Výsledky vyhledávání - "Petar V. Kokotovic"

OBSERVER-BASED STABILIZATION OF SYSTEMS WITH MONOTONIC NONLINEARITIES

Publikováno v: Asian Journal of Control. 1:42-48

We design an observer-based control law for a class of systems that include monotonic nonlinearities of the unmeasured states. Our observer results in nonlinear error dynamics which can be represented as the feedback interconnection of a linear syste

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9bba723dbec8e88e315366c9ffeb73e
https://doi.org/10.1111/j.1934-6093.1999.tb00005.x

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Performance limitations in reference tracking and path following for nonlinear systems

Autor: A. Pedro Aguiar, Petar V. Kokotovic, Joao P. Hespanha

Publikováno v: Automatica. 44:598-610

We investigate limits of performance in reference tracking and path following and highlight an essential difference between them. For a class of nonlinear systems, we show that in reference tracking, the smallest achievable L"2 norm of the tracking e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50347262e8df4d6c4117e46a82577576
https://doi.org/10.1016/j.automatica.2007.06.030

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Path-Following for Nonlinear Systems With Unstable Zero Dynamics

Autor: Dragan Nesic, Petar V. Kokotovic, D.B. Dacic

Publikováno v: IEEE Transactions on Automatic Control. 52:481-487

In the path-following problem formulated in this note, it is required that the error between the system output and the desired geometric path eventually be less than any prespecified constant. If in a nonlinear multiple-input-multiple-output (MIMO) s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57813ef176ccd5ff05720910d2ce118d
https://doi.org/10.1109/tac.2006.890484

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Control Effort Reduction in Tracking Feedback Laws

Autor: D.B. Dacic, M.V. Subbotin, Petar V. Kokotovic

Publikováno v: IEEE Transactions on Automatic Control. 51:1831-1837

We develop a path-following algorithm for redesign of tracking feedback laws to reduce the control effort. Our algorithm provides a tradeoff between the control effort and the dynamic performance along the path, while maintaining the desired converge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfdcbc7d05aa4a403ccea73a82c2d5eb
https://doi.org/10.1109/tac.2006.883064

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A scaled feedback stabilization of power integrator triangular systems

Autor: D.B. Dacic, Petar V. Kokotovic

Publikováno v: Systems & Control Letters. 54:645-653

Using unbounded time-varying scaling of the states we design C/sup 1/ feedback laws for power integrator triangular systems which globally asymptotically stabilize (GAS) the origin despite the uncontrollability of the linearization. With bounded scal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::231b130d49a988741b027ec67c241561
https://doi.org/10.1016/j.sysconle.2004.11.004

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Path-following for nonminimum phase systems removes performance limitations

Autor: Joao P. Hespanha, A.P. Aguiar, Petar V. Kokotovic

Publikováno v: Aguiar, A P; Hespanha, Joao P; & Kokotovic, P V. (2005). Path-following for nonminimum phase systems removes performance limitations. IEEE Transactions on Automatic Control, 50(2), 234-239. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/3q09s48f

We highlight an essential difference between path-following and reference-tracking for nonminimum phase systems. It is well known that in the reference-tracking, for nonminimum phase systems, there exists a fundamental performance limitation in terms

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47408689fdd873dd56099de6db2ce449
https://doi.org/10.1109/tac.2004.841924

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Adaptive maneuvering, with experiments, for a model ship in a marine control laboratory

Autor: Thor I. Fossen, Roger Skjetne, Petar V. Kokotovic

Publikováno v: Automatica. 41:289-298

The maneuvering problem involves two tasks. The first, called the geometric task, is to force the system output to converge to a desired path continuously parametrized by a scalar @q. The second task, called the dynamic task, is to satisfy a desired

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https://doi.org/10.1016/j.automatica.2004.10.006

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PATH-FOLLOWING FOR LINEAR SYSTEMS WITH UNSTABLE ZERO DYNAMICS

Autor: Dragan B. Dačić, Petar V. Kokotovic

Publikováno v: IFAC Proceedings Volumes. 38:284-289

A constructive solution to the path-following problem for MIMO linear systems with unstable zero dynamics is developed. While the original control variable steers the system output along the path, the path parameter @q is used as an additional contro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a820d5ac4e41edabfbbcd54feafc28ba
https://doi.org/10.3182/20050703-6-cz-1902.00618

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Nonlinear Control Experiments on an Axial Flow Compressor

Autor: Shengfang Liao, Petar V. Kokotovic, D. Fontaine, James D. Paduano

Publikováno v: IEEE Transactions on Control Systems Technology. 12:683-693

This paper describes the design of and experiments with a nonlinear feedback controller implemented on an industrial type axial compressor. Two-dimensional (2-D) actuation with a ring of bleed valves was used to prevent surge and stall instabilities.

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https://doi.org/10.1109/tcst.2004.826967

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