Journal of Shanghai Jiaotong University ›› 2012, Vol. 46 ›› Issue (12): 1896-1900.

• Automation Technique, Computer Technology • Previous Articles     Next Articles

Sequential Controller Synthesis and Formal Models for Batch Chemical Processes

 LUO  Ji-Liang, CHEN  Xue-Kun, QI  Peng-Fei, ZHAO  Po   

  1. (College of Information Science and Engineering, Huaqiao University, Xiamen 361021, Fujian, China)  
  • Received:2012-06-02 Online:2012-12-29 Published:2012-12-29

Abstract: A method was proposed to design the Petri-net model for a batch chemical system based on the actuator-element net. A process flow was depicted as a sequential control specification that is in the form of a transition sequence. Further, a method was proposed to model this sequential control specification as linear constraints on Petri nets. By the place invariant method, a monitor place was designed for each linear constraints, and consequently, the sequential Petrinet supervisor was obtained. By this method, the closed-loop control system for a complexity chemical process can be modeled, analyzed and perfected based on formal methods.

Key words: discrete event systems, Petri nets, batch chemical processes, sequential control, supervisory control