Optimal Operation of a Renewable Energy Power System

Since the discovery of different forms of energy and their integration into industrial or residential systems, various possibilities to store and realize energy reserves have been considered. Due to the volatility in the input of the renewable energy sources and also the variation of the demand, energy storage systems are needed. In this paper Li-Ion batteries are considered in a power system that contains thermal generating units, hydro generating units and wind generating units. A mathematical model is presented that determines the optimal operation of a power system similar to a real one that is located in the south-eastern part of Romania.