Optimization of a power system consisting of wind and solar power plants and battery energy storage for optimal matching of supply and demand

A method to combine wind and solar photovoltaic (PV) powers in an optimal ratio supported by a Battery Energy Storage System (BESS) is presented in this paper to match the power demand at a particular geographical location. The idea of advantageously combining the complementary power production characteristics of both renewable energy (RE) resources has clear benefits for renewable power plants. The intermittent nature of such power poses challenges for its integration into electricity networks with conventional generators. One potential solution is the use of energy storage technologies. Today there are several storage technologies available in the market, though all of them are still expensive for RE applications. The proposed strategy aims to match the required power demand using hybrid wind-solar structure along with an optimal capacity of the BESS. The effectiveness of the proposed approach is depicted from the simulation results validated with actual wind farm and solar PV data.