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50575 Safety and Fault-tolerance of Automated Systems
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Danish title: Sikkerhed og fejltolerans i automatiserede systemer
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Language: English
Credit points: 5 |
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| Type: | Open University
Language: English |
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Prerequisite: 50310
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Recommended semester: Late in program
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Scope and form: Lectures and computerbased exercises
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Examination: Oral examination (2/3) and evaluation of report (1/3) (13-scale)
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| Contact person: | Mogens Blanke, bygn. 326, tlf. 4525 3564, email mb@iau.dtu.dk |
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Department: Department of Automation
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Aim: Faults in components are predictable events in any system. The effect of a fault could be break-down of single loops in an automated process, but could as well migrate to larger parts of the controlled plant and cause a close-down, a sudden stop, or even accidents with damage to persons, goods or the environment.
The purpose of the course is to give participants a capability and knowledge about methods for detection of faults in automated systems and to methods that could provide fail-operational, fault-tolerant or just fail-safe solutions. These terms mean a system that can continue operation unaffected by any single fault, that can continue with reduced performance, or that will close down to a state, which is considered safe in the context. This knowledge should be available to participants in both understanding of the theory and practice.
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Contents: The first part of the course deals with analytic methods for fault diagnosis in automated systems: faults in dynamic systems, requirements to detection, diagnosis from generation of residuals for a dynamic system, analytic redundancy, observers and other types of fault-detection filters, detection of change in a residual derived from noisy measurements.
The second part deals with methods to obtain fault-tolerant behavior of a control system: methods for fault propagation analysis, methods to analyze the structure of a system to determine whether there is analytic redundancy available for detection and later accommodation or reconfiguration when a fault occurs.
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