PERFORMANCE ANALYSIS OF POWER SEPIC CONVERTERS FOR GRID CONNECTED HYBRID SOLAR AND WIND ENERGY SYSTEM

The power generation from the photovoltaic (PV) and wind energy conversion system (WECS) sources has been increased notably, due to its alternative availability nature during a day. In this work, different power electronic converters are integrated together by sharing and merging power converter components between the DC-DC converters to develop a hybrid power converter. The hybrid Cuk and single ended primary inductor converter (SEPIC) is derived from the traditional SEPIC converters by rearranging the diodes D1 and D2 in the SEPIC converters and also by distributing the output inductor, L2 of the Cuk converter by the SEPIC converter. Similarly, Hybrid converter is arranged from the classical super lift converter by allocating the charging capacitor, C1 and DC link capacitor, C2 between the two converters. The proposed methodology tested at various conditions for all the three time sections and the obtained results shows that the SEPIC converter gives the higher efficiency compared to the SEPIC converter. Piecewise Linear Electrical Circuit Simulation (PLECS) controller is used to validate the efficacy of developed hybrid RES system for real time analysis. The obtained outcomes with PLECS controller illustrates the proposed work will be useful for integration of different renewable energy sources in real time.