Semi-globally practical finite-time stability for uncertain nonlinear systems based on dynamic surface control. Issue 2 (1st February 2021)

• Record Type: Journal Article
• Authors: Liu, Yang; Liu, Xiaoping; Jing, Yuanwei; Zhang, Ziye
• Is Part Of: International journal of control. Volume 94:Issue 2(2021)
• Page Start: 476
• Page End: 485
• Publication Date: 2021-02-01
• Subjects: Semi-globally practical finite-time stability -- dynamic surface control -- adding a power integrator -- backstepping; Automatic control -- Periodicals; Electronic journals; 629.8
• DOI: 10.1080/00207179.2019.1598579
• Languages: English
• ISSNs: 0020-7179

Abstract

ABSTRACT: In this paper, a semi-globally practical finite-time stability (SGPFS) problem is investigated for a class of uncertain nonlinear systems. Two well-known control techniques, dynamic surface control (DSC) and adding a power integrator (AAPI), are combined to obtain the semi-globally practical finite-time controller. With the aid of DSC, a less-complex finite-time control algorithm is presented, which makes the closed-loop system SGPF-stable. Two examples are provided to explain the feasibility and effectiveness of the proposed design technique.