Conference paper
Understanding Control Function and Failure From a Process Perspective
In control design, fault-identification and fault tolerant control, the controlled process is usually perceived as a dynamical process, captured in a mathematical model. The design of a control system for a complex process, however, begins typically long before these mathematical models become relevant and available.
To consider the role of control functions in process design, a good qualitative understanding of the process as well as of control functions is required. As the purpose of a control function is closely tied to the process functions, its failure has a direct effects on the process behaviour and its function.
This paper presents a formal methodology for the qualitative representation of control functions in relation to their process context. Different types of relevant process and control abstractions are introduced and their application to formal analysis of control failure modes from a process perspective is presented.
Finally anticipated applications in context of offline analysis and online supervisory control are discussed.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2012 |
| Pages: | 22-27 |
| Proceedings: | COMPENG 2012 |
| Journal subtitle: | Compeng 2012 |
| ISBN: | 1467316148 , 9781467316149 , 146731613X , 1467316156 , 9781467316132 and 9781467316156 |
| Types: | Conference paper |
| DOI: | 10.1109/CompEng.2012.6242946 |
| ORCIDs: | Heussen, Kai and Lind, Morten |
Complex Processes Control abstraction Control failure modes Control functions Controlled process Dynamical process Expert systems Fault tolerant control Formal analysis In-control In-process Mathematical models Off-line analysis Process control Process design Process functions Qualitative representation Supervisory control
Analytical models Biological system modeling Cognition Context Control systems Mathematical model complex process control system design control abstractions control failure modes control functions control system synthesis dynamical process fault identification fault tolerance fault tolerant control formal analysis formal methodology mathematical model offline analysis online supervisory control process behaviour process control process functions
