Standalone hybrid power generation - control technique for dump power

Abstract

With increasing load demand and global warming, an environment-friendly type of energy solutions to preserve the earth for the future generations has become a prerequisite. Other than hydro power, many such energy sources like wind and solar energy is highly potential sources to meet our energy demands. Systems which uses two or more renewable energy sources is is better than the single source system in terms of cost, efficiency and reliability. Standalone Wind/solar hybrid generation system offers a reliable and better solution to distributed generation for remote areas and localities where power from grid is not available. Natural energy-based power generation systems are always equipped with storage batteries to give constant output irrespective of the natural energy variation. There are chances of battery getting overcharged. For the Standalone type of generation installation of dump load is necessary to prevent the overcharging by proper utilisation of dump power. Elimination of dump load by adding a Pumped Storage Hydroplant is aimed here. The plant will not only dissipate the excess wind energy but also takes part in power generation when demanded for. The modeling and simulation is done using MATLAB/SIMULINK software.