A switching-based extremum seeking control scheme. Issue 8 (3rd August 2017)

• Record Type: Journal Article
• Authors: Chen, Songlin; Wang, Libin; Ma, Kemao; Zhao, Hui
• Is Part Of: International journal of control. Volume 90:Issue 8(2017)
• Page Start: 1688
• Page End: 1702
• Publication Date: 2017-08-03
• Subjects: Extremum seeking -- sliding mode -- steady-state oscillation -- switching; Automatic control -- Periodicals; Electronic journals; 629.8
• DOI: 10.1080/00207179.2016.1219067
• Languages: English
• ISSNs: 0020-7179

Abstract

ABSTRACT: In this paper, a novel sliding-mode analysis method is proposed for the traditional sliding-mode-based extremum seeking control (ESC) scheme. Based on the method, a more rigorous and more concise stability proof of the scheme is presented. Furthermore, a novel switching-based ESC scheme is designed by combining traditional sliding-mode-based ESC and a perturbation-based ESC without steady-state oscillation. This proposed scheme can overcome the steady-state oscillation of sliding-mode-based ESC scheme as well as keep rapid, robust convergence. The stability analysis of the proposed scheme is also provided. The simulation examples show the effectiveness and advantages of the scheme.