Results 251 to 260 of about 299,337 (283)

Analysis and control of mismatch power loss in photovoltaic arrays

Progress in Photovoltaics: Research and Applications, 1995
AbstractConnecting photovoltaic cells to form an array can cause problems when the characteristics of the cells are not matched. This problem, known as mismatch, can reduce the power output of the array and lead to cell degradation through localized heating of individual cells. Such problems can arise simply through the shading of a single cell.
David Roche, Hugh Outhred, R. John Kaye
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Analysis Model of Mismatch Power Losses in PV Systems

Journal of Solar Energy Engineering, 2009
A novel procedure to extract and analyze the power losses, mainly due to mismatch effects, in a photovoltaic (PV) system is presented. The developed model allows the extraction of the main PV module and PV array parameters from I-V characteristics, as well as in dynamic behavior under real conditions of work.
A. Chouder, S. Silvestre
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Forecasting photovoltaic array power production subject to mismatch losses

Solar Energy, 2010
The development of photovoltaic (PV) energy throughout the world this last decade has brought to light the presence of module mismatch losses in most PV applications. Such power losses, mainly occasioned by partial shading of arrays and differences in PV modules, can be reduced by changing module interconnections of a solar array. This paper presents a
Picault, Damien, Raison, Bertrand, Bacha, Seddik, de La Casa, Juan, Aguilera, Jorge   +4 more
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Interconnection Topologies for Floating Photovoltaic System to Enhance the Power Output by Reducing the Mismatch Losses

2022 IEEE PES 14th Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2022
Floating photovoltaic (FPV) systems are the global trend in solar power generation technology with the added advantage of reducing the water crisis in this climate change. The automatic cooling effect maintaining the panel temperature increase the energy output from these water-based PV systems compared to land-based systems.
Ravichandran N., Andreotti A., Pagano M., Di Pasquale A., Volpe F.   +4 more
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Impact of losses and mismatches on power and efficiency of Wireless Power Transfer Systems with controlled secondary-side rectifier

Integration, 2016
Abstract In this paper an effective model for the power and efficiency analysis of Wireless Power Transfer Systems (WPTSs) is proposed. Such enhanced model includes modulation of duty-cycle and phase-shift for the secondary side controlled rectifier, as well as power losses of semiconductor devices and parameters mismatches of resonant elements.
DI CAPUA, GIULIA, FEMIA, Nicola, Lisi, Gianpaolo   +2 more
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Mismatch Power Loss Reduction on Thermoelectric Generator Systems Using Maximum Power Point Trackers

2006 25th International Conference on Thermoelectrics, 2006
A new concept of maximum power point tracking control method for Thermoelectric Power Generator (TEG) systems has been developed. The virtual load conductance of the load is feedback controlled to maintain the same value of the internal conductance of the Thermoelectric (TE) array using DC-DC converter.
H. Nagayoshi, T. Kajikawa
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Influence of the Current Mismatch in Triple-Junction Solar Cells on Power Losses in S3R

IEEE Journal of Photovoltaics, 2014
This paper presents the results of an experimental investigation of the transient behavior of illuminated triple-junction solar cells (TJSCs). The experimental data have shown that the transient behavior of TJSCs during the transition between the open-circuit point and short-circuit point (SCP), and the maximum-power point and SCP has a complex shape ...
Nikolay N. Goryashin, Andrey V. Karpenko, Alexander S. Sidorov   +2 more
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Mismatch losses in PV power generators caused by partial shading due to clouds

2013 4th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2013
Clouds cause spatial and temporal variability of solar radiation which is the main cause of fluctuating photovoltaic power fed into the grid. TUT solar PV power station research plant has been designed to enable systematic and thorough analysis of the dynamic phenomena in energy conversion processes of grid-connected solar PV power systems.
D. Torres Lobera, S. Valkealahti
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Novel Hybrid PV Configurations to Enhance the Output Power and Efficiency by Minimising the Number of Peaks and Mismatching Loss

IETE Journal of Research, 2021
The performance of the Photovoltaic (PV) array is greatly hampered by Partial Shading Conditions (PSCs). The output power and efficiency of the PV array degrades substantially under PSC.
Aditi Atul Desai, Suresh Mikkili
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Mismatch Losses in Photovoltaic Power Generators Due to Partial Shading Caused by Moving Clouds

2012
In this paper, we have investigated the effect of partial shading due to moving clouds on mismatch losses of five different PV power generator configurations. These configurations are a string of six series-connected PV modules, two strings of three series-connected PV modules, which are either separately controlled or connected in parallel, and three ...
Mäki Anssi, Valkealahti Seppo
openaire   +1 more source