Title :
Analysis of iron loss in interior PM machines with distributed windings under deep field-weakening
Author :
Chun Tang ; Soong, Wen ; Ertugrul, Nesimi ; Jahns, Thomas M.
Author_Institution :
Dept. of Electr. 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 IPM/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 1-, 2-, 3- and full-layered rotors.
Keywords :
eddy current losses; permanent magnet machines; reluctance machines; rotors; stators; IPM machines; closed-form expression; deep field-weakening conditions; distributed windings; eddy-current loss; full-layered rotors; interior PM machines; iron loss analysis; optimal barrier-positioning; reluctance machines; rotor-cavity positioning; rotor-effective-slot number; stator-slot number; Cavity resonators; Finite element analysis; Harmonic analysis; Iron; Rotors; Stator windings;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2014 IEEE
Conference_Location :
Pittsburgh, PA
DOI :
10.1109/ECCE.2014.6953969
