SERIES COMPENSATED PWM INVERTER WITH BATTERY SUPPLY APPLIED TO AN ISOLATED INDUCTION GENERATOR

This paper proposes a new series compensated induction generator / bat tery supply topology which provides a constant voltage and frequency a t the terminals, allowing minimum current harmonic distortion while at the same time providing a source and sink of real and reactive power. With appropriate control of the reactive power, the speed of the gene rator is allowed to vary within a relatively wide range. This techniqu e can be further expanded by applying ac capacitors in parallel with t he load to lessen the burden of the PWM inverter. Both simulation and experimental results are in agreement with the theory which leads to t he conclusion that the system could be feasible for isolated power gen eration systems (wind, hydro, diesel, or hybrid generation).