Active Filter Based Harmonics Mitigation in Grid-Connected PV Systems

One essential component of human advancement is energy. Fossil fuels have been the primary energy source for many centuries, but as businesses and society grow, so does the demand for energy resources. However, fossil fuels produce emissions of greenhouse gases that cause climate change in addition to being depletable. Therefore, humanity must hasten the shift to a low-carbon economy due to the predictable rise in energy consumption and the depletion of fossil fuels, which necessitates the search for clean and renewable alternative energies. These consist of solar, geothermal, biomass, wind, and hydropower. Our planet's cleanest and most plentiful energy source is solar energy, which is also limitless. Solar energy, with its immense potential, is now a major subject of intense research and swift advancement, particularly in recent years. Rooftop photovoltaic (PV) systems are arising as a popular replacement for electricity generation. Installing and connecting PV systems to the electrical grid is now simpler thanks to advancements in power electronic devices. Nonetheless, ensuring power quality is essential when integrating PV systems with the power grid. Among power quality issues, harmonics pose a substantial difficulty because of the reliance on various power electronic components in PV systems. This paper focuses on designing and evaluating the performance of a rooftop solar system connected to power grid in a solar-rich location, using simulation tools to address harmonic mitigation. By successfully reducing harmonics in the grid-connected PV system, it seeks to improve power quality.