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Optimization of perturb and observe maximum power point tracking method

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TLDR
In this article, the perturb and observe (PO) algorithm is used in photovoltaic (PV) systems to maximize the PV array output power by tracking continuously the maximum power point (MPP) which depends on panels temperature and on irradiance conditions.
Abstract
Maximum power point tracking (MPPT) techniques are used in photovoltaic (PV) systems to maximize the PV array output power by tracking continuously the maximum power point (MPP) which depends on panels temperature and on irradiance conditions. The issue of MPPT has been addressed in different ways in the literature but, especially for low-cost implementations, the perturb and observe (PO moreover, it is well known that the P&O algorithm can be confused during those time intervals characterized by rapidly changing atmospheric conditions. In this paper it is shown that, in order to limit the negative effects associated to the above drawbacks, the P&O MPPT parameters must be customized to the dynamic behavior of the specific converter adopted. A theoretical analysis allowing the optimal choice of such parameters is also carried out. Results of experimental measurements are in agreement with the predictions of theoretical analysis.

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Journal ArticleDOI

Low cost and high efficiency of single phase photovoltaic system based on microcontroller

TL;DR: The conventional single phase PV system has a low cost, high efficiency but also good power quality which represents a good opportunity to use it in many stand alone photovoltaic applications such as houses lighting.
Journal ArticleDOI

Study of a Low-Cost PV Emulator for Testing MPPT Algorithm Under Fast Irradiation and Temperature Change

TL;DR: The experimental results show that the PV emulator can provide a simple, efficient and low-cost way for users (researchers, engineers, students, etc.) to test and validate their MPPT algorithms.
Journal ArticleDOI

Photovoltaic Modified β-Parameter-based MPPT Method with Fast Tracking

TL;DR: In this article, a modified β-parameter-based method was proposed for photovoltaic (PV) power system application to extract the maximum possible power under changing irradiation and temperature conditions.
Journal ArticleDOI

Low-Cost High-Efficiency Discrete Current Sensing Method Using Bypass Switch for PV Systems

TL;DR: The maximum power point tracking ability of the PV system is evaluated under a rapidly changing cloudy day condition and the superior performance of the proposed technique is demonstrated by comparing the results obtained using conventional current sensing method and proposedCurrent sensing method.
Journal ArticleDOI

Hybrid global maximum power point tracking approach for photovoltaic power optimisers

TL;DR: A new hybrid global maximum power point (MPP) tracking method is introduced in this study by using an improved 0.8 V OC model-based algorithm containing a smart power scanning procedure which is based on the sign of a change of photovoltaic module power.
References
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Journal ArticleDOI

Maximum photovoltaic power tracking: an algorithm for rapidly changing atmospheric conditions

TL;DR: In this article, the authors developed an incremental conductance (IncCond) algorithm to track the maximum power operating point (MPOP) of photovoltaic (PV) power generation systems.
Journal ArticleDOI

Development of a microcontroller-based, photovoltaic maximum power point tracking control system

TL;DR: In this paper, a buck-type DC/DC converter is used to maximize the photovoltaic array output power, irrespective of the temperature and irradiation conditions and of the load electrical characteristics.
Journal ArticleDOI

Comparative study of maximum power point tracking algorithms

TL;DR: It is found that the P&O method, when properly optimized, can have MPPT efficiencies well in excess of 97%, and is highly competitive against other MPPT algorithms.
Book

Basic circuit theory

Journal ArticleDOI

Implementation of a DSP-controlled photovoltaic system with peak power tracking

TL;DR: A simple method of tracking the maximum power points (MPPs) and forcing the system to operate close to these points is presented, and the principle of energy conservation is used to derive the large- and small-signal model and transfer function.
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