Title :
Automatic measurement system for testing photovoltaic conversion chains
Author :
Cid-Pastor, A. ; Alonso, C. ; Estibals, B. ; Lagrange, D. ; Martinez-Salamero, L.
Author_Institution :
LAAS-CNRS, Toulouse, France
Abstract :
This paper presents a computer-based instrumentation system suitable fur the characterization of photovoltaic conversion structures. Consisting of a data acquisition stage, a data processor, twelve photovoltaic generators and several power conditioners, the system automatically evaluates the respective efficiency of maximum power point tracking (MPPT) and power conditioning. The efficiency of unknown MPPT functions is estimated with great accuracy by means of an extremum control-based MPPT used as a reference. Evaluating the efficiency of three photovoltaic battery chargers during a 8-hours day of solar irradiation illustrates the estimation procedure and the system test facilities.
Keywords :
automatic testing; battery charge measurement; data acquisition; photovoltaic power systems; power control; sunlight; automatic measurement system; computer-based instrumentation; data acquisition; data processor; maximum power point tracking; photovoltaic battery charger; photovoltaic conversion chains; photovoltaic generators; power conditioners; solar irradiation; testing; Automatic control; Automatic testing; Batteries; Data acquisition; Instruments; Photovoltaic systems; Power conditioning; Power generation; Solar power generation; System testing;
Conference_Titel :
Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE
Print_ISBN :
0-7803-8730-9
DOI :
10.1109/IECON.2004.1432303
