Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Dust effects on PV array performance: in-field observations with non-uniform patterns
Year:2014
Research Areas
  • Electric engineers, electronic and automatic (eil),
  • Solar cells,
  • Photovoltaic generation
Information
Abstract
This paper presents the impact of non-homogeneous deposits of dust on the performance of a PV array. The observations have been made in a 2-MW PV park in the southeast region of Spain. The results are that inhomogeneous dust leads to more significant consequences than the mere short-circuit current reduction resulting from transmittance losses. In particular, when the affected PV modules are part of a string together with other cleaned (or less dusty) ones, operation voltage losses arise. These voltage losses can be several times larger than the short-circuit ones, leading to power losses that can be much larger than what measurements suggest when the PV modules are considered separately. Significant hot-spot phenomena can also arise leading to cells exhibiting temperature differences of more than 20 degrees and thus representing a threat to the PV modules' lifetime. Copyright © 2013 John Wiley & Sons, Ltd.
International
Si
JCR
Si
Title
Progress in Photovoltaics
ISBN
1062-7995
Impact factor JCR
9,696
Impact info
Volume
22
10.1002/pip.2348
Journal number
6
From page
666
To page
670
Month
SIN MES
Ranking
Participants
  • Autor: Antonio-P.Eduardo Lorenzo Pigueiras (UPM)
  • Autor: Rodrigo Moreton Villagra (UPM)
  • Autor: I. Luque
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)