Passive Actuators' Fault-Tolerant Control for Affine Nonlinear Systems

Benosman, Mouhacine; Lum, Kai‐Yew

doi:10.1109/tcst.2008.2009641

Cited by 213 publications

(97 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worthy to note that the flexible spacecraft attitude dynamics (6) and (7) describe the actuator fault-free condition. Consider the situation where the actuators experience bias fault or a partial loss of actuator effectiveness, and they can be mathematically expressed as 30,52…”

Section: Spacecraft Dynamicsmentioning

confidence: 99%

Continuous robust fault‐tolerant control and vibration suppression for flexible spacecraft without angular velocity

Zhang

Zong

Tian

et al. 2019

Intl J Robust & Nonlinear

View full text Add to dashboard Cite

Summary The fault‐tolerant control and vibration suppression for flexible spacecraft without angular velocity measurement are investigated. External disturbances, actuator faults, unknown angular velocity, and flexible vibration are addressed simultaneously. Firstly, a model‐free adaptive supertwisting state observer and an angular velocity calculation algorithm in one step are developed by using attitude information only, which can estimate the angular velocity in finite time. Then, on the basis of angular velocity estimation, a novel continuous multivariable integral sliding mode (CMISM) is proposed for the first time, which is a combination of continuous nominal controller and a modified multivariable twisting controller to reject disturbances and faults. The CMISM can stabilize attitudes in finite time and attenuate chattering effectively. Furthermore, the input shaping technique is developed to achieve effective vibration suppression of the flexible appendages. Finally, the efficiency of the proposed method is illustrated by numerical simulations.

show abstract

Section: Spacecraft Dynamicsmentioning

confidence: 99%

Continuous robust fault‐tolerant control and vibration suppression for flexible spacecraft without angular velocity

Zhang

Zong

Tian

et al. 2019

Intl J Robust & Nonlinear

View full text Add to dashboard Cite

show abstract

“…We use now the technique of Lyapunov reconstruction from nonlinear robust control, e.g. [11], to construct the third term of the controller (9). We compute the derivative of V along the full dynamics (8), where we…”

Section: )mentioning

confidence: 99%

Multi-parametric extremum seeking-based learning control for electromagnetic actuators

Benosman

Atinc

2013

2013 American Control Conference

View full text Add to dashboard Cite

We study in this paper the problem of adaptive robust control of electromagnetic actuators. We first design a nonlinear controller that stabilizes locally the error dynamics. Next, we complement this nonlinear controller with a multiparametric extremum seeking control to tune the feedback gains of the nonlinear controller. We use numerical tests to demonstrate the performance of this controller in dealing with model uncertainties.

show abstract

“…1). As opposed to passive fault-tolerant control approaches [2], [3], in reconfigurable control the controller is changed to match the faulty plant once the fault has been isolated [4]. For switched systems, adaptive schemes [5] and output feedback controller redesign have been developed (see for example [6]).…”

Section: Imentioning

confidence: 99%

Reconfigurable control of PWA systems with actuator and sensor faults: Stability

Richter

Heemels

Wouw

et al. 2008

2008 47th IEEE Conference on Decision and Control

View full text Add to dashboard Cite

A new approach to the reconfigurable control of piecewise affine (PWA) systems after actuator and sensor faults is presented. The approach extends the concept of virtual actuators and virtual sensors from linear to PWA systems on the basis of the fault-hiding principle. The weak fault-hiding goal is introduced as a relaxation of the asymptotic fault-hiding goal. Sufficient linear matrix inequality conditions for the existence of input-to-state stabilizing virtual actuators and sensors are given that lead to a tractable computational algorithm. The stability of the reconfigured closed-loop system is verified. The approach is evaluated using a system of interconnected tanks. I. IIn this paper, a new reconfigurable control strategy for piecewise affine (PWA) systems is presented. Reconfigurable control responds to severe component failures that break the control loop by restructuring the control loop on-line [1]. Control reconfiguration is an active fault-tolerant control methodology that uses the estimatef of the fault f , which is obtained from a diagnosis component (FDI) (Fig. 1). As opposed to passive fault-tolerant control approaches [2], [3], in reconfigurable control the controller is changed to match the faulty plant once the fault has been isolated [4]. For switched systems, adaptive schemes [5] and output feedback controller redesign have been developed (see for example [6]). For PWA systems, model-predictive control has been used for fault-tolerant control [7]. y d f fû r Controller Plant FDI Control reconfiguration Execution -Supervision Fig. 1. Active fault-tolerant control scheme.This approach is based on the idea of keeping the nominal controller in the loop by inserting a reconfiguration block between the faulty plant and the nominal controller when a fault occurs. The reconfiguration block is chosen to hide the fault from the controller and, at the same time, to ensure that the faulty plant controlled by the nominal controller together with the reconfiguration block remains globally input-to-state stable. The fault-hiding approach was previously developed for linear and Hammerstein systems and lead to virtual actuators for the actuator fault case and to virtual sensors for the sensor fault case (see [8]-[12]); until now, the faulthiding approach was not available for PWA systems. The extension from linear to PWA systems is hard due to the following complexity property: For continuous PWA systems with more than 2 states, the problem of deciding whether or not all system trajectories are bounded is undecidable [13].The motivation for studying PWA systems is at least twofold. Firstly, PWA systems are receiving wide attention due to the fact that the PWA framework [14] provides a way to describe dynamic systems exhibiting switching between a multitude of linear dynamic regimes, see also [15]. Such switching can be due to piecewiselinear characteristics such as dead-zone, saturation, hysteresis or relays. Secondly, PWA systems may result from piecewise linear approximations of complex nonlinea...

show abstract

Passive Actuators' Fault-Tolerant Control for Affine Nonlinear Systems

Cited by 213 publications

References 16 publications

Continuous robust fault‐tolerant control and vibration suppression for flexible spacecraft without angular velocity

Continuous robust fault‐tolerant control and vibration suppression for flexible spacecraft without angular velocity

Multi-parametric extremum seeking-based learning control for electromagnetic actuators

Reconfigurable control of PWA systems with actuator and sensor faults: Stability

Contact Info

Product

Resources

About