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Variable structure extremum seeking control based on sliding mode gradient estimation for a class of nonlinear systems
2009 American Control Conference
This paper presents a new approach to extremum seeking control for a class of single-input-single-output nonlinear systems. With the analytic form of the performance function unknown a priori, a sliding mode observer is designed to estimate the gradient of the performance map. Based on the estimated gradient, a variable structure controller is proposed to search for the optimal operating point. We establish the conditions for the system states to enter a neighborhood of the optimal operatingdoi:10.1109/acc.2009.5160207 dblp:conf/amcc/FuO09 fatcat:pisnaf2qxzfrhd2weax5ut4viu