A method and apparatus of stator voltage control for an induction generator.
Each
phase of the induction generator stator is connected through a secondary coil of
a transformer to a utility grid. A stator voltage control circuit is connected
in parallel with a primary coil of the transformer. The stator voltage control
circuit consists of an on/off switch device connected to a full wave rectifier
comprised of four silicon diodes. A single pulse width modulation (PWM) control
is utilized to control the on/off switch devices of each phase of the induction
generator stator.