Phasor extremum seeking control with adaptive perturbation amplitude

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Conference article in proceedings
Date
2016-12-27
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Language
en
Pages
6
7069-7074
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2016 IEEE 55th Conference on Decision and Control (CDC), Proceedings of the IEEE Conference on Decision & Control
Abstract
In this paper, we propose a perturbation amplitude adaption scheme for phasor extremum seeking control based on the plant's estimated gradient. By using phasor extremum seeking instead of classical extremum seeking, the problem of algebraic loops in the controller formulation is avoided. Furthermore, a stability analysis for the proposed method is provided, which is the first stability analysis for extremum seeking controllers using adaptive amplitudes. The proposed method is illustrated using numerical examples and it is found that changes in optimum can be tracked accurately while the steady-state perturbations can be reduced significantly.
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Atta , K T , Hostettler , R , Birk , W & Johansson , A 2016 , Phasor extremum seeking control with adaptive perturbation amplitude . in 2016 IEEE 55th Conference on Decision and Control (CDC) . , 7799358 , Proceedings of the IEEE Conference on Decision & Control , IEEE , pp. 7069-7074 , IEEE Conference on Decision and Control , Las Vegas , United States , 12/12/2016 . https://doi.org/10.1109/CDC.2016.7799358