期刊
ISA TRANSACTIONS
卷 53, 期 1, 页码 2-9出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.isatra.2013.08.001
关键词
Adaptive stabilization; Dynamic gain scaling; Output feedback; Nonlinear systems
资金
- National Natural Science Foundation of China [61104068]
- Natural Science Foundation of Jiangsu Province [BK2010200]
- Research Fund for the Doctoral Program of Higher Education of China [20090092120027]
- China Postdoctoral Science Foundation [2012M511176]
- Fundamental Research Funds for the Central Universities
This paper addresses the problem of global output feedback control for a class of nonlinear time-delay systems. The nonlinearities are dominated by a triangular form satisfying linear growth condition in the unmeasurable states with an unknown growth rate. With a change of coordinates, a linear-like controller is constructed, which avoids the repeated derivatives of the nonlinearities depending on the observer states and the dynamic gain in backstepping approach and therefore, simplifies the design procedure. Using the idea of universal control, we explicitly construct a universal-type adaptive output feedback controller which globally regulates all the states of the nonlinear time-delay systems. (C) 2013 ISA. Published by Elsevier Ltd. All rights reserved.
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