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Partial shading in building integrated PV system: Causes, effects and mitigating techniques (2015)
Journal Article
Salam, Z., Ramli, Z., Ahmed, J., & Amjad, M. (2015). Partial shading in building integrated PV system: Causes, effects and mitigating techniques. International Journal of Power Electronics and Drive Systems, 6(4), 712-722. https://doi.org/10.11591/ijpeds.

This paper is aimed to provide a holistic understanding on the issues related to partial shading: its causes, the theoretical and physical reasons behind it, its implications on the BIPV system. Furthermore the possible mitigation techniques using t... Read More about Partial shading in building integrated PV system: Causes, effects and mitigating techniques.

An improved method to predict the position of maximum power point during partial shading for PV arrays (2015)
Journal Article
Ahmed, J., & Salam, Z. (2015). An improved method to predict the position of maximum power point during partial shading for PV arrays. IEEE Transactions on Industrial Informatics, 11(6), 1378-1387. https://doi.org/10.1109/TII.2015.2489579

For a photovoltaic (PV) system, it is widely assumed that the peaks of a partially shaded P-V curve are located at the multiples of 0.8V oc , where V oc is the open-circuit voltage of the PV module. However, this assumption - known as the of 0.8V oc... Read More about An improved method to predict the position of maximum power point during partial shading for PV arrays.

An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency (2015)
Journal Article
Ahmed, J., & Salam, Z. (2015). An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency. Applied Energy, 150, 97-108. https://doi.org/10.1016/j.apenergy.2015.04.006

This paper proposes a method to improve the efficiency of the P&O maximum power point tracker (MPPT) by reducing the steady state oscillation and eliminating the possibility of the algorithm to lose its tracking direction. A dynamic perturbation step... Read More about An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency.

A critical evaluation on maximum power point tracking methods for partial shading in PV systems (2015)
Journal Article
Ahmed, J., & Salam, Z. (2015). A critical evaluation on maximum power point tracking methods for partial shading in PV systems. Renewable and Sustainable Energy Reviews, 47, 933-953. https://doi.org/10.1016/j.rser.2015.03.080

As photovoltaic (PV) system suffers considerable energy loss due to partial shading (PS), various approaches have been proposed to mitigate this problem. Among these, improving the maximum power point tracker (MPPT) algorithm seems to be the most fea... Read More about A critical evaluation on maximum power point tracking methods for partial shading in PV systems.