Title :
I–V and P-V curves measuring system for PV modules based on DC-DC converters and portable graphical environment
Author :
Durán, E. ; Ferrera, M.B. ; Andújar, J.M. ; Mesa, M.S.
Author_Institution :
Dipt. de Ing. Electron., de Sist. Informaticos y Autom., Univ. of Huelva, Huelva, Spain
Abstract :
The photovoltaic (PV) modules or arrays can be characterized by their I-V and P-V curves. These curves depend on solar irradiance and temperature. There are many ways to obtain these curves, but the using of DC-DC converters as variable resistance offers advantages over the rest. This paper presents a circuit solution based on scaled DC-DC converter using IGBT to obtain the I-V and P-V curves of the PV modules or arrays. A portable graphical environment (virtual instrument, VI) has been developed to adjust the parameters of the developed measuring system and show the I-V and P-V curves together and other parameters in real time. The experimental results for the system proposed using 1 kW single-ended primary inductance converter (SEPIC) are shown.
Keywords :
DC-DC power convertors; photovoltaic power systems; DC-DC converters; I-V curves measuring system; IGBT; P-V curves measuring system; PV modules; photovoltaic modules; portable graphical environment; single-ended primary inductance converter; solar irradiance; temperature; Converters; Current measurement; Generators; Microcontrollers; Power supplies; Sensors; Voltage measurement;
Conference_Titel :
Industrial Electronics (ISIE), 2010 IEEE International Symposium on
Conference_Location :
Bari
Print_ISBN :
978-1-4244-6390-9
DOI :
10.1109/ISIE.2010.5637972
