Fuzzy-controlled reconfigurationof fault-tolerant control systems
In the article is observed the fuzzy fault-tolerant control conception based on fuzzy-controlled reconfiguration controller, providing normal operation to ensure their operability in the case of failures. Is given the principal concept, is observed the fuzzy fault-tolerant control systems generalized structure. In general terms is given the procedure of design. Is observed the structure of fault-tolerant control system based on the model in state space identification. The described generalized design procedure is demonstrated in fault-tolerant control system model development example. The proposed fuzzy fault-tolerant control system design concept is flexible and allows combining different techniques to address the problem of diagnostics and fault-tolerant control both, well known and the new ones. As evidence is given an example of described procedures for synthesis of fuzzy fault-tolerant control systems modification, where solutions to the problem instead of the current model in state space diagnostic identity is used a systems reference model without failures. To detect and localize faults is formed a mismatch between the real system output, its current state and the reference model output. Is given the structure of fault-tolerant control system based on the reference model in state space. Are observed three main approaches for diagnostic features formation in more complicated schemes required in clustering process unsatisfactory quality case.