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MPPT for Photovoltaic Modules via Newton-Like Extremum Seeking Control
Department of Electronic, Electrical and Automatic Control Engineering, University Rovira i Virgili, Avenue Paisos Catalans, Tarragona 43007, Spain
Laboratory for Analysis and Architecture of Systems, CNRS, 7, Avenue du Colonel Roche, Toulouse Cedex 4 31077, France
* Author to whom correspondence should be addressed.
Received: 30 May 2012; in revised form: 12 July 2012 / Accepted: 18 July 2012 / Published: 25 July 2012
Abstract: The paper adapts the Newton-like Extremum-Seeking Control technique to extract the maximum power from photovoltaic panels. This technique uses the gradient and Hessian of the panel characteristic in order to approximate the operating point to its optimum. The paper describes in detail the gradient and Hessian estimations carried out by means of sinusoidal dithering signals. Furthermore, we compare the proposed technique with the common Extremum Seeking Control that only uses the gradient. The comparison is done by means of PSIM simulations and it shows the different transient behaviors and the faster response of the Newton-like Extremum-Seeking Control solution.
Keywords: photovoltaics; Maximum Power Point Tracking; Extremum Seeking Control; Newton method
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Cite This Article
MDPI and ACS Style
Zazo, H.; del Castillo, E.; Reynaud, J.F.; Leyva, R. MPPT for Photovoltaic Modules via Newton-Like Extremum Seeking Control. Energies 2012, 5, 2652-2666.
Zazo H, del Castillo E, Reynaud JF, Leyva R. MPPT for Photovoltaic Modules via Newton-Like Extremum Seeking Control. Energies. 2012; 5(8):2652-2666.
Zazo, Héctor; del Castillo, Esteban; Reynaud, Jean François; Leyva, Ramon. 2012. "MPPT for Photovoltaic Modules via Newton-Like Extremum Seeking Control." Energies 5, no. 8: 2652-2666.