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<p>This paper presents an advanced approach to enhance the performance of grid-connected photovoltaic (PV) systems under partial shading conditions. The proposed method integrates a flyback converter with the Sovereign Butterfly Optimization Algorithm for Maximum Power Point Tracking. The flyback converter is rigorously analysed for reliability, performance, and grid compliance. To mitigate voltage harmonics and phase delays, a controller-based anomaly obliteration technique is employed, processing three-phase currents through dq0 frames. Additionally, a Subsystem Synchronization Control Strategy is applied to synchronize active and non-active currents injected into the grid. Simulation results demonstrate significant improvements, achieving 99.31% tracking accuracy, 2.60% minimum power oscillation around the maximum power point, and maintaining the Total Harmonic Distortion of grid current at 1.94%, meeting IEC 61727 standards. This innovative approach offers a robust solution for enhancing grid-connected PV systems’ performance under partial shading conditions.</p>

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Sovereign Butterfly Optimization and Flyback Converter Integration for Robust Photovoltaic Systems Under Partial Shading

  • 期刊论文

  • 发表日期：

    2025年3月8日

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  • Saqib Asgar Kanth,
  • Baziga Youssuf,
  • Sheikh Javed Iqbal

摘要

This paper presents an advanced approach to enhance the performance of grid-connected photovoltaic (PV) systems under partial shading conditions. The proposed method integrates a flyback converter with the Sovereign Butterfly Optimization Algorithm for Maximum Power Point Tracking. The flyback converter is rigorously analysed for reliability, performance, and grid compliance. To mitigate voltage harmonics and phase delays, a controller-based anomaly obliteration technique is employed, processing three-phase currents through dq0 frames. Additionally, a Subsystem Synchronization Control Strategy is applied to synchronize active and non-active currents injected into the grid. Simulation results demonstrate significant improvements, achieving 99.31% tracking accuracy, 2.60% minimum power oscillation around the maximum power point, and maintaining the Total Harmonic Distortion of grid current at 1.94%, meeting IEC 61727 standards. This innovative approach offers a robust solution for enhancing grid-connected PV systems’ performance under partial shading conditions.