Title :
Consequent-Pole Toroidal-Winding Outer-Rotor Vernier Permanent-Magnet Machines
Author :
Dawei Li ; Ronghai Qu ; Jian Li ; Wei Xu
Author_Institution :
Sch. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A novel consequent-pole toroidal-winding outer-rotor (CPTW) Vernier permanent-magnet (VPM) machine is proposed in this paper. Different from a regular VPM machine, the stator and rotor of the proposed machine employ the consequent-pole and toroidal-winding configurations, which can significantly reduce magnet consumption, shorten the end-winding length, and improve the torque density. It is proved by a finite-element algorithm and prototype experiments that this machine can exhibit ~20% higher back electromotive force and electromagnetic torque than that of a regular VPM machine, whereas its magnet consumption is only ~60% of that in a regular VPM machine.
Keywords :
electric potential; finite element analysis; permanent magnet machines; rotors; stators; torque motors; CPTW; VPM machine; Vernier permanent magnet machines; back electromotive force; consequent pole toroidal winding outer rotor; electromagnetic torque; end winding length; finite element algorithm; magnet consumption; stator; torque density; Magnetic flux; Rotors; Stator windings; Toroidal magnetic fields; Torque; Windings; Consequent pole; Consequent-pole; finite element algorithm; finite-element algorithm; outer-rotor Vernier permanent-magnet (VPM) machine; outer-rotor vernier permanent magnet machine; toroidal winding; toroidal-winding; torque density;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2015.2458953
