Abstract
The paper considers development of new electric drive systems based on an induction motor with a wound rotor having improved performance by introducing new circuit solutions and control algorithms that provide motor control via the rotor circuit. Research results: the principle of operation of the induction resistance, introduced into the rotor circuit through a frequency converter, changing its parameters depending on the frequency of the current flowing through it, is described. A method for controlling the speed of the electric motor, which consists of a smooth change of the additional inductive-active resistance introduced into the rotor circuit connected to the rotor through a frequency converter, is proposed. The technique reduces to the rotor winding resistance and induction resistance to the DC link is applied. The efficiency test of the proposed electric drive system in the software package MatLab Simulink through the method of mathematical modeling is performed. On the basis of computer simulation mechanical and power characteristics of the described electric drive system were obtained. On the grounds of the data obtained as a result of modeling the properties of the electric drive system are studied.
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