Demand Side Management of a grid connected PV-WT-Battery hybrid system

Due to technological developments, some isolated areas, where consumers were supplied with electricity using standalone hybrid systems, are currently being connected to the grid. The new problem induced by these advancements is to find how to efficiently operate these grid-connected systems. The present paper proposes a multi-objective energy management model in order to optimize the short-term operation of a grid-connected hybrid system supplying an industrial load while participating to the Time-of-use Demand Side Management program. The main purpose of the developed model is to minimize the operation cost of a proposed grid-connected hybrid energy system consisting of a photovoltaic unit, a wind unit and a battery storage system while optimizing the system's power flow considering the different components operational constraints. The simulations have been performed using "linear programming" implemented in Matlab. The simulation results demonstrate that the developed model can assist the hybrid system in reducing the operation cost and allow consumers to generate substantial income by selling power to the grid.