Modified Perturb and Observe Maximum Power Point Tracking Algorithm for Partial Shading Conditions

Muhammad Rayyan Fazal, Zaheer Abbas, Muhammad Kamran, Inzamam ul Haq, Muhammad Naeem Ayyaz, Muhammad Mudassar

Abstract


Tracking the maximum power output is significantly important for the optimized photovoltaic operation. Maximum power point (MPP) is never constant and directly depends upon the solar irradiance and temperature of the cell. Hence, it is primordial to employ any technique to track MPP. This paper uses a modified Perturb and Observe (P&O) algorithm based on the Global Maximum Powerpoint (GMPP) for a standalone photovoltaic system. It turns out to be a novel, simpler and efficient approach to accommodate the aforementioned problem and efficiently track MPP under varying climatic conditions. Simulation results verify the effectiveness of our proposed scheme in terms of accuracy, tracking time, robustness, simplicity and efficiency under static and dynamic atmospheric circumstances. Under normal conditions, MPP is tracked within 0.1 seconds, while for partial shading, GMPP is tracked within 0.15 seconds with an efficiency of 99.19%.

Keywords


Maximum Power Point Tracker (MPPT), Photovoltaic (PV), Photovoltaic Systems, Perturb and Observe (P&O), Solar.

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DOI (PDF): https://doi.org/10.20508/ijrer.v9i2.9149.g7641

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