Title :
A Flux-Focusing Cycloidal Magnetic Gearbox
Author :
Kang Li ; Bird, Jonathan ; Kadel, Joshua ; Williams, Wesley
Author_Institution :
Lab. for Electromech. Energy Conversion & Control, Univ. of North Carolina at Charlotte, Charlotte, NC, USA
Abstract :
This paper investigates the performance of a -25:1 gear ratio cycloidal magnetic gearbox (CMG) with a flux-focusing rotor topology. The performance of the CMG is investigated by conducting an iterative parameter sweep analysis. An active region torque density of 291 Nm/L is calculated to be achievable with a 0.46% torque ripple. The cycloidal gearbox operates utilizing a nonuniform rotor air gap and this has the adverse effect of creating large nonsymmetric radial forces.
Keywords :
gears; machine insulation; magnetic flux; rotors; active region torque density; flux-focusing cycloidal magnetic gearbox; flux-focusing rotor topology; iterative parameter sweep analysis; nonsymmetric radial forces; nonuniform rotor air gap; torque ripple; Air gaps; Gears; Harmonic analysis; Magnetic flux; Magnetosphere; Rotors; Torque; Cycloidal; flux focusing; magnetic gearbox; magnetic gearbox (MG);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2015.2440218
