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Adaptive Maximum Power Point Tracking Algorithm for Photovoltaic Power Systems

Chang Wook AHN, Ju Yeop CHOI, Dong-Ha LEE, Jinung AN

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Summary :

This paper presents an adaptive maximum power point tracking (MPPT) algorithm. The aim is to dynamically adjust the step length for updating duty ratio (or operating voltage) so as to make full utilization of the output power of photovoltaic (PV) systems, even under the rapidly changing atmospheric conditions. To this end, the average slope in terms of voltage and power is exploited for reducing the harmful effect of noise and error (incurred in measurement or quantization) on the slope. Also, a statistical decision-making scheme is employed for reliably deciding the time instant at which atmospheric conditions actually change. Empirical study has adduced grounds for its dominance over existing references.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.5 pp.1334-1337
Publication Date
2010/05/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.1334
Type of Manuscript
LETTER
Category
Energy in Electronics Communications

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