Journal ArticleDOI
Optimization of perturb and observe maximum power point tracking method
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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 Digital Coreless Maximum Power Point Tracking Circuit for Thermoelectric Generators
TL;DR: Simulation results revealed that the MPPT circuit, which employs a boost-cascaded-with-buck converter, handled rapid variation of temperature and abrupt changes of load current; this method enables stable operation with high power transfer efficiency.
Proceedings ArticleDOI
Perturbation optimization of maximum power point tracking of photovoltaic power systems based on practical solar irradiance data
TL;DR: In this article, the authors proposed an optimized solution which can be regard as a trade-off between performance and cost, where the optimal selection of the perturb step size was designed off-line for a specific location based on their local meteorological data.
Journal ArticleDOI
HM/PWM Seamless Control of a Bidirectional Buck–Boost Converter for a Photovoltaic Application
TL;DR: Experimental results demonstrate that both solutions allow the converter input voltage control by showing a perfect tracking of 1-kHz square-type references, similar to those provided by a classical perturb-and-observe (P&O) MPPT algorithm but much faster.
Journal ArticleDOI
Achievement of MPPT by finite time convergence sliding mode control for photovoltaic pumping system
TL;DR: In this article, a new finite time stability approach is proposed for controlling the maximum power point tracking (MPPT) process based on variable structure sliding mode technique, which ensures the convergence in a given finite time.
Proceedings ArticleDOI
Optimization of Perturb and Observe control of grid connected PEM Fuel Cells
TL;DR: In this article, the use of the Perturb and observe (P&O) control strategy aimed at extracting the maximum allowable power from a Fuel Cell (FC) in a grid connected application is proposed.
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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