-speed high-torque applications. A 3-D finite-element method is used for the analysis of the magnetic field and evaluation of the output torque.
Published Version
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