Simulation of Wireless Rotor Induction Machine with Wound Secondary Windings

Abstract

The suggested new wireless rotor induction machine consists of two sets of stator windings: primary and secondary. Each winding consists of one, two, or three phases. The laminated steel rotor, in wireless rotor machine, serves as a switcher of the magnetic field through output windings. By changing the configuration of the rotor poles, it is possible to create the sinusoidal waveform in the output windings. The rotor of the wireless rotor machine is rugged and cold. The cold rotor facilitates the cooling of the AC machine. In the wireless rotor induction machine, it needs double frequency of the voltage source for the same rotor speed as in the regular induction machines. That means that the suggested machine weightless than the regular induction machine with the same rating speed. In this case, the wireless rotor induction machine can find application, for example, as powertrain for the vehicles. The theory of wireless rotor induction machines now is not developed. In the paper, we consider the simulation of the wireless rotor induction machine to show that the principle operation of the wireless rotor induction machine is identical to a regular induction machine with a wound rotor. We use a phasor and vector representation of electrical and magnetic values. For simulation, we utilize graphical language, Simulink. The graphical language Simulink is visible, simple, and flexible. It allows designing the model according to the physical nature of the machine. We consider the induction machine as a close control system with feedback proportional to the motor torque. This new approach allows separate analyses of open and closed-loop control systems. After adjustment of all elements in the open control system, we insert feedback proportional to the motor torque. The results of this work can find the application for engineering education and professional design prototypes of the wireless rotor induction machines.