Time-varying controller design for input saturated systems. Issue 15 (October 2020)

• Record Type: Journal Article
• Authors: Wang, Qian; Zhang, Zhiqiang; Zhang, Kai; Lin, Qingxia
• Is Part Of: Journal of the Franklin Institute. Volume 357:Issue 15(2020)
• Page Start: 10453
• Page End: 10471
• Publication Date: 2020-10
• Subjects: Science -- Periodicals; Technology -- Periodicals; Patents -- United States -- Periodicals; 505
• DOI: 10.1016/j.jfranklin.2020.08.025
• Languages: English
• ISSNs: 0016-0032

Abstract

Abstract: This paper presents a time-varying controller design for input saturated system whose poles are all in the closed left-half plane by introducing a time-varying parameter. The time-varying state feedback controller and the observer-based time-varying output feedback controller are both designed based on the parametric Riccati equation and parametric Lyapunov equation to ensure the exponential stability of the closed-loop system. The dynamic performance improvement of the closed-loop system is obtained by the designed controllers. The effectiveness and the usefulness of the proposed method are illustrated by the numerical simulation.