Title :
Analysis of electromagnetic performance of flux-switching permanent-magnet Machines by nonlinear adaptive lumped parameter magnetic circuit model
Author :
Zhu, Z.Q. ; Pang, Y. ; Howe, D. ; Iwasaki, S. ; Deodhar, R. ; Pride, A.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, UK
Abstract :
A nonlinear adaptive lumped parameter magnetic circuit model is developed to predict the electromagnetic performance of a flux-switching permanent-magnet machine. It enables the air-gap field distribution, the back-electromotive force (back-EMF) waveform, the winding inductances, and the electromagnetic torque to be calculated. Results from the model are compared with finite-element predictions and validated experimentally. The influence of end effects is also investigated, and optimal design parameters, such as the rotor pole width, the stator tooth width, and the ratio of the inner to outer diameter of the stator, are discussed.
Keywords :
air gaps; brushless machines; lumped parameter networks; magnetic circuits; permanent magnet machines; air gap field distribution; back electromotive force; brushless machines; electromagnetic performance analysis; electromagnetic torque; end effects; finite element prediction; flux switching permanent magnet machines; nonlinear adaptive lumped parameter magnetic circuit model; optimal design parameters; rotor pole width; stator tooth width; winding inductances; Air gaps; Electromagnetic analysis; Electromagnetic forces; Electromagnetic modeling; Electromagnetic scattering; Magnetic analysis; Magnetic circuits; Performance analysis; Predictive models; Stators; Brushless machines; electrical machines; flux switching; lumped magnetic circuit; permanent magnet;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854441
