Title :
Analysis of Iron Loss in Interior PM Machines With Distributed Windings Under Deep Field Weakening
Author :
Chun Tang ; Soong, Wen L. ; Jahns, Thomas M. ; Ertugrul, Nesimi
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA, Australia
Abstract :
This paper investigates the rotor cavity positioning and the combination of stator slot and rotor effective slot number on the eddy-current loss for interior permanent-magnet/reluctance machines operating under deep field-weakening conditions. A new closed-form expression for the stator and rotor eddy-current loss is developed. The optimal barrier-positioning for the minimum total loss and the effect on the eddy-current loss of varying the stator slot and rotor effective slot number are investigated for one-, two-, three-, and full-layered rotors.
Keywords :
eddy current losses; machine windings; permanent magnet machines; reluctance machines; deep field weakening; distributed windings; eddy-current loss; interior PM machines; iron loss; permanent-magnet machines; reluctance machines; rotor cavity positioning; rotor effective slot number; stator slot; Cavity resonators; Harmonic analysis; Iron; Rotors; Stator windings; Tunneling; Distributed windings; eddy-current loss; field-weakening; interior permanent-magnet (PM) machines; iron loss;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2015.2433901
