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Analytical prediction of electromagnetic performance of surface-mounted PM machines based on subdomain model accounting for tooth-tips

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5 Author(s)
Wu, L.J. ; Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK ; Zhu, Z.Q. ; Staton, D. ; Popescu, M.
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The developed subdomain model accounting for tooth-tips can accurately predict the open-circuit, armature reaction and on-load field distributions in surface-mounted permanent magnet machines. Based on this field model, the electromagnetic performance, such as the cogging torque, back-EMF and electromagnetic torque and winding inductances are calculated. The model can also be used for the evaluation of demagnetisation withstand capability. The finite-element analysis confirms excellent accuracy of the developed analytical model.

Published in:

Electric Power Applications, IET  (Volume:5 ,  Issue: 7 )