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International Journal of Photoenergy
Volume 2012 (2012), Article ID 672765, 7 pages
Research Article

MPPT Based on Sinusoidal Extremum-Seeking Control in PV Generation

1DEEEA, Universitat Rovira i Virgili, Avinguda Paisos Catalans 26, 43007 Tarragona, Spain
2LAAS, CNRS, 7 Avenue du Colonel Roche, 31077 Toulouse, France
3Université de Toulouse, UPS, INSA, INP, ISAE, LAAS, 31077 Toulouse, France

Received 25 October 2011; Accepted 8 December 2011

Academic Editor: Jean-Louis Scartezzini

Copyright © 2012 R. Leyva et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper analyses extremum-seeking control technique for maximum power point tracking circuits in PV systems. Specifically, the paper describes and analyses the sinusoidal extremum-seeking control considering stability issues by means a Lyapunov function. Based on this technique, a new architecture of MPPT for PV generation is proposed. In order to assess the proposed solution, the paper provides some experimental measurements in a 100 W prototype which corroborate the effectiveness of the approach.