Abstract
This paper proposes a novel nine switch converter based isolated wind hydro hybrid power system feeding three phase three wire dynamic loads. The proposed system comprises of three generating units and two storage units. In this work, hydro and wind turbine generation system is deployed through squirrel cage induction generator (SCIG) with 50kW and 40kW respectively. The main impact of this work is the integration of additional PV unit and two storage units namely battery and ultra-capacitor (UC) into the system through the proposed nine switch converter which was unfeasible through the conventional voltage source inverter. This proposed converter operates in bidirectional mode as either converter or inverter which overcomes the limitation of utilizing additional bidirectional converters. By this novel approach, power can be effectively stored and retrieved from the storage devices through the converter based on the load demand. Sudden increase in load and evaluation under minimal renewable energy support was also studied to evaluate the significance of the proposed system and results are obtained to prove the successful working of the proposed scheme.
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