Results 251 to 260 of about 38,638 (306)

Control of linear systems with saturating actuators

Proceedings of 1995 American Control Conference - ACC'95, 1996
The paper deals with (linear) systems of the form \(\dot x = Ax + B \sigma (u + g(x,t))\), \(y = Cx\), with \(x,u\) and \(y\) the state-, input- and output vector; \(\sigma\) is a saturation function and \(g\) represents the uncertainties/disturbances in the system.
Ali Saberi, Zongli Lin, Andrew R. Teel
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Command Shapers for Systems with Actuator Saturation

2007 American Control Conference, 2007
Command shapers are used to create inputs that move flexible systems without residual vibration. Originally developed for linear systems, command shapers use superposition of the inputs to cancel vibration and control the system response. Nonlinearities in the system degrade the performance of traditional command shapers.
Michael J. Robertson, Richard Scott Erwin   +1 more
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Sliding surface design with saturated actuator

2012 12th International Workshop on Variable Structure Systems, 2012
A class of nonlinear uncertain systems with saturated actuator is considered in this paper. Sliding surface matrix is obtained using parameterized Riccatti equation. The proposed surface ensures that control limits are respected in a region of state space. This region can be made sufficiently large by choosing appropriate value of design parameters.
Deepak Fulwani, Bijnan Bandyopadhyay
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Anti-windup in anticipation of actuator saturation

49th IEEE Conference on Decision and Control (CDC), 2010
This paper considers control systems in the presence of actuator saturation. A traditional approach to alleviating the adverse effect of actuator saturation is to design an anti-windup mechanism and activate it as soon as the saturation occurs. A recent innovation is to delay the activation of the anti-windup mechanism until the degree of saturation ...
Xiongjun Wu, Zongli Lin
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On Variable Structure Actuator Saturation Compensators

HKIE Transactions, 1997
Most existing actuator saturation compensators are fixed structure with constant parameters. As the linear system now becomes nonlinear when the actuator saturates, using only one linear compensator may not be adequate to produce acceptable response.
Hui, K, Chan, CW
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Actuator saturation avoidance in overactuated systems

2004 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (IEEE Cat. No.04CH37566), 2005
The presence of redundant actuators in dynamic systems increases system efficiency and capability. An example of this increased capability is avoidance of actuator saturation at critical moments. Defining a system maximum efficiency function, this paper transforms the problem of avoiding actuator saturation into an optimization problem with the ...
Mehrdad Naghshineh, Mehdi Keshmiri
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An Uncertainty Model for Saturated Actuators

1989 American Control Conference, 1989
An uncertainty model for saturated actuators is reported in this paper. The model includes linear as well as quasi-linear elements where the quasi-linear elements are used to model the effects of rate and deflection limiting within the actuator. Since the actuator uncertainty model is quasi-linear, the magnitudes of the signals within the actuator ...
Mark R. Anderson, David K. Schmidt
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Control of quadrotors with actuator saturations

The 27th Chinese Control and Decision Conference (2015 CCDC), 2015
Actuator saturation is a common problem in the actual system of quadrotors. In this paper, we study the control method of quadrotors with actuator saturations, and we propose a static rescaling method. Firstly, the system control of quadrotors is divided into the attitude and position control.
Wu Yang, Cao Ke-cai, Lv Mengjiao
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System Types in Feedback Control With Saturating Actuators

IEEE Transactions on Automatic Control, 2004
This paper extends the classical notation of system type to feedback control with saturating actuators. For step, ramp, and parabolic inputs, it defines the so called trackable domains and evaluates steady state errors. It shows that, unlike the linear case, the role of the poles at the origin of the plant and the controller are different and, on this ...
Yongsoon Eun, Pierre T. Kabamba, Semyon M. Meerkov   +2 more
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Manual control with saturating actuators

1997 European Control Conference (ECC), 1997
The objectives of this paper are to concisely state the tracking control problem with actuator saturation, briefly review the current literature, and formulate the problem in a manual (flight) control context. The complexity of tracking control with saturation is demonstrated via a "simple" example.
R. B. Miller, M. Pachter
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