Second-order sliding mode controller design subject to mismatched term. (March 2017)

• Record Type: Journal Article
• Authors: Ding, Shihong; Li, Shihua
• Is Part Of: Automatica. Volume 77(2017)
• Page Start: 388
• Page End: 392
• Publication Date: 2017-03
• Subjects: Finite time stability -- Second-order sliding mode -- Adding a power integrator; Automatic control -- Periodicals; Automation -- Periodicals; 629.805
• DOI: 10.1016/j.automatica.2016.07.038
• Languages: English
• ISSNs: 0005-1098

Abstract

Abstract: This communique proposes a novel second-order sliding mode (SOSM) control method to handle sliding mode dynamics with mismatched term, so as to reduce the terms in the control channel. Meanwhile, it is shown that the proposed control approach can be used to design SOSM controllers under disturbances bounded by positive functions rather than conventional constant upper bounds. The finite-time stability of the sliding variables has been shown by using finite-time Lyapunov theory. The validity of the proposed approach is verified by controlling a Buck converter.