USE OF BALANCED AND UNBALANCED LOADS BY USING AN ISOLATED W-H HYBRID MODEL WITH POWER CONVERTERS

In this paper, a new three-phase four-wire load connected to an autonomous W-H(wind ?hydro) hybrid system driven by squirrel cage induction generators SCIG, which hasn’t been connecting to the grid and where the windhydro potential exist constantly. The control of voltage and frequency (VFC) are the main important. The wind system driven by variable speed generator. This hybrid system utilizes back-to-back-connected, two IGBT based voltage- source converters (VSCs) with a battery at its dc link. This hybrid system has bidirectional flow of activeand reactive power, which maintains a constant frequency across the load irrespective of any types of load like linear and non linear loads. The performance has verified by MATLAB-9/Simulink-SimPower Systems software