Harmonic Distortion Analysis: Grid-Connected Solar Systems, EGH454

This project investigates harmonic distortion in a three-phase grid-connected solar system. The study utilizes MATLAB and Simulink to simulate the system's performance, both with and without harmonic filters. The primary goal is to analyze the total harmonic distortion (THD) and its impact on the equipment connected to the system, including the potential reduction in equipment lifespan due to harmonic-induced heating. The project explores various techniques for harmonic content reduction, such as Vector Pulse Width Modulation (SVPWM) and resonant current control. The simulations provide waveforms for voltage, current, and power, allowing for a comparative analysis of the system's behavior with and without filtering. The project also includes the calculation of the estimated life of the equipment based on Dakin’s model and the impact of harmonic distortion on it. The results demonstrate the effectiveness of harmonic filters in improving power quality and reducing the negative impacts of harmonic distortion, such as increased consumer power bills and potential equipment failure. The project concludes with an assessment of the power quality improvement through harmonic reduction and the importance of protecting the solar photovoltaic system.