Multidimensional Currents Control Systems of Induction Motor Electric Drives
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The structure of multidimensional current controllers of induction motors is considered. A mathematical model of the currents control system of wound-rotor induction motor with two-sided control is shown. The building of model is based on the account of saturation effect of the machine on the main magnetic path. The tasks and simulation results of currents control systems are described. It is shown, that under fast changing of setpoints on the inputs of currents control system it is necessary to account the saturation of magnetic field during the controllers synthesis. The increasing of noncompensated time constant leads to current controller loses the ability to compensate the influence of external disturbance. The dynamics of the currents controller system is illustrated by the transients graphs under step responses on control and disturbance actions. The basic conclusions are made based on the results of numerical experiments.
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