Title
Logic-based switching controllers - A stepwise safe switching approach
Abstract
The present work proposes a new logic-based safe switching technique, called here Stepwise Safe Switching. This technique is based on the description of the process with linear approximants which are valid in operating areas around a finite number of nominal operating points of the process. Switching takes place between common controllers for adjacent nominal operating points. Moreover, the switching between the controllers is allowed to take place only when the process has reached an operating point. The proposed technique guarantees stability and good performance for all transitions between operating points that lie in the neighborhoods of the nominal operating points of the process. This way a simple to design and easy to implement solution that provides good performance despite the drawback of lack of knowledge of the process dynamics can be derived. The proposed technique is successfully applied to control an isothermal CSTR process, described by three linear approximants around corresponding nominal operating points.
Year
DOI
Venue
2007
10.1016/j.ins.2007.01.036
Inf. Sci.
Keywords
Field
DocType
nominal operating point,operating point,logic-based switching controller,process dynamic,stepwise safe switching approach,proposed technique,linear approximants,good performance,proposed technique guarantees stability,corresponding nominal operating point,isothermal cstr process,adjacent nominal operating point,hybrid system,linear approximation,intelligent control,hybrid systems,supervisory control
Intelligent control,Drawback,Continuous stirred-tank reactor,Finite set,Control theory,Operating point,Isothermal process,Supervisory control,Hybrid system,Mathematics
Journal
Volume
Issue
ISSN
177
13
0020-0255
Citations 
PageRank 
References 
4
0.51
32
Authors
3
Name
Order
Citations
PageRank
Fotis N. Koumboulis17227.15
Robert E. King240.85
Anna Stathaki3191.66