Abstract
This brief concentrates on controller design for flexible string systems subjected to external disturbances, input constraints, and state constraints. The hyperbolic barrier Lyapunov function and auxiliary systems are adopted to develop boundary constrained control with a disturbance observer for restraining vibrations, eliminating input and state constraints, and tackling external disturbances. The suggested control can ensure the input and state constraints and achieve asymptotic stability in the controlled system. With appropriate design parameters, the simulation results obtained verify the control performance.
| Original language | English |
|---|---|
| Article number | 8651373 |
| Pages (from-to) | 112-116 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Circuits and Systems II: Express Briefs |
| Volume | 67 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2020 Jan |
Bibliographical note
Funding Information:Manuscript received December 14, 2018; revised January 31, 2019; accepted February 19, 2019. Date of publication February 25, 2019; date of current version December 26, 2019. This work was supported in part by the National Natural Science Foundation of China under Grant 61803109, in part by the Innovative School Project of Education Department of Guangdong under Grant 2017KQNCX153, and in part by the National Research Foundation of Korea through the Ministry of Science, ICT and Future Planning under Grant NRF-2017R1A1A1A05001325. This brief was recommended by Associate Editor T. Fernando. (Corresponding authors: Zhijia Zhao; Choon Ki Ahn.) Z. Liu is with the School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China (e-mail: [email protected]).
Publisher Copyright:
© 2004-2012 IEEE.
Keywords
- Boundary control
- disturbance observer
- input constraints
- state constraints
- vibration control
ASJC Scopus subject areas
- Electrical and Electronic Engineering