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In this paper, a cross entropy simulation based method is used to determine the degradation of the probability of a performance metric of a robust controller exceeding its desired performance threshold level, as it degrades at regular intervals. The proposed method verified the worst case performance levels, that were determined using various existing optimisation based methods, by associating a very...
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...
This paper presents preliminary results of a robust linear parameter varying (LPV)-based sliding mode voltage controller for a parallel-plate electro-static microactuator. The controller design aims to extend the travelling range of the microactuator plates beyond the, so-called, ‘pull-in’ condition, thus taking advantage of an increased range of operation. The designed controller is successful in...
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