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 novel photovoltaic maximum power point tracking technique based on grasshopper optimized fuzzy logic approach
Laxman Bhukya,Srikanth Nandiraju +1 more
TL;DR: A novel Grasshopper optimized fuzzy logic control approach based MPPT technique is proposed, which overcomes the limitations such as slow convergence speed, steady-state oscillations, lower tracking efficiency as encountered in conventional methods viz. perturb & observed (P&O) and FLC techniques.
Proceedings ArticleDOI
Solar Battery Chargers for NiMH Batteries
F. Boico,Brad Lehman,K. Shujaee +2 more
TL;DR: In this paper, the authors proposed new solar battery chargers for NiMH batteries, which used a maximum power point tracker to increase charge speed and introduced voltage and temperature based charge control techniques.
Journal ArticleDOI
A New MPPT Technique for Fast and Efficient Tracking under Fast Varying Solar Irradiation and Load Resistance
TL;DR: The simulation results reveal that the response of the proposed MPPT technique is 4.6 times faster than that of the INC under these scenarios, and the proposed algorithm has higher efficiency.
Proceedings ArticleDOI
A cost-effective power ramp-rate control strategy for single-phase two-stage grid-connected photovoltaic systems
TL;DR: In this article, a cost-effective control strategy to limit the power ramp-rate for two-stage grid-connected photovoltaic (PV) systems is proposed.
Journal ArticleDOI
Adaptive Velocity PSO for Global Maximum Power Control of a PV Array Under Nonuniform Irradiation Conditions
TL;DR: An adaptive velocity particle swarm optimization (AVPSO) algorithm for tracking the global maximum of the multiple peak P–V characteristics, which includes the ability to sort particle's positions in each iteration, which prevents large changes in the PV voltage, thereby reducing the control effort of a PV voltage controller.
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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