Computer Modeling of DC and AC Motor Systems by Different Methods and Determination of Errors them

In this paper the MatLab software package is considered from the point of view of a universal environment for modeling DC and AC motor systems. The analysis of methods of mathematical, structural and physical modeling in MatLab was carried out using the Simulink block library and the SimPowerSystems application. For the study, two electromechanical systems were selected - a direct-current motor with independent excitation and an asynchronous motor with a squirrel-cage rotor, as one of the most common for driving technological installations of mining. Using a laboratory facility, a simulation model has been developed. It makes possible to evaluate, analyze and compare the results obtained during modeling with real data. The qualitative and quantitative characteristics of the transient process, such as the regulation time, the amount of overshoot, the number of oscillations, were subject to evaluation. During the evaluation and analysis of the modeling results, the advantages and disadvantages of various methods for modeling DC and AC motor systems in the MatLab software package were established.