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Performance analysis on fault tolerant control system

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2 Author(s)
Jong-Yeob Shin ; Nat. Inst. of Aerosp., Hampton, VA ; Belcastro, C.M.

In a fault tolerant control (FTC) system, a parameter varying FTC law is reconfigured according to fault parameters estimated by fault detection and isolation (FDI) modules. FDI modules require some time to detect fault occurrences in aero-vehicle dynamics. In this brief, an FTC analysis framework is provided to calculate the upper bound of an induced-L2 norm of an FTC system in the presence of false identification and detection time delay. The upper bound is written as a function of a duration time interval and exponential decay rates and has been used to determine which FTC law produces less performance degradation (tracking error) due to false identification. The analysis framework is applied for an FTC system of a highly maneuverable aircraft technology (HiMAT) vehicle

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:14 ,  Issue: 5 )