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The paper considers so-called Integral sliding modes and how they can be employed in the context of fault tolerant control. One advantage is that a sliding motion can be achieved at the outset and hence there is no reaching phase. Two distinct classes of problem are considered: in the first a fault tolerant ISM controller is designed for a class of faults in an over-actuated linear system; in the...
In this brief paper, a novel fault-tolerant control allocation scheme is proposed that has the capability to maintain closed-loop nominal performance in the case of faults/failures by effectively managing the actuator redundancy, and without reconfiguring the underlying control law. The proposed scheme relies on an a posteri approach, building on an existing state feedback controller designed using...
This paper presents a new sensor fault tolerant control (FTC) scheme inspired by a recently developed LPV based sliding mode observer. The robustly reconstructed sensor faults from the observer are used to ‘correct’ the corrupted measurements before they are used by the existing controller. The modular structure of the sensor FTC scheme allows it to be retrofitted to the existing closed loop system...
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