Title :
Eddy current power losses in a toroidal laminated core with rectangular cross section
Author :
Markovic, Miroslav ; Perriard, Yves
Author_Institution :
Integrated Actuators Lab. (LAI), Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
The paper presents a completely analytical solution for the magnetic field, the induced eddy currents and corresponding losses in a toroidal laminated core with a rectangular cross section. The diffusion equation is analytically solved using a separation of variables in a cylindrical coordinate system, and accurate conditions for the weak and strong diffusion effect are determined. An equivalent resistance corresponding to the eddy current losses is defined and determined. The results are experimentally verified.
Keywords :
eddy current losses; laminations; magnetic cores; cylindrical coordinate system; diffusion equation; eddy current power losses; rectangular cross section; toroidal laminated core; Actuators; Eddy currents; Equations; Laboratories; Lamination; Magnetic analysis; Magnetic cores; Magnetic materials; Magnetic separation; Toroidal magnetic fields; Diffusion equation; Eddy currents; Toroidal cores;
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.2009.5382736
