Mitigating Voltage Fluctuations in Grid-Tied PV Systems: Power Quality Enhancement

This paper investigates voltage fluctuations in grid-tied Photovoltaic (PV) systems, employing advanced methodologies within a 10 kW experimental setup that incorporates SunTech STP330-24/Vfw panels, an Advanced Power Electronics Inverter, and real-time monitoring, supported by MAT-LAB/Simulink simulations. Robust data collection utilizes real-time monitoring, data loggers, and a power quality analyzer, with calibration against simulated outputs. The integration of smart inverters, advanced control algorithms, real-time monitoring, energy storage, grid-interactive power electronics, and Hardware in the Loop simulation showcases substantial enhancements in power quality, stability, and response times. Key findings include minimal voltage fluctuations (0.25 V), a power quality index of 0.92, and rapid response times (12 ms). Comparative analyses validate proposed methodologies, emphasizing implications for heightened reliability, potential widespread adoption of advanced PV technologies, and informed policymaking for cleaner energy. This study makes a significant contribution to renewable energy goals, with suggested avenues for future research focusing on adaptability, buffering enhancement, iterative testing, and economic feasibility assessments, ensuring the continuous evolution of resilient and eco-friendly energy solutions.