Topology Study of Photovoltaic Interface for Maximum Power Point Tracking
Weidong Xiao
Ozog, N.
Dunford, W.G.
British Columbia Univ., Vancouver, BC;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: June 2007
Volume: 54,
Issue: 3
On page(s): 1696-1704
ISSN: 0278-0046
INSPEC Accession Number: 9489040
Digital Object Identifier: 10.1109/TIE.2007.894732
Current Version Published: 2007-04-30
Abstract
This paper looks at the performance of photovoltaic modules in nonideal conditions and proposes topologies to minimize the degradation of performance caused by these conditions. It is found that the peak power point of a module is significantly decreased due to only the slightest shading of the module, and that this effect is propagated through other nonshaded modules connected in series with the shaded one. Based on this result, two topologies for parallel module connections have been outlined. In addition, dc/dc converter technologies, which are necessary to the design, are compared by way of their dynamic models, frequency characteristics, and component cost. Out of this comparison, a recommendation has been made
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