Simulation and Analysis of Perturb and Observe MPP Tracking Algorithm under Uniform and Non-Uniform Irradiation
G.Sreenivasa Reddy1, T.Bramhananda Reddy2, M.Vijaya Kumar3

1G.Sreenivasa Reddy, Ph.D Scholar, Jawaharlal Nehru Technological University, Anantapur (Andhra Pradesh), India.
2T. Bramhananda Reddy, Professor, Department of Electrical & Electronics Engineering, G. Pulla Reddy Engineering College (Autonomous), Kurnool (Andhra Pradesh), India.
3M. Vijaya Kumar, Professor, Department of Electrical & Electronics Engineering, Jawaharlal Nehru Technological University, Anantapur (Andhra Pradesh), India.

Manuscript received on 24 January 2019 | Revised Manuscript received on 30 March 2019 | Manuscript published on 30 January 2019 | PP: 121-126 | Volume-7 Issue-6, March 2019 | Retrieval Number: E2112017519©BEIESP
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Abstract: The PV array generating power is always directly affected by various conditions such as angle of inclination, temperature, irradiation of sun, shading effect, and solar array configuration. In practice, PV arrays are commonly partially shaded by trees, clouds, nearby buildings, bird droppings and other utilities which leads to multiple peaks appear in the P-V curve, a global maximum and one or several local peaks. In this paper, the “perturb and observe” (P&O) maximum power point tracking (MPPT) algorithm employed for tracking the maximum power point under uniform and non-uniform irradiation conditions. Initially, this paper presents the P and O algorithm operation, later the boost converter performance details and finally the combination of a boost converter with P and O algorithm. The evaluation process has been carried systematically for the uniform and non-uniform solar irradiance and finally, the results are analyzed.
Keywords: Solar Photovoltaic array (PV); Uniform and non Uniform irradiation; Partial shading; Maximum Power Point tracking (MPPT); Perturb and Observe (P&O); Boost Converter
Scope of the Article: Digital Clone or Simulation