Thermodynamic Analysis of Compressed Air Energy Storage with Integration of Wind Power

Abstract

Integration of wind farm (WF) into the power grid system (PGS) will reduce the use of fossil fuels as well as minimize the greenhouse emissions. However, due to variableness of wind energy, the control and stability of PGS become more complicated. Compressed air energy storage (CAES) is one of the energy storage system (ESS) technology which can mitigate the fluctuation of renewable energy sources (RESs) due to some advantages such as quick start-up time and a large storage capacity size. This paper presents a modeling and simulation of CAES integrated with wind farm (WF-CAES) to investigate the thermodynamic performance of CAES on both compression and expansion modes during adiabatic and isothermal processes. Simulation results show that the wind speed and compressor efficiency plays a vital role in improving the overall system efficiency during the compression mode while the flow of air and the storage pressure in the cavern plays an essential role in improving the system performance and increase the power generation during the expansion mode. The proposed system is suitable for remote areas to increase the energy production, reduce the use of fossil fuels and helpful in the power system economics and design.