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The following topics are dealt with: abnormal events management; sliding mode methods; fault-tolerant control systems; intelligent monitoring; sensor network scheduling; fault detection; large-scale distributed systems; and space domain.
In this paper, integral sliding mode control ideas are incorporated with control allocation, to design fault tolerant controllers for longitudinal and lateral control of a large transport aircraft. The proposed scheme has the capability to retain nominal performance even in the face of total failure of certain actuators, provided there is enough redundancy in the system. During faults or failures,...
This paper discusses the problem of designing the sliding-mode-based sensor faults estimation in a general structure suitable on the actuator as well as sensor faults detection and estimation. The problem addressed is indicated as an unified algebraic approach giving sufficient conditions of solution. Lyapunov inequality implying from two linear matrix inequalities are outlined to posses a stabile...
This paper is aimed at robust control of a Permanent magnet DC motor based actuator used in the control of the inlet swirl valve of a diesel engine. The actuator has uncertainty issues related to parameter identification and variation, and load disturbance. These issues lead to faults in controllers, resulting in poor performance and failure. The actuator has been modeled taking parameter uncertainties...
Sliding mode methods have been historically studied because of their strong robustness properties to a certain class of uncertainty. This is achieved by employing nonlinear control/injection signals to force the system trajectories to attain in finite time a motion along a surface in the state-space. This paper will consider how these ideas can be exploited for fault detection (specifically fault...
In this paper the design of sliding mode observers for gyro and thruster fault detection and isolation in the Mars Express satellite is presented. The results are part of a project with the goal of examining the potential applicability of the sliding mode observer technique to on-board satellite deployment. A Monte Carlo campaign has been performed to assess the performance and robustness of the sliding...
In this paper, the sliding mode approach is used to control of a quadrotor unmanned aerial vehicle (UAV) in the presence of external disturbance and actuator fault. Fault detection unit can detect the actuator fault using a state estimator. Then it reconfigures the structure of controller such that some control performance is achieved. The proposed control structure has the advantage of disturbance...
Robust fault tolerant attitude stabilization control problem for flexible spacecraft is investigated in this paper. First, a robust controller based on sliding mode control scheme is derived, in which function approximation technique is employed to represent system uncertainties. It is shown that the roll angle, pitch angle and yaw angle can be globally asymptotically stabilized in the presence of...
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