Application of Centered Differentiation and Steepest Descent to Maximum Power Point Tracking

TitleApplication of Centered Differentiation and Steepest Descent to Maximum Power Point Tracking
Publication TypeJournal Article
Year of Publication2007
AuthorsXiao, W., W. G. Dunford, P. R. Palmer, and A. Capel
JournalIndustrial Electronics, IEEE Transactions on
Volume54
Pagination2539 -2549
Date Publishedoct.
ISSN0278-0046
Keywordsactive perturbations, centered differentiation, dynamic response, hill climbing method, maximum power point tracking, oscillation, oscillations, photovoltaic power systems, power generation control, steepest descent
Abstract

This paper concentrates on two critical aspects to improve the performance of maximum power point tracking (MPPT). One improvement is to accurately locate the position of the maximum power point (MPP) by using the centered differentiation. Another effort is to reduce the oscillation around the MPP in steady state by controlling active perturbations. This paper also adopts the method of steepest descent for MPPT, which shows faster dynamic response and smoother steady state than the method of hill climbing. Comprehensive experimental evaluations have successfully illustrated the effectiveness of the proposed algorithm.

URLhttp://dx.doi.org/10.1109/TIE.2007.899922
DOI10.1109/TIE.2007.899922

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