Control Scheme of a Concentration Photovoltaic Plant with a Hybrid Energy Storage System Connected to the Grid

摘要: In the last few decades, renewable energy sources (RESs) have been integrated into electrical grid in order to curb deficiency of owing to, among other factors, depletion fossil fuels and increasing awareness climate change. However, stochastic nature these sources, along with changes levels consumption, signifies that attention now needs be paid for storage systems (ESSs). One most promising RESs is concentration photovoltaic (CPV) energy, high efficiency obtained its sustainability regarding environmental issues. as CPV work only direct solar radiation, they require ESSs smooth variations generated. This paper deals integration a plant employs hybrid ESS (HESS) based on ultracapacitors batteries. The HESS allows complete system inject constant active power level thus flatten profile goal achieved by using electronic topology various DC–DC converters DC–AC converter, both which share same DC link. control tailored decouple active-power reactive-power injections. Simulation results PSCAD/EMTDC (Power System Computer Aided Design/Electromagnetic Transient Direct Current) show resulting performance 200 kW ESS.