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Automatic data acquisition system for testing photovoltaicconversion chains performances in real conditions

Published online by Cambridge University Press:  17 December 2010

S. Petibon ,
C. Cabal ,
F. Blanc ,
B. Estibals  and
C. Alonso
S. Petibon*
Affiliation:
CNRS, LAAS, 7 avenue du Colonel Roche, 31077 Toulouse, France
C. Cabal
Affiliation:
CNRS, LAAS, 7 avenue du Colonel Roche, 31077 Toulouse, France
F. Blanc
Affiliation:
CNRS, LAAS, 7 avenue du Colonel Roche, 31077 Toulouse, France
B. Estibals
Affiliation:
CNRS, LAAS, 7 avenue du Colonel Roche, 31077 Toulouse, France Université de Toulouse, UPS, INSA, INP, ISAE, LAAS, 31077 Toulouse, France
C. Alonso
Affiliation:
CNRS, LAAS, 7 avenue du Colonel Roche, 31077 Toulouse, France Université de Toulouse, UPS, INSA, INP, ISAE, LAAS, 31077 Toulouse, France
*
⋆ Correspondence:[email protected]
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Abstract

The analyses of the performance of a complete photovoltaic system require precisemeasuring equipment in order to obtain reliable comparative results. This paper presents acomputer-based instrumentation system suitable for a characterization of photovoltaicconversion chains. Consisting in a data acquisition stage, a data processor, photovoltaicgenerators and power conditioners, the system evaluates the respective efficiency ofmaximum power point tracker (MPPT) and power conditioner. The efficiency of unknown MPPTfunctions is estimated with great accuracy by means of an extremum control-based MPPT usedas a reference. Efficiency evaluations of two photovoltaic battery chargers during 4 daysillustrate the estimation procedure and the system test facilities.

Keywords

Data acquisitionphotovoltaic systemMPPTefficiencyconverter
Type
Research Article
Information
International Journal of Metrology and Quality Engineering , Volume 1 , Issue 2 , 2010 , pp. 129 - 137
Copyright
© EDP Sciences 2010

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References

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