Designing transitory routing controllers for hybrid plants

Author

Fiedler, Claudia ; Meyer, Wolfgang ; Von Drathen, Arne

Author_Institution

Hamburg Univ. of Technol.

fYear

2005

fDate

28-31 Aug. 2005

Firstpage

934

Lastpage

939

Abstract

We describe a generic routing controller for nonlinear flow shops, and the respective design and verification tool based on coloured timed Petri nets. The design methodology integrates logical and performance-related control for discrete event systems by introducing a time invariant process V. V stands for the cycle time of a repetitive production system and for the stationary sequence of transport and move operations. Application site is a complex plant with 26 sequential/parallel workstations and process plans of 28 operations including multiple loops. The transport system is the bottleneck resource performing as a non-linear GMEC (general mutual exclusion constraint) on plant behaviour

Keywords

Petri nets; closed loop systems; control system synthesis; discrete event systems; flow shop scheduling; graph colouring; industrial control; time-varying systems; coloured timed Petri net; discrete event system; general mutual exclusion constraint; hybrid plant; hybrid systems; multiple loops; net invariant; nonlinear GMEC; nonlinear flow shop; parallel workstation; plant behaviour; process plan; repetitive production system; sequential workstation; time invariant process; transitory routing controller; transport system; verification tool; Control systems; Design methodology; Discrete event systems; Job shop scheduling; Manufacturing processes; Petri nets; Routing; System recovery; Throughput; Workstations;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 2005. CCA 2005. Proceedings of 2005 IEEE Conference on

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-9354-6

Type

conf

DOI

10.1109/CCA.2005.1507249

Filename

1507249