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Analysis of a Traditional and a Fuzzy Logic Enhanced Perturb and Observe Algorithm for the MPPT of a Photovoltaic System

by and *,†
Department of Electrical Engineering, Institute of Engineering of Porto, 4249-015 Porto, Portugal
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Received: 1 December 2020 / Revised: 2 January 2021 / Accepted: 3 January 2021 / Published: 14 January 2021
(This article belongs to the Special Issue Algorithms for PID Controller 2021)
This paper presents the results obtained for the maximum power point tracking (MPPT) technique applied to a photovoltaic (PV) system, composed of five solar panels in series using two different methodologies. First, we considered a traditional Perturb and Observe (P&O) algorithm and in a second stage we applied a Fuzzy Logic Controller (FLC) that uses fuzzy logic concepts to improve the traditional P&O; both were implemented in a boost converter. The main aim of this paper is to study if an artificial intelligence (AI) based MPPT method, can be more efficient, stable and adaptable than a traditional MPPT method, in varying environment conditions, namely solar irradiation and/or environment temperature and also to analyze their behaviour in steady state conditions. The proposed FLC with a rule base collection of 25 rules outperformed the controller using the traditional P&O algorithm due to its adaptative step size, enabling the FLC to adapt the PV system faster to changing environment conditions, guessing the correct maximum power point (MPP) faster and achieving lower oscillations in steady state conditions, leading to higher generated energy due to lower losses both in steady state and dynamic environment conditions. The simulations in this study were performed using MATLAB (Version 2018)/Simulink. View Full-Text
Keywords: boost converter; fuzzy logic controller (FLC); maximum power point (MPP); maximum power point tracking (MPPT); Perturb and Observe (P&O); photovoltaic (PV) boost converter; fuzzy logic controller (FLC); maximum power point (MPP); maximum power point tracking (MPPT); Perturb and Observe (P&O); photovoltaic (PV)
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MDPI and ACS Style

Remoaldo, D.; Jesus, I. Analysis of a Traditional and a Fuzzy Logic Enhanced Perturb and Observe Algorithm for the MPPT of a Photovoltaic System. Algorithms 2021, 14, 24. https://0-doi-org.brum.beds.ac.uk/10.3390/a14010024

AMA Style

Remoaldo D, Jesus I. Analysis of a Traditional and a Fuzzy Logic Enhanced Perturb and Observe Algorithm for the MPPT of a Photovoltaic System. Algorithms. 2021; 14(1):24. https://0-doi-org.brum.beds.ac.uk/10.3390/a14010024

Chicago/Turabian Style

Remoaldo, Diogo; Jesus, Isabel. 2021. "Analysis of a Traditional and a Fuzzy Logic Enhanced Perturb and Observe Algorithm for the MPPT of a Photovoltaic System" Algorithms 14, no. 1: 24. https://0-doi-org.brum.beds.ac.uk/10.3390/a14010024

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