Title :
Evaluation and analysis of iron losses in electrical machines using the rain-flow method
Author :
Sadowski, N. ; Lajoie-Mazenc, M. ; Bastos, J.P.A. ; Da Luz, M. V Ferreira ; Kuo-Peng, P.
Author_Institution :
GRUCAD, Univ. Fed. de Sao Carlos, Brazil
fDate :
7/1/2000 12:00:00 AM
Abstract :
Iron losses in electrical machines are evaluated and analyzed in this work using the time-stepping finite elements method. The three components of total losses, i.e., eddy currents, excess or anomalous and hysteresis are considered. Concerning hysteresis losses, the influence of minor loops are considered. In order to compute the changes in flux densities during excursions around these minor loops, the “rain-flow method” is used. Results on several typical machines are presented and discussed
Keywords :
eddy current losses; electric machines; finite element analysis; machine theory; magnetic flux; magnetic hysteresis; eddy currents; electrical machines; flux densities; hysteresis losses; iron losses evaluation; minor loops; rain-flow method; time-stepping finite elements method; Eddy currents; Finite element methods; Helium; Iron; Magnetic analysis; Magnetic fields; Magnetic flux; Magnetic hysteresis; Mechanical engineering; Stress;
Journal_Title :
Magnetics, IEEE Transactions on
