Comparative Study of Perturb & Observe, Modified Perturb & Observe and Modified Incremental Conductance MPPT Techniques for PV Systems

Mahmood, Mohanad H.; Ali, Inaam I.; Ahmed, Oday A.

doi:10.30684/etj.v38i4A.329

	Comparative Study of Perturb & Observe, Modified Perturb & Observe and Modified Incremental Conductance MPPT Techniques for PV Systems
Engineering and Technology Journal
Article 1, Volume 38, 4A, 2020, Pages 478-490 PDF (1.28 M)
DOI: 10.30684/etj.v38i4A.329
Authors
Mohanad H. Mahmood^* ; Inaam I. Ali^* ; Oday A. Ahmed
Electrical Engineering Department, University of Technology, Baghdad, Iraq
Abstract
This paper presents a modified maximum power point tracking algorithm (Modified MPPT) for PV systems based on incremental conductance (IC) algorithm. This method verified with the dynamic irradiance and sudden change of irradiance, the comparisons with conventional methods, for example, the perturbation and observation (P&O) and Modified perturbation and observation (Modified P&O) were performed. A photovoltaic (PV) panel was simulated and tested using MATLAB/Simulink based on PV panel at Power Electronics Laboratory. The results show that this method capable to find the maximum power point (MPP) under dynamic behavior faster than ( P&O) and Modified P&O). Reduced oscillation of MPP indicates enhanced efficiency, providing maximum power transfer to load
Keywords
Boost converter; Impedance matching; Maximum power point tracking (MPPT); Modified Perturb and Observation (Modified P&O)

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