Affiliations: Department of Electronic Systems Engineering, Hanyang University, Ansan, Korea
Correspondence:
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Corresponding author: Byung-il Kwon, Department of Electronic Systems Engineering, Hanyang University, Sangnok-gu, Ansan, Gyeonggi-do, 426-791, Korea. Tel.: +82 10 6211 5165; Fax: +82 31 409 1277; E-mail:bikwon@hanyang.ac.kr
Abstract: This paper proposes a novel dual rotor radial field flux
switching permanent magnet machine (FSPMM) with phase-group
concentrated-coil (PGCC) windings and two misaligned rotors to obtain high
performance, including high torque density and low cogging torque, as well
as low torque ripple. The proposed FSPMM features a new combination of
stator slots and rotor poles, which is determined by the winding
configurations. The PGCC windings are adopted to obtain a unity displacement
winding factor, and enhance the flux focusing effects together with the use
of spoke-type PM constructions. The unaligned arrangement of two rotors will
help to not only achieve further flux magnification by an alternate
operating principle for PM flux concentration, but also suppress the cogging
torque. To highlight the advantages of the proposed FSPMM, two conventional
FSPMMs with typical machine configurations having concentrated windings are
adopted for performance comparison based on a finite element method (FEM)
using JMAG-Designer.
