Regulation of Photovoltaic Voltage
Weidong Xiao
Dunford, W.G.
Palmer, P.R.
Capel, A.
Univ. of British Columbia, Vancouver, BC, Canada;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: June 2007
Volume: 54,
Issue: 3
On page(s): 1365-1374
ISSN: 0278-0046
INSPEC Accession Number: 9489028
Digital Object Identifier: 10.1109/TIE.2007.893059
Current Version Published: 2007-04-10
Abstract
In photovoltaic power systems, both photovoltaic modules and switching-mode converters present nonlinear and time-variant characteristics, which result in a difficult control problem. This paper presents an in-depth analysis and modeling to discover the inherent features of a photovoltaic power system. The method of successive linearization simplifies the nonlinear problem back to the linear case. This paper also presents the use of Youla parameterization to design a stable control system for regulating the photovoltaic voltage. The experimental and simulation results demonstrate the effectiveness of the presented analysis, design, and implementation.
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