Title :
Calculation of no load losses in an induction motor using an inverse vector Preisach model and an eddy current loss model
Author :
Gyselinck, Johan J C ; Vandevelde, Lieven ; Makaveev, Dimitre ; Melkebeek, Jan A A
Author_Institution :
Dept. of Electr. Power Eng., Ghent Univ., Belgium
fDate :
7/1/2000 12:00:00 AM
Abstract :
This paper deals with the direct inclusion of vector hysteresis and eddy current losses in a 2D finite element (FE) time stepping analysis. It is shown that a vector Preisach model can be inverted in an efficient way by means of the Newton-Raphson method and that it thus can easily be included In the Newton-Raphson iterations of the FE equations. The eddy current losses are accounted for by considering an additional conductivity matrix in the FE equations. The method is applied to the no load simulation of an induction motor. The calculation results are discussed and compared to measurements
Keywords :
Newton-Raphson method; eddy current losses; finite element analysis; induction motors; machine theory; 2D finite element time stepping analysis; Newton-Raphson method; conductivity matrix; eddy current loss model; induction motor; inverse vector Preisach model; iterations; no load losses; vector hysteresis; Conductivity; Eddy currents; Equations; Finite element methods; Induction motors; Inverse problems; Iron; Magnetic fields; Magnetic hysteresis; Magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
