Impact of Energy Storage in PV-Based Distributed Generation for Mitigating Grid Disturbances

الملخص

Researchers have acknowledged the pivotal role of photovoltaic (PV) systems in enhancing the performance of energy storage systems, particularly in the context of power quality improvement (PQI). PV systems have demonstrated substantial contributions in mitigating common power quality disturbances such as voltage sags, overvoltages, and harmonic distortions. A prominent challenge associated with the integration of PV systems into electrical power systems (EPS) is the optimization of power quality parameters, wherein the application of unified power flow controllers (UPFCs) combined with maximum power point tracking (MPPT) algorithms has garnered considerable attention. The MPPT technique is employed to ensure the extraction of maximum available power from the PV source under varying environmental conditions. This study further explores the modeling and simulation of an EPS integrated with a PV-UPFC configuration, emphasizing its influence on improving PQI. A 400.0 kW PV-UPFC system is modeled, comprising four PV arrays, each capable of delivering 100.0 kW under standard solar irradiance conditions (1 kW/m²). Each PV-UPFC array consists of 64 parallel strings, and within each string, five SunPower SPR-315E photovoltaic modules are connected in series. The system modeling and performance evaluation are conducted using MATLAB/Simulink, offering a robust framework for assessing the efficacy of PV-UPFC technology in enhancing the overall power quality of the electrical power network.