Architectural analysis of photovoltaic systems subjected to partial shading with a simple DC-DC step-up converter

Author

Buddala, Santhoshi Snigdha ; Devabhaktuni, Vijay ; Vemuru, Srinivasa

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Univ. of Toledo, Toledo, OH, USA

fYear

2013

fDate

20-23 Oct. 2013

Firstpage

494

Lastpage

498

Abstract

The output voltage of parallel connected solar cells is very low to drive the load connected across its terminals even though they are efficient in delivering the peak output power even under extreme partial shading conditions. A basic dc-dc boost converter circuit is used in this paper to evaluate the performance of a parallel architecture in comparison with series and series-parallel architectures. SPICE simulations are used to analyze the architectures and identify the best configuration in terms of power conversion efficiency under different partial shading scenarios as well as in normal operation.

Keywords

DC-DC power convertors; parallel architectures; photovoltaic power systems; solar cells; DC-DC step-up converter; SPICE simulations; architectural analysis; dc-dc boost converter; extreme partial shading; parallel architecture; parallel connected solar cells; photovoltaic systems; power conversion efficiency; Parallel architectures; Photovoltaic systems; Power conversion; Renewable energy sources; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Renewable Energy Research and Applications (ICRERA), 2013 International Conference on

Conference_Location

Madrid

Type

conf

DOI

10.1109/ICRERA.2013.6749805

Filename

6749805