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This paper proposes the utilization of a Parallel Active filter (PAF) controlled by two different methods, proportional-integral (PI) and hysteresis controllers, in combination with L-filter, in order to enhance the power quality by eliminating the harmonic component generated by photovoltaic gen-erators in electrical grid. A PQ theory is used to extract the harmonic component of the injected current into the power grid. However, the quality of injected current is influenced by the solar irradiance levels. Hence, this study aims to investigate the influence of solar irradiance on the Total Harmonic Distortion of the injected current (THDi) and to conduct a comparative analysis of hysteresis and PI controllers in Grid-Connected PV systems.

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Enhancing Power Quality in Grid Connected PV Systems: Investigating the Influence of Solar Irradiance on Harmonic Mitigation and Control Techniques Using Hysteresis and PI Controllers

  • 会议论文

  • 发表日期：

    2025年

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  • Mohamed Oukili,
  • Mustapha Melhaoui,
  • Mohammed Chennani,
  • Taoufik Ouchbel

摘要

This paper proposes the utilization of a Parallel Active filter (PAF) controlled by two different methods, proportional-integral (PI) and hysteresis controllers, in combination with L-filter, in order to enhance the power quality by eliminating the harmonic component generated by photovoltaic gen-erators in electrical grid. A PQ theory is used to extract the harmonic component of the injected current into the power grid. However, the quality of injected current is influenced by the solar irradiance levels. Hence, this study aims to investigate the influence of solar irradiance on the Total Harmonic Distortion of the injected current (THDi) and to conduct a comparative analysis of hysteresis and PI controllers in Grid-Connected PV systems.