Journal ArticleDOI
Optimization of perturb and observe maximum power point tracking method
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.read more
Citations
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Journal ArticleDOI
A modified Perturb & Observe MPPT technique to tackle steady state and rapidly varying atmospheric conditions
TL;DR: In this paper, a modified P&O method using directional step size is proposed that can effectively tackle steady state variations around maximum power point and dynamic variations in environmental conditions of temperature and solar radiation.
Journal ArticleDOI
An Efficient Modeling Technique to Simulate and Control Submodule-Integrated PV System for Single-Phase Grid Connection
Omair Khan,Weidong Xiao +1 more
TL;DR: In this paper, the authors provide an effective solution to simulate and control single-phase grid-tied photovoltaic systems that are based on a practical sub-MICs configuration, which considers all dynamic interactions among the maximum power point tracking (MPPT), PV submodule voltage regulation, dc-link voltage control, and double frequency ripple.
Journal ArticleDOI
Performance Evaluation of Parabolic Prediction to Maximum Power Point Tracking for PV Array
TL;DR: In this paper, a tracking method based on parabolic function is proposed to perform the photovoltaic maximum power point tracking, where the maximum power calculation is made from a parabolic convex function, and a systematic scheme is developed to adjust the concavity and optimal region of the approximate parabola for ensuring the iterative convergence of the proposed method.
Journal ArticleDOI
Solar Battery Chargers for NiMH Batteries
F. Boico,Brad Lehman,K. Shujaee +2 more
TL;DR: In this article, the authors proposed new solar battery chargers for NiMH batteries and showed that existing charge control methods can fail when charging by solar arrays in changing environmental conditions and introduced new voltage and temperature-based charge control techniques.
Journal ArticleDOI
A novel MPPT method for photovoltaic application under partial shaded conditions
Haithem Chaieb,Anis Sakly +1 more
TL;DR: In this paper, the authors proposed a new MPPT technique that gathers simplicity and effectiveness by combining the simplified accelerated particle swarm optimization (SAPSO), a variant of the Particle Swarm Optimisation (PSO) algorithm and the classical Hill Climbing (HC) algorithm.
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
D. P. Hohm,Michael Ropp +1 more
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.
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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