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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Proceedings ArticleDOI
Highly efficient variable-step-size maximum power point tracker for PV systems
Emad M. Ahmed,Masahito Shoyama +1 more
TL;DR: In this article, a variable step size based on single current sensor MPPT has been proposed to automatically adjust the step size to track the array maximum power point (MPP) which can effectively improve not only the steady state performance but also the dynamic response of the PV system.
Posted ContentDOI
High performance adaptive maximum power point tracking technique for off-grid photovoltaic systems.
TL;DR: An adaptive MPPT of a stand-alone PV system using an updated PI controller optimized by harmony search (HS) and the validity of the simulation results obtained at different irradiance and temperature levels is tested.
Proceedings ArticleDOI
Adaptive wireless sensor networks powered by hybrid energy harvesting for environmental monitoring
Francois Philipp,Ping Zhao,Faizal Arya Samman,Manfred Glesner,Kithsiri B. Dassanayake,Suhinthan Maheswararajah,Saman K. Halgamuge +6 more
TL;DR: This paper proposes an adaptive sensor node system combining a flexible hardware prototype and innovative energy harvesting techniques to optimise the performance of the network operating in a large farming environment.
Journal ArticleDOI
An efficient GWO MPPT for a PV system using impedance information acceleration
Fu-Sheng Pai,Po-Shing Tseng +1 more
TL;DR: Results revealed that the search performance of five iterations of the proposed method was similar to that of ten iterations of a traditional GWO-MPPT method under normal conditions without shading, which confirms the practicability of the suggested method in various applications.
Proceedings ArticleDOI
A control strategy for a grid-connected PV system with unbalanced loads compensation
TL;DR: In this article, a photovoltaic system that also compensates unbalanced loads is proposed, which is implemented with a four leg voltage source inverter connected to the AC mains with accessible neutral.
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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