Title :
Calculation of eddy current loss in axial field permanent-magnet machine with coreless stator
Author :
Wang, Rong-Jie ; Kamper, Maarten J.
Author_Institution :
Dept. of Electr. Eng., Univ. of Stellenbosch, Matieland, South Africa
Abstract :
This paper presents a hybrid method for the calculation of eddy current loss in coreless stator axial field permanent-magnet (AFPM) machines. The method combines the use of two-dimensional finite element (FE) field analysis and the closed-form eddy loss formula. To account for three-dimensional field effects in an AFPM machine, a multilayer and multislice modeling technique has been devised. Experimental tests are carried out to validate the method. It is shown that the proposed method predicts the eddy current losses of a coreless stator AFPM machine with high accuracy.
Keywords :
eddy current losses; finite element analysis; permanent magnet machines; stators; AFPM machines; axial field permanent-magnet machines; closed-form eddy loss formula; coreless stators; eddy current loss; multilayer modeling technique; multislice modeling technique; three-dimensional field effects; two-dimensional finite element field analysis; Conductors; Eddy currents; Finite element methods; Machine windings; Magnetic cores; Magnetic fields; Magnets; Stator cores; Stator windings; Topology; Axial field; FE; PM; eddy currents; finite-element; machine; method; permanent-magnet;
Journal_Title :
Energy Conversion, IEEE Transactions on
DOI :
10.1109/TEC.2004.832043
