A new method to obtain I-V characteristics curves of photovoltaic modules based on SEPIC and Cuk converters

被引：13

作者：

Duran, E. ^{[1
]}

Galan, J. ^{[1
]}

Andujar, J. M. ^{[1
]}

Sidrach-de-Cardona, M. ^{[2
]}

机构：

[1] Univ Huelva, Dept Elect Engn Comp & Automat, Huelva, Spain

[2] Univ Malaga, Dpto Fis Aplicada 2, E-29071 Malaga, Spain

来源：

EPE JOURNAL | 2008年 / 18卷 / 02期

关键词：

DC-DC converters; pulse width modulated power converters; photovoltaic modules; I-V tracers;

D O I：

10.1080/09398368.2008.11463676

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The basic operation of a solar cell, module or photovoltaic generator under different irradiation and temperature conditions is characterized by its I-V characteristic curve. Only the experimental measurement of the I-V curve allows us to know with precision the electrical parameters of a photovoltaic cell, module or array. This measure provides very relevant information for the design, installation and maintenance of photovoltaic systems. Currently, the I-V characteristic curve is obtained by connecting a variable charge to the panel terminals in order to achieve that the current of the terminals ranges from zero to the short circuit current. In this paper we propose a new experimental way to measure this characteristic curve by using Buck-Boost-Derived DC-DC converters. It has been proved that the optimal topologies for this purpose are the SEPIC (Single-Ended Primary Inductance Converter) and Cuk converters. The theoretical analysis performed has been validated by means of simulation and experimentally. Additionally, a comparison between three known conventional methods and the proposed one is provided.

引用

页码：5 / 15

页数：11