Threshold selection based on closed-loop performance for fault detection schemes

نویسنده

  • S. Aberkane
چکیده

The threshold selection issue is considered in a fault detection system which is a part of an active fault tolerant control scheme. The proposed approach takes explicitly into account the closed-loop performance of the regulated system. Indeed, the threshold is selected to ensure optimal regulation performance over a specified time horizon, while taking into account possible malfunctions affecting the system. More specifically sensor faults, like bias or drift, are considered in combination with a reconfiguration scheme made of software sensors. A numerical algorithm based on randomization techniques is provided and its running is illustrated on a numerical example of FTC for a winding machine.

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تاریخ انتشار 2008