Title :
An analytical solution for the rotor eddy current losses in a slotless PM motor: the case of current layer excitation
Author :
Markovic, Miroslav ; Pfister, Pierre-Daniel ; Perriard, Yves
Author_Institution :
Integrated Actuators Lab. (LAI), Ecole Polytech. Federate de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
We present an analytical solution for the induced eddy currents and the corresponding losses generated in the rotor of a slotless permanent magnet (PM) motor. The field excitation is a current layer placed at the stator interior surface. The solution is based on an analytical solution of the diffusion equation using double Fourier series in complex domain. The results are verified using an FEM software.
Keywords :
Fourier series; eddy current losses; finite element analysis; permanent magnet motors; rotors; stators; current layer excitation; double Fourier series; field excitation; permanent magnet; rotor eddy current losses; slotless PM motor; stator interior surface; Conductivity; Conductors; Eddy currents; Iron; Magnetic analysis; Permanent magnet motors; Permeability; Rotors; Shafts; Stators;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382744
