Transients in a transistor-switched capacitor regulator of a stand-alone induction generator supplying a single-phase load

This paper presents a stand-alone three-phase induction generator with a transistor-switched capacitor regulator tied to the electric machine stator winding. The stator winding phases are interconnected according to the so called Smith winding connection. The generator supplies an isolated single-phase passive load. The transistor-switched capacitor regulator dynamic model has been derived from its equivalent circuits and is augmented with an RCD snubber. The regulator has to regulate the generator voltage according to a bang-bang control algorithm. Transient response of the generator excitation system based on its time domain dynamic model simulation is evaluated after switching on and off the transistor.