Modeling the performance of low concentration photovoltaic systems

  • Reis F
  • Brito M
  • Corregidor V
 et al. 
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A theoretical model has been developed to describe the response of V-trough systems in terms of module temperature, power output and energy yield using as inputs the atmospheric conditions. The model was adjusted to DoubleSun (R) concentration technology, which integrates dual-axis tracker and conventional mono-crystalline Si modules. The good agreement between model predictions and the results obtained at WS Energia laboratory, Portugal, validated the model. It is shown that DoubleSue (R) technology increases up to 86% the yearly energy yield of conventional modules relative to a fixed flat-plate system. The model was also used to perform a sensitivity analysis, in order to highlight the relevance of the leading working parameters (such as irradiance) in system performance (energy yield and module temperature). Model results show that the operation module temperature is always below the maximum working temperature defined by the module manufacturers. (C) 2010 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Model
  • Photovoltaic
  • Sensitivity analysis
  • V-trough concentration

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  • F. Reis

  • M.C. Brito

  • V. Corregidor

  • J. Wemans

  • G. Sorasio

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