Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
In-Field Temperature Evaluation of Solar Modules by Time Dependent Open Circuit Voltage Measurements
Year:2014
Research Areas
  • Solar cells,
  • Technology of devices for engineering
Information
Abstract
A method of the p-n junction overheating temperature evaluation in PV modules operating in the maximum power point (MPP) regime has been elaborated. It does not require the specialized equipment, as well as the data on the open circuit (OC) voltage temperature coefficients measured in pulsed regime. The method consists in measuring several open circuit voltage magnitudes accompanied by temperature measurements on the external module surface near one of the cells. In the procedure, a fast transition from MPP to OC operational regime is carried out, at which a time-dependent voltage measurement is performed with the help of a memory oscilloscope. The OC voltage temperature coefficient, as well as a ?reference? OC voltage magnitude in a ?cold? module (the conditions realized at the moment after instant opening the module to the sun illumination) are determined by calculations. Therefore, mechanical shuttering the module aperture area is not necessary (a procedure, which can not be standardized). Methodological temperature evaluation accuracy is higher, if PV modules of higher conversion efficiency are tested.
International
Si
Congress
29th European Photovoltaic Solar Energy Conference and Exhibition (29th EU PVSEC)
960
Place
Amsterdam (NL)
Reviewers
Si
ISBN/ISSN
3-936338-34-5
10.4229/EUPVSEC20142014-4BO.10.6
Start Date
22/09/2014
End Date
26/09/2014
From page
2008
To page
2011
Proc. 29th European Photovoltaic Solar Energy Conference and Exhibition
Participants
  • Autor: V.D. Rumyantsev
  • Autor: A.V. Chekalin
  • Autor: N.Yu. Davidyuk
  • Autor: N.A. Sadchikov
  • Autor: Antonio Luque Lopez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Departamento: Electrónica Física
  • Centro o Instituto I+D+i: Instituto de Energía Solar
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Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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