Representation of Asynchronous Motor Dynamics by Generalized Kloss Characteristics

The paper presents experimental results and mathematical modeling aimed to describe complex machine aggregates working under dynamic conditions. From parameters obtained experimentally the generalized Kloss characteristics is derived for nominal operational speeds of 1,450 min-1, 1,000 min-1 and 750 min-1 under sinusoidal excitation. The steady-state motion is conveniently reinterpreted as an ellipse centered at the working point. Working point is given as the intersection of moment characteristics of the asynchronous motor with the loading characteristics of DC motor with separate excitation. The results of measurements show, that it is necessary to consider the linear dynamic characteristics especially for dynamic response computations near to the resonance.