Single-phase operation of an autonomous three-phase induction generator using a VSI-DL control system

This paper presents an efficient method to supply single-phase loads with a three-phase induction generator (IG). A combination between a properly controlled voltage source inverter (VSI) and dump load (DL) ensures, besides the phase balancing of the IG, the voltage and frequency regulation. The VSI operates at constant frequency - thus keeping the system frequency also constant - and deals with unbalances compensation, while the DL performs the voltage regulation. Simulations are carried out in order to highlight the reliability of such a configuration.