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          Institute: MPI für Dynamik komplexer technischer Systeme     Collection: Systems and Control Theory     Display Documents



  history
ID: 116769.0, MPI für Dynamik komplexer technischer Systeme / Systems and Control Theory
Safety enforcement in process control systems : a batch evaporator example
Authors:Klein, E.; Raisch, J.
Language:English
Publisher:IEE
Date of Publication (YYYY-MM-DD):1998
Title of Proceedings:Proc. WODES '98 - International Workshop on Discrete Event Systems
Start Page:327
End Page:333
Name of Conference/Meeting:WODES `98
Place of Conference/Meeting:New York, USA
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
1998
Review Status:Peer-review
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:This contribution presents an approximation based safety enforcementscheme for a batch evaporator benchmark problem. Typically, safety enforcement in chemical engineering is a hybrid problem: the plantis (or parts of it are) represented by a continuous model, whereas the safety enforcing device is usually based on discrete intervention rules. Approximating the plant model by an automaton converts this problem into a purely discrete one, provided two conditions hold: the approximation behaviour must contain the continuous model behaviour; then, any control system guaranteeing safe operation for the discrete approximation will also enforce safety for the underlying continuous or hybrid model; the approximation must be "accurate enough" ("its behaviour small enough"), otherwise an appropriate safety enforcement scheme may not exist.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Jörg Raisch
Affiliations:MPI für Dynamik komplexer technischer Systeme/Systems and Control Theory
Identifiers:LOCALID:8
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