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Adaptive self-tuning neurocontrol
Potočnik, Primož; Grabec, Igor - In: Mathematics and Computers in Simulation (MATCOM) 51 (2000) 3, pp. 201-207
A novel approach to adaptive direct neurocontrol is discussed in this paper. The objective is to construct an adaptive control scheme for unknown time-dependent nonlinear plants without using a model of the plant. The proposed approach is neural-network based and combines the self-tuning...
Persistent link: https://www.econbiz.de/10011050452
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Determination of magnetic field constant of DC permanent magnet motor powered by photovoltaic for maximum mechanical energy output
Kolhe, Mohanlal; Kolhe, Sunita; Joshi, J.C. - In: Renewable Energy 21 (2000) 3, pp. 563-571
photovoltaic (PV) array. The important parameter of DC permanent magnet (DC PM) motor is magnetic field constant. The method for …
Persistent link: https://www.econbiz.de/10010805474
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Geometrical prediction of maximum power point for photovoltaics
Kumar, Gaurav; Panchal, Ashish K. - In: Applied Energy 119 (2014) C, pp. 237-245
It is important to drive solar photovoltaic (PV) system to its utmost capacity using maximum power point (MPP) tracking …
Persistent link: https://www.econbiz.de/10010743639
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Estimation of the maximum power and normal operating power of a photovoltaic module by neural networks
Bahgat, A.B.G; Helwa, N.H; Ahamd, G.E; El Shenawy, E.T - In: Renewable Energy 29 (2004) 3, pp. 443-457
operating power (NOP) of a photovoltaic (PV) module. Two neural networks are developed; the first is the maximum power neural …
Persistent link: https://www.econbiz.de/10010805065
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Differentiation of multiple maximum power points of partially shaded photovoltaic power generators
Mäki, Anssi; Valkealahti, Seppo - In: Renewable Energy 71 (2014) C, pp. 89-99
Partial shading conditions have a major effect on the electrical characteristics of photovoltaic (PV) power generators …
Persistent link: https://www.econbiz.de/10011045190
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A new analytical solar cell I–V curve model
Saetre, Tor Oskar; Midtgård, Ole-Morten; Yordanov, … - In: Renewable Energy 36 (2011) 8, pp. 2171-2176
A simple mathematical equation that can represent empirical I–V curves of individual solar cells, systems of solar cells and modules has been found. The basic model is determined by four parameters: the open circuit voltage, the short circuit current and two shape parameters. With the four...
Persistent link: https://www.econbiz.de/10011045522
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Analytical resolution of the electrical four-parameters model of a photovoltaic module using small perturbation around the operating point
Toledo, F.J.; Blanes, José M.; Garrigós, Ausiàs; … - In: Renewable Energy 43 (2012) C, pp. 83-89
In this paper, a new real-time curve fitting method for photovoltaic (PV) modules is presented. The method solves the … four-parameters photovoltaic cell model without scanning the entire I–V curve, without sensing irradiance or temperature … photovoltaic module parameters in any conditions of illumination, temperature or degradation. Once the electrical model is known, a …
Persistent link: https://www.econbiz.de/10011046344
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Enhancing the maximum power point tracking techniques for photovoltaic systems
Eldahab, Yasser E. Abu; Saad, Naggar H.; Zekry, Abdalhalim - In: Renewable and Sustainable Energy Reviews 40 (2014) C, pp. 505-514
efficiency of the solar photovoltaic system. This paper provides a review of the conventional maximum power point tracking …, a complete photovoltaic generator system is modeled and simulated using the MATLAB/SIMULINK package. Simulation results …. Consequently, the new technique has a significant improvement in energy extraction efficiency from the photovoltaic array to the …
Persistent link: https://www.econbiz.de/10011077269
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Innovative and precise MPP estimation using P–V curve geometry for photovoltaics
Kumar, Gaurav; Trivedi, Milind B.; Panchal, Ashish K. - In: Applied Energy 138 (2015) C, pp. 640-647
This paper elaborates a direct maximum power point (MPP) finding method for solar photovoltaics (PV) based on quadratic regression analysis of the geometry of the power–voltage (P–V) curve of a typical PV cell or module. This method works in two stages for determination of the MPP parameters...
Persistent link: https://www.econbiz.de/10011116091
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A Power Management Strategy for Hybrid Photovoltaic Diesel System with Battery Storage
Mhamdi, Taoufik Ben Mohamed el Harry; Lassad, Sbita - In: International Journal of Energy Optimization and … 5 (2016) 1, pp. 35-47
This paper proposes a DC-AC-linked hybrid diesel/photovoltaic (PV)/battery storage system for stand-alone applications … diesel-engine generator and photovoltaic hybrid systems is evaluated based on technical constraints. A sizing of different …
Persistent link: https://www.econbiz.de/10012044540