DocumentCode :
1563021
Title :
A new approach to obtain I-V and P-V curves of photovoltaic modules by using DC-DC converters
Author :
Enrique, J.M. ; Duran, E. ; M, Andujar J. ; Andujar, J.M. ; Bohorquez, M.A. ; Carretero, Jesus
Author_Institution :
Departamento de Ingenieria Electron., de Sistemas Informaticos y Autom., Universidad de Huelva, Spain
fYear :
2005
Firstpage :
1769
Lastpage :
1772
Abstract :
The achievement of I-V and P-V curves of photovoltaic modules gives the possibility of obtaining their characteristic parameters: the short-circuit current (I/sub sc/), the open-circuit voltage (V/sub oc/), the maximum power point (MPP) and the fill factor (FF). These values are significant for the design of a photovoltaic system. These curves depend on the global irradiance (G), the temperature (T) and the spectral distribution of the solar irradiation. In this paper, a new methodology to determine the afore mentioned curves by using DC-DC converters is proposed. This methodology allows carrying out the complete sweep of the voltage and the current (including V/sub oc/ and I/sub sc/). Regarding the traditional methods, this new one provides the following advantages: a) minimum power loss with regard to the systems that operate in lineal zone (active zone); this implies several advantages in size and cost; and b) this new method allows an automatic adaptation of the interpolation interval.
Keywords :
DC-DC power convertors; short-circuit currents; solar cells; solar radiation; DC-DC converters; global irradiance; open-circuit voltage; photovoltaic modules; photovoltaic system; short-circuit current; solar irradiation; spectral distribution; Circuits; Costs; DC-DC power converters; Impedance; Photovoltaic systems; Pulse width modulation; Solar power generation; Temperature dependence; Temperature distribution; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Photovoltaic Specialists Conference, 2005. Conference Record of the Thirty-first IEEE
Conference_Location :
Lake Buena Vista, FL, USA
ISSN :
0160-8371
Print_ISBN :
0-7803-8707-4
Type :
conf
DOI :
10.1109/PVSC.2005.1488493
Filename :
1488493
Link To Document :
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