
 One of the key reasons contributing to a reduction in the performance of a solar photovoltaic (SPV) system is the presence of partial shade on the solar panels. It is necessary to use maximum power point tracking (MPPT) in SPV systems to get around the non-linear behaviour of photovoltaic panels. This research analyses the reduction in power output of SPV systems caused by partial shading. In the latter part of the paper, the improved dynamic behaviour-based ant colony optimization MPPT approach under the effect of module-level partial shading is implemented in MATLAB®/Simulink®. Various partial shading levels were applied to SPV modules to evaluate the system performance. The proposed system follows the maximum power point with 99.9% accuracy and a response time of 2 ms. The addition of a weight coefficient accelerates the convergence of the algorithm.

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Power enhancement using improved maximum power point tracking for solar photovoltaic systems under partial shading

Hardware implementation of improved perturb and observe maximum power point tracking technique for photovoltaic systems with zero oscillations

Photovoltaic (PV) systems use maximum power point tracking (MPPT) devices for extracting maximum power from solar panel irrespective of dynamic change in temperature and irradiance. In this paper, concise and organized assessment of numerous maximum power point (MPP) methods is discussed that encompasses the perturb and observe (PO therefore, the right literature review is crucial while designing photovoltaic systems. The comparison of various MPP tracking algorithms is likewise given. Further, mathematical modeling of current equations of solar cell is also done. Moreover, the workability of perturb and observe MPPT is tested in MATLAB/Simulink and results carried out are also given.

Sajad Ahmad Tali

Papers

Systematic Study of Maximum Power Point Tracking Methods Used in Photovoltaic-Based Systems

Hardware implementation of improved perturb and observe maximum power point tracking technique for photovoltaic systems with zero oscillations