NDLI: Comparative analysis of buck-boost converters used to obtain I–V characteristic curves of photovoltaic modules

Content Provider	IEEE Xplore Digital Library
Author	Duran, E. Sidrach-de-Cardona, M. Galan, J. Andujar, J.M.
Copyright Year	2008
Description	Author affiliation: Dipt. de Ing. Electron., Univ. of Huelva, Huelva (Duran, E.)
Abstract	In this paper, the usefulness of several topologies of DC-DC converters for measuring the characteristic curves of photovoltaic (PV) modules is theoretically analyzed. Eight topologies of DC-DC converters with step-down/step-up conversion relation (buck-boost single inductor, CSC (canonical switching cell), Cuk, SEPIC (single-ended primary inductance converter), zeta, flyback, boost-buck-cascaded, and buck-boost-cascaded converters) are compared and evaluated. This application is based on the property of these converters for emulating a resistor when operating in continuous conduction mode. Therefore, they are suitable to implement a system capable of measuring the I-V curve of PV modules. Other properties have been taken into account: input ripple, devices stress, size of magnetic components and input-output isolation. The study determines that SEPIC and Cuk converters are the most suitable for this application mainly due to the low input current ripple, allow input-output insulation and can be connected in parallel in order to measure PV modules o arrays with greater power. CSC topology is also suitable because it uses fewer components but of a larger size. Experimental results validate the comparative analysis.
Starting Page	2036
Ending Page	2042
File Size	517133
Page Count	7
File Format	PDF
ISBN	9781424416677
ISSN	02759306
DOI	10.1109/PESC.2008.4592243
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-15
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Converters Inductors Topology Stress Switches Capacitors Flyback transformers
Content Type	Text
Resource Type	Article

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