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- Title
Boundary Control for a Vibrating String System with Bounded Input.
- Authors
Zhao, Zhijia; Liu, Yu; Luo, Fei
- Abstract
Abstract: In this study, we deal with the control problem of a vibrating string system under the condition of restricted input and external disturbance. The major objectives are the development of a boundary vibration control scheme for globally stabilizing the string system and simultaneously for compensating the effect of the input saturation, and the design of a disturbance observer for tracking the external disturbance. To this end, a boundary control is proposed based on smooth hyperbolic function to suppress the vibration and eliminate the input restriction effect, and a disturbance observer is employed to mitigate the external disturbance. The asymptotic stability of the controlled system is demonstrated employing the extended LaSalle's invariance principle. In order to verify the control performance of the proposed control, simulation results are presented by the choice of proper control design parameters.
- Subjects
BOUNDARY value problems; VIBRATION (Mechanics); MATHEMATICAL bounds; HYPERBOLIC functions; COMPUTER simulation
- Publication
Asian Journal of Control, 2018, Vol 20, Issue 1, p323
- ISSN
1561-8625
- Publication type
Article
- DOI
10.1002/asjc.1555