期刊
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
卷 67, 期 1, 页码 112-116出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCSII.2019.2901283
关键词
Vibrations; Circuits and systems; Disturbance observers; Stability analysis; Closed loop systems; Strain; Boundary control; input constraints; state constraints; disturbance observer; vibration control
资金
- National Natural Science Foundation of China [61803109]
- Innovative School Project of Education Department of Guangdong [2017KQNCX153]
- National Research Foundation of Korea through the Ministry of Science, ICT and Future Planning [NRF-2017R1A1A1A05001325]
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.
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