On the question of the series excitation direct-current motor magnetization characteristic simulation

Abstract

It was determined that the representation of the magnetization curve model by the set of parabola and straight line allows to obtain highest accuracy of the series excitation direct-current motor universal magnetization curve approximation in comparison with the representation of this magnetization curve by the mathematical models based on hyperbolic tangent approximation and area-sine approximation of the magnetization curve. It has been shown that the mathematical models based on hyperbolic tangent approximation and area-sine approximation of the magnetization curve are unsuitable for being used in the task of minimizing of the series excitation direct-current motor electric losses.