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http://dx.doi.org/10.5207/JIEIE.2013.27.11.020

The MPPT Control oh Photovoltaic System using FVSS-PO Method  

Ko, Jae-Sub (Sunchon National Univ.)
Chung, Dong-Hwa (Sunchon National Univ. Department of Electric Control Engineering)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.27, no.11, 2013 , pp. 20-26 More about this Journal
Abstract
This paper proposes the maximum power point tracking(MPPT) control of photovoltaic system using fuzzy based variable step size perturbation & observation(FVSS-PO) method. Conventional PO and incremental conductance(IC)MPPT control algorithm generally uses fixed step size. A small fixed step size will cause the tracking speed to decrease and tracking accuracy of the MPP will decrease due to large fixed step size. Therefore, the fixed step size can't be satisfying both the tracking speed and the tracking accuracy. This paper proposes FVSS-PO MPPT algorithm that adjusts automatically step size of PO by fuzzy control according to operating conditions. The validity of MPPT algorithm proposed in this paper prove through compare with conventional PO MPPT algorithm.
Keywords
Photovoltaic; MPPT; Fuzzy Control; Step Size; Variable Step Size;
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Times Cited By KSCI : 2  (Citation Analysis)
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