Proceedings of the American Control Conference

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Adaptive backstepping control design for MIMO plants using factorization
Proceedings of the American Control Conference - Tập 6 - Trang 4601-4606 vol.6 - 2002
R.R. Costa, L. Hsu, A.K. Imai, G. Tao
The generalization of the adaptive backstepping control for linear MIMO plants made a restrictive assumption about the high frequency gain B/sub m/: a matrix S/sub m/ must be known such that B/sub m/S/sub m/=(B/sub m/S/sub m/)/sup T/>0. In this paper, using the SDU factorization of B/sub m/, where S is symmetric positive definite, D is diagonal, and U is unity upper triangular, we eliminate that r...... hiện toàn bộ
#Programmable control #Adaptive control #Backstepping #Control design #MIMO #Frequency #Symmetric matrices #Mechanical engineering #Linear systems #Control systems
Motion control of precision positioning systems using adaptive compensation
Proceedings of the American Control Conference - Tập 6 - Trang 4589-4594 vol.6 - 2002
Bong Keun Kim, Wan Kyun Chung
In this paper, an adaptive motion control method is proposed for high-accuracy positioning systems with nonlinear friction and parameter uncertainties. Based on the control input redesign framework for disturbance compensation, a unified control structure of an adaptive compensator and feedback motion controller is designed. Adaptive control which can reduce the uncertainties of system parameters ...... hiện toàn bộ
#Motion control #Adaptive systems #Programmable control #Adaptive control #Feedback #Error correction #Friction #Uncertain systems #Uncertainty #Stability analysis
WPT-SVMs based approach for fault detection of valves in reciprocating pumps
Proceedings of the American Control Conference - Tập 6 - Trang 4566-4570 vol.6 - 2002
Fujun He, Wengang Shi
This paper presents a novel approach for fault detection of valves in three-cylinder reciprocating pumps. Since the vibration signals collected from pumps apparently show the existence of non-stationary signals and the interference of neighboring valves, the wavelet packet transform (WPT) is introduced as a preprocessing means of extracting time-frequency information from vibration signals to obta...... hiện toàn bộ
#Fault detection #Valves #Fault diagnosis #Pumps #Interference #Wavelet packets #Wavelet transforms #Data mining #Time frequency analysis #Support vector machines
Sliding mode observer based fault detection and isolation in descriptor systems
Proceedings of the American Control Conference - Tập 6 - Trang 4543-4548 vol.6 - 2002
T.K. Yeu, S. Kawaji
This paper considers the application of sliding mode observer to the problem of fault detection and isolation for descriptor system with input fault and measurement fault. In detecting and isolating the faults, we consider two cases where there exists only an input fault, and a measurement fault without the input fault in the system respectively. For each case, we propose an approach for designing...... hiện toàn bộ
#Fault detection #Stability #Observers #Lyapunov method #Hardware #Redundancy #Isolation technology #Automatic control #Voting #Costs
Hybrid state plant model constraints for design of control systems for discrete part manufacture resource distribution
Proceedings of the American Control Conference - Tập 6 - Trang 4449-4454 vol.6 - 2002
H. Holm
Material- and product transformations of discrete part manufacture are performed through sequences of continuous processes. The sequences of the transformations are in most humanly operated manufacture today determined partly by conscious planning partly by non conscious planning. Basis of the planning is deterministic transformation durations. This paper establishes a rational system framework up...... hiện toàn bộ
#Control system synthesis #Virtual manufacturing #Robotic assembly #Transportation #Manufacturing systems #Resource management #Robots #Robotics and automation #Stochastic processes #Bars
Constrained controllability of semilinear systems
Proceedings of the American Control Conference - Tập 6 - Trang 4395-4400 vol.6 - 2002
J. Klamka
In the paper infinite-dimensional dynamical control systems described by semilinear abstract differential equations are considered. Using a generalized open mapping theorem, sufficient conditions for constrained exact local controllability are formulated and proved. It is generally assumed that the values of admissible controls are in a convex and closed cone with vertex at zero. Constrained exact...... hiện toàn bộ
#Controllability #Control systems #Integral equations #Nonlinear equations #Differential equations
Parametrically robust control-integrated design of nonlinear systems
Proceedings of the American Control Conference - Tập 6 - Trang 4321-4326 vol.6 - 2002
M. Monnigmann, W. Marquardt
An approach is presented which allows us to incorporate constraints on the system dynamics into the optimization based design of nonlinear systems. In this approach, boundaries in the parameter space of the nonlinear system are taken into account, at which desired dynamics characteristics of the system are lost. These boundaries can be defined, for example, by a critical value of the real part of ...... hiện toàn bộ
#Robust control #Nonlinear control systems #Control systems #Nonlinear systems #Nonlinear dynamical systems #Design optimization #Eigenvalues and eigenfunctions #Constraint optimization #Stress #Robustness
Convex methods in actuator placement
Proceedings of the American Control Conference - Tập 6 - Trang 4309-4314 vol.6 - 2002
D.J. Chmielewski, Jui-Kun Peng, A.M. Manthanwar
A new formulation of the actuator placement problem is presented. This formulation considers capital cost in the objective function and highlights the importance of magnitude limits on both input and output signals through variance bounding constraints on each. Thus, the proposed optimization problem is aimed at finding the set of minimum cost actuator arrays such that there exists a linear feedba...... hiện toàn bộ
#Chemical technology #Cost function #Feedback #Automatic control #Chemical engineering #Hydraulic actuators #Design methodology #Inductors #Distributed parameter systems #Instruments
Index of Authors, Chairpersons, and Organizers
Proceedings of the American Control Conference - Tập 4 - Trang 3407-3419 - 2002
Presents an index of the authors whose papers are published in the conference.
Disturbance rejection for nonlinear systems
Proceedings of the American Control Conference - Tập 5 - Trang 3484-3489 vol.5 - 2002
Zongxuan Sun, Tsu-Chin Tsao
Tracking or rejection of unknown exogenous signals with known generating dynamics is of major concern in feedback control design. Linear feedback control based on the internal model principle achieves asymptotic performance for linear systems with linear exogenous signal dynamics. This paper presents a control design based on the internal model principle to track or reject nonlinear exogenous sign...... hiện toàn bộ
#Nonlinear systems #Aerodynamics #Linear systems #Feedback control #Sufficient conditions #Control design #Regulators #Nonlinear equations #Partial differential equations #Servomechanisms
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