Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.sysconle.2006.07.006
Title: Improving transient performance in tracking control for linear multivariable discrete-time systems with input saturation
Authors: He, Y.
Chen, B.M. 
Wu, C.
Keywords: Actuator saturation
Discrete-time systems
Nonlinear control
Tracking control
Transient response
Issue Date: Jan-2007
Citation: He, Y., Chen, B.M., Wu, C. (2007-01). Improving transient performance in tracking control for linear multivariable discrete-time systems with input saturation. Systems and Control Letters 56 (1) : 25-33. ScholarBank@NUS Repository. https://doi.org/10.1016/j.sysconle.2006.07.006
Abstract: In this paper, we present a composite nonlinear feedback (CNF) control technique for linear discrete-time multivariable systems with actuator saturation. The CNF control law serves to improve the transient performance of the closed-loop system by adding an additional nonlinear feedback. The linear feedback can be designed to yield a quick response at the initial stage, then the nonlinear feedback is introduced to smooth out overshoots when the system output approaches the target reference. As such, the resulting closed-loop system typically has very fast transient response and small overshoots. The goal of this work is to complete the theory for general discrete-time systems. The technique is applied to a magnetic-tape-drive servo system design and yields a huge improvement in settling time compared to that of a purely linear controller. © 2006 Elsevier B.V. All rights reserved.
Source Title: Systems and Control Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/56296
ISSN: 01676911
DOI: 10.1016/j.sysconle.2006.07.006
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