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RSS FeedsSensors, Vol. 18, Pages 1929: Design of Event-Triggered Fault-Tolerant Control for Stochastic Systems with Time-Delays (Sensors)

 
 

14 june 2018 10:07:01

 
Sensors, Vol. 18, Pages 1929: Design of Event-Triggered Fault-Tolerant Control for Stochastic Systems with Time-Delays (Sensors)
 




This paper proposes two novel, event-triggered fault-tolerant control strategies for a class of stochastic systems with state delays. The plant is disturbed by a Gaussian process, actuator faults, and unknown disturbances. First, a special case about fault signals that are coupled to the unknown disturbances is discussed, and then a fault-tolerant strategy is designed based on an event condition on system states. Subsequently, a send-on-delta transmission framework is established to deal with the problem of fault-tolerant control strategy against fault signals separated from the external disturbances. Two criteria are provided to design feedback controllers in order to guarantee that the systems are exponentially mean-square stable, and the corresponding H∞-norm disturbance attenuation levels are achieved. Two theorems were obtained by synthesizing the feedback control gains and the desired event conditions in terms of linear matrix inequalities (LMIs). Finally, two numerical examples are provided to illustrate the effectiveness of the proposed theoretical results.


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62 viewsCategory: Chemistry, Physics
 
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