Title :
Comparison of Halbach and Dual-Side Vernier Permanent Magnet Machines
Author :
Dawei Li ; Ronghai Qu ; Zhe Zhu
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A closed-form analytical model is developed to build the special rules for vernier permanent magnet (VPM) machines comparison. Based on the finite element analysis (FEA), comparisons of some key parameters including power factor are made among three novel VPM topologies, i.e., Halbach, dual-stator (DS), and DS spoke-array (DSSA) structures. The results from both the analytical model and FEA model demonstrate that the DSSA VPM machine exhibits highest power factor, viz., ~0.91, highest torque density and fewest magnet usage.
Keywords :
finite element analysis; permanent magnet machines; power factor; stators; DS spoke array structures; DSSA VPM machine; Halbach permanent magnet machines; closed form analytical model; dual side vernier permanent magnet machines; dual stator structures; finite element analysis; magnet usage; power factor; torque density; Decision support systems; Iron; Magnetic flux; Reactive power; Rotors; Topology; Torque; Closed-form analytical model; finite element analysis; power factor; vernier permanent magnet (PM) machines;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2013.2280760
