Introduction

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The standalone power systems are an alternative solution to power-up remotely located consumers where the expansion of electrical grid is prohibitive and expensive. The hybrid power system combines two or more power generation units such as photovoltaic (PV), wind energy conversion system (WECS), mini/micro hydro, fuel cell and biomass and so on to overcome inherent limitations in either; and two or more energy storage systems such as battery banks and flywheel to provide continuous and high-quality energy flow to the consumers. The load could be a single home or several homes or large communities or islands. The voltage source inverter in standalone power system needs to provide symmetrical and robust three-phase sinusoidal voltages irrespective of the arbitrary consumer load profiles.