Sponsored by: STW
The aim is the development of fast and reliable algorithms for fault detection and diagnosis (FDD) and controller reconfiguration (CR). In control systems, faults are events that could cause unwanted behavior or a catastrophe of the controlled system. The design of FTC systems has therefore the purpose to prevent the degradation from simple faults into serious system failures, since system failures might lead to huge economical and human losses. A fault-tolerant system consists of two main parts (see Figure 7): one that has the task to detect and diagnose faults that occur in the control system, and another that reconfigures the controller accordingly, whenever faults occur in the system, so that the performance of the reconfigured faulty closed-loop system is preserved at some desired level.
The goal in the project is the development of numerically fast and robust algorithms for on-line implementation, applicable to the problems of FDD and CR in cases of both abrupt and incipient system faults in the sensors, actuators and physical parameters in the system. The project is subdivided into two work packages, one dealing with fault detection and isolation (researcher R. Hallouzi, started in 2004), and another focused on the problem of controller reconfiguration (researcher S. Kanev, 1999-2003).
Within Work Package I the main focus is put on the following items:
Within Work Package II different approaches have been developed:
Next: Fuzzy control of multivariable processes Up: Controller design Previous: Model-based fault detection and controller
Last modified: 24 March 2005, 10:16 UTC
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