Controller design using Coloured Petri Nets — With a case study of the papermaking process control

This paper presents an approach to PID controller design using Coloured Petri Nets (CPNs). The method firstly models a process to be controlled and its controller with CPNs. Based on the model, we conduct controller parameter tuning by combining CPN state space analysis techniques and traditional loop tuning method. The approach is illustrated with the controller design for part of a papermaking process. The result shows that the method provides a feasible and formal way for constructing PID controllers. Meanwhile the result reveals some issues to be addressed to further develop the method.