Speed control of multiple induction motors of electromagnetic shaft synchronization system

This paper presents dynamic simulation of speed control and synchronization of multiple induction motors of electromagnetic shaft system with additional external control windings. To control the speed at constant synchronization capability through the common rotor circuit, a mathematical model describing an electromagnetic shaft with external control element has been proposed. The behavior of the motors has been represented by a system of equations for rotational dynamic torque, speed and angular position. Results of the dynamics of the electromagnetic shaft synchronization system with external control windings have been illustrated and compared to the electromagnetic shaft synchronization system without external control windings.