Simulation of a single phase induction motor operating in the motoring, generating and braking modes

A computer simulation of the single phase induction motor operating in the motoring, generating and braking modes, using 2-D finite elements is presented. Simulation as a motor includes operation from a nonsinusoidal power electronic supply. In the generating mode with capacitor excitation, the transient build up of terminal voltage is treated with a small permanent magnet in the rotor to account for the residual magnetism. In the braking mode with capacitor aid the motor speed is determined by the solution of the coupled electromechanical equations of motion. The finite element model uses a single pole-pitch model with the rotor sector executing a to and fro reciprocating motion.