Abstract
In this paper, actuator criticality analysis is integrated in the design of active fault-tolerant control systems. The main objective consists in the fault-tolerant controller synthesis which guarantees a highest overall system reliability while still maintaining immediate stability and tracking performance of reconfigured system. To achieve this task, an actuator criticality indicator is defined and incorporated in the fault-tolerant controller design. Such metric is implemented to manage the control inputs in order to improve the system dependability both in normal operation and in the presence of faults. Actuator criticality analysis of systems modeled by a state space representation is proposed. A design of the fault-tolerant compensation controller is reformulated as a linear matrix inequality problem.
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