Multiple-dynamic-scaling output-feedback control for uncertain strict-feedback-like systems with input unmodeled dynamics

P. Krishnamurthy, Farshad Khorrami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A general class of uncertain strict-feedback-like nonlinear systems with dynamic input nonlinearities is considered. The addressed nonlinear system structure can be viewed as a nominal system of strict-feedback-like form with its input signal given by an uncertain nonlinear function coupled with an uncertain nonlinear time-varying input unmodeled dynamics. The proposed controller is based on a scaling-based redesign of the dual dynamic high-gain scaling based output-feedback control design for strict-feedback-like systems. The scaling-based redesign introduces a dynamic state extension and an additional dynamic scaling based on a singular-perturbation-like structure to address the nonlinear uncertain dynamic input perturbation. The proposed approach provides a globally stabilizing output-feedback control design that is robust to the uncertain input unmodeled dynamics and functional and parameteric uncertainties allowed in the system structure.

Original languageEnglish (US)
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2685-2690
Number of pages6
Volume2015-July
ISBN (Print)9781479986842
DOIs
StatePublished - Jul 28 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: Jul 1 2015Jul 3 2015

Other

Other2015 American Control Conference, ACC 2015
CountryUnited States
CityChicago
Period7/1/157/3/15

Fingerprint

Feedback control
Feedback
Nonlinear systems
Control nonlinearities
Controllers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Krishnamurthy, P., & Khorrami, F. (2015). Multiple-dynamic-scaling output-feedback control for uncertain strict-feedback-like systems with input unmodeled dynamics. In ACC 2015 - 2015 American Control Conference (Vol. 2015-July, pp. 2685-2690). [7171140] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ACC.2015.7171140

Multiple-dynamic-scaling output-feedback control for uncertain strict-feedback-like systems with input unmodeled dynamics. / Krishnamurthy, P.; Khorrami, Farshad.

ACC 2015 - 2015 American Control Conference. Vol. 2015-July Institute of Electrical and Electronics Engineers Inc., 2015. p. 2685-2690 7171140.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Krishnamurthy, P & Khorrami, F 2015, Multiple-dynamic-scaling output-feedback control for uncertain strict-feedback-like systems with input unmodeled dynamics. in ACC 2015 - 2015 American Control Conference. vol. 2015-July, 7171140, Institute of Electrical and Electronics Engineers Inc., pp. 2685-2690, 2015 American Control Conference, ACC 2015, Chicago, United States, 7/1/15. https://doi.org/10.1109/ACC.2015.7171140
Krishnamurthy P, Khorrami F. Multiple-dynamic-scaling output-feedback control for uncertain strict-feedback-like systems with input unmodeled dynamics. In ACC 2015 - 2015 American Control Conference. Vol. 2015-July. Institute of Electrical and Electronics Engineers Inc. 2015. p. 2685-2690. 7171140 https://doi.org/10.1109/ACC.2015.7171140
Krishnamurthy, P. ; Khorrami, Farshad. / Multiple-dynamic-scaling output-feedback control for uncertain strict-feedback-like systems with input unmodeled dynamics. ACC 2015 - 2015 American Control Conference. Vol. 2015-July Institute of Electrical and Electronics Engineers Inc., 2015. pp. 2685-2690
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