Scheduling and control of batch chemical processes with timed Petri nets

Document Type

Conference Proceeding

Publication Date

11-14-2016

Abstract

A formal approach is proposed for optimal scheduling and control problems in a batch chemical system. First, a method is presented to model it as a P-timed Petri net (PN), which can graphically describe how it may operate according to recipes, and which valve and pipeline are required by each operation. Second, this P-timed PN model is simplified according to the conflicts caused by the shared valves, and, in turn, it is utilized to define a linear programming where the optimal objective is the minimal processing time. Further, the A∗ algorithm is used to solve this programing to obtain an optimal strategy. Finally, via the P-timed PN model, a method is obtained to compute a control matrix for valves that can guarantee the optimal strategy. A typical batch system is used to illustrate the theoretic results.

Identifier

85001075184 (Scopus)

ISBN

[9781509024094]

Publication Title

IEEE International Conference on Automation Science and Engineering

External Full Text Location

https://doi.org/10.1109/COASE.2016.7743436

e-ISSN

21618089

ISSN

21618070

First Page

421

Last Page

426

Volume

2016-November

Grant

61573158

Fund Ref

National Natural Science Foundation of China

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