Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 112, Issue -, Pages 65-72Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2013.01.012
Keywords
Low-concentration photovoltaic (LCPV) system; Concentration photovoltaic (CPV); Dynamic resistance; Silicon solar PV module; Modelling; Simulation
Funding
- Gujarat Energy Development Agency (GEDA) [GEDA\EC:REC\March-2010/3/9174]
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The estimation of steady state and dynamic parameters is indispensable to extract maximum power from solar photovoltaic system. This article aims to extract steady state and dynamic parameters for a low-concentration photovoltaic system under actual test conditions. A theoretical model is reported to estimate dynamic resistance under varying concentration and temperature for low-concentration photovoltaic system. When the concentration ratio is changed from 1 sun to 5.17 suns the maximum power delivered by low-concentration photovoltaic system increased by threefold. The results show that the higher solar PV module temperature has negative impact on the open circuit voltage for a given concentration with negative temperature coefficient of approximate to -0.021 V/K. The observed dynamic resistance was in the range of 17.99 to 24.84 Omega for the low-concentration photovoltaic system under actual test conditions. (C) 2013 Elsevier B.V. All rights reserved.
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