Neha Joshi
Independent Researcher
India
Abstract
The integration of wind turbine systems into the electrical grid has significantly increased over the past decades, driven by the global push toward renewable energy sources. However, grid-connected wind turbines introduce various power quality issues, notably harmonic distortions, which can adversely affect system reliability and efficiency. This paper presents an in-depth study on harmonic mitigation techniques applicable to grid-connected wind turbine systems as of 2021. It discusses the sources of harmonics, their impacts, and evaluates various passive, active, and hybrid filtering techniques. Statistical analysis is conducted to compare the effectiveness of these techniques based on existing literature and simulation data. The methodology involves modeling the harmonic profiles and testing mitigation solutions using established engineering tools. Results indicate that hybrid filters provide an optimal balance of cost and performance for harmonic mitigation. The study concludes by outlining future directions and emphasizing the need for tailored harmonic mitigation strategies to enhance grid stability in renewable energy integration.
Keywords
Harmonic mitigation, grid-connected wind turbine, power quality, passive filter, active filter, hybrid filter, power electronics, renewable energy integration.
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