PSO‐based SMC variable step size P&O MPPT controller for PV systems under fast changing atmospheric conditions

2019 ◽  
pp. e2603 ◽  
Author(s):  
Abdelghani Harrag ◽  
Sabir Messalti
Keyword(s):  
Variable Step Size ◽  
Atmospheric Conditions ◽  
Step Size ◽  
Pv Systems ◽  
Variable Step ◽  
Mppt Controller

Experimental Verification of the main MPPT techniques for photovoltaic system

2017 ◽  
Vol 8 (1) ◽  
pp. 384 ◽  
Author(s):  
Mohamed Amine Abdourraziq ◽  
Mohamed Maaroufi
Keyword(s):  
Maximum Power ◽  
Photovoltaic System ◽  
Variable Step Size ◽  
Atmospheric Conditions ◽  
Step Size ◽  
Maximum Power Point ◽  
Pv Systems ◽  
Variable Step ◽  
Power Point ◽  
Global Mppt

<p>Photovoltaic (PV) technology is one of the important renewable energy resources as it is pollution free and clean. PV systems have a high cost of energy and low eciency, consequently, they not made it fully attractive as an alternative option for electricity users. It is essential that PV systems are operated to extract the maximum possible power at all times. Maximum Power Point (MPP) changes with atmospheric conditions (radiation and temperature), it is dicult to sustain MPP at all atmospheric levels. Many Maximum Power Point Tracking (MPPT) have been developed and implemented. These methods varied according to several aspects such as a number of sensors used, complexity, accuracy, speed, ease of hardware implementation, cost and tracking eciency. The MPPT techniques presented in the literature indicate that Variable step size of Perturb &amp; Observe (VP&amp;O), Variable step size of Incremental Conductance (VINC) and Perturb &amp; Observe (P&amp;O) using Fuzzy Logic Controller (FLC) can achieve reliable global MPPT with low cost and complexity and be easily adapted to dierent PV systems. In this paper, we established theoretical and experimental verication of the main MPPT controllers (VP&amp;O, VINC, and P&amp;O using FLC MPPT algorithms) that most cited in the literature. The three MPPT controller has been tested by MATLAB/Simulink to analyze each technique under dierent atmospheric conditions. The experimental results show that the performance of VINC and P&amp;O using FLC is better than VP&amp;O in term of response time.</p>

scholarly journals Variable Step Size P&O MPPT Controller to Improve Static and Dynamic PV System Performances

2018 ◽  
Vol 2 (2) ◽  
pp. 86 ◽  
Author(s):  
Hamza Bahri ◽  
Abdelghani Harrag
Keyword(s):  
Photovoltaic System ◽  
Variable Step Size ◽  
Atmospheric Conditions ◽  
Step Size ◽  
Pv System ◽  
Solar Module ◽  
Creative Commons ◽  
Study Results ◽  
Variable Step ◽  
Steady State Oscillation

In this paper, a variable step size P&O algorithm is used in order to improve the performance of a photovoltaic system in both dynamic and static plans. The efficiency of the proposed algorithm has been investigated successfully using the BP SX150S solar module connected to the DC-DC derived by a P&O MPPT algorithm. The comparative study results of both conventional fixed step size and the proposed variable step size P&O algorithms prove the effectiveness of the proposed algorithm compared to the standard fixed step size PO MPPT. The proposed algorithm reduces response time between 13.86% and 45.28% and the steady state oscillation between 83.33% and 100% leading to less power loss especially in case of fast changing atmospheric conditions.  This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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