标题：Sub-Optimal Extremum Seeking Control * * This work is supported by the Fonds National de la Recherche Scientifique (FNRS) under Grant ASP 24923120 and under Grant MIS F.4526.17 ”Optimization-free Control of Nonlinear Systems subject to Constraints”
摘要：AbstractThis paper deals with the problem of steering a system at a certain percentage of the optimal cost, so as to keep a desired amount of reserve. This reserve can be used as a knob to counteract fast changes in the operating conditions of the system. In this paper, we consider the case where the system dynamics, as well as the analytical expression of the cost function, are unknown. We propose a modified version of extremum seeking control that, under certain assumptions, is able to keep a desired margin with respect to the estimated maximum. The theoretical properties of the presented scheme are analysed and the effectiveness of the approach is validated in simulation on a wind turbine example.
