Twisting sliding mode extremum seeking control without steady-state oscillation. Issue 2 (1st February 2021)

• Record Type: Journal Article
• Authors: He, Zongru; Chen, Songlin; Sun, Zhengyi; Wang, Libin; Ma, Kemao
• Is Part Of: International journal of control. Volume 94:Issue 2(2021)
• Page Start: 411
• Page End: 421
• Publication Date: 2021-02-01
• Subjects: Extremum seeking -- sliding mode -- chattering -- steady-state oscillation; Automatic control -- Periodicals; Electronic journals; 629.8
• DOI: 10.1080/00207179.2019.1597277
• Languages: English
• ISSNs: 0020-7179

Abstract

Abstract : In this paper, a novel sliding mode extremum seeking control (SMESC) scheme is proposed to improve the performance of the classic SMESC. In this scheme, the twisting sliding mode is employed to alleviate the chattering at the sliding stage and a gradient-based parameter adjusting strategy is designed to eliminate the oscillation during steady-state stage. The convergence and stability of this scheme are proved in a rigorous way. Moreover, the principle of parameters selection is presented to facilitate the application of this scheme. Finally, the application in proton exchange membrane fuel cell system shows the effectiveness and advantages of the scheme.