Abstract:

Aiming at an industrial DMF recovery plant, a kind of region expert coordination control system (RECCS) based on expert inference mechanism was proposed. With an S7-300 PLC based distributed control architecture, the expert control system can identify the operation states of regions from coupling data of the plant. The regional PID controllers were coordinated with the expert coordinating rules to realize plant-wide automation of the DMF recovery process. Simulation results on distillation models illustrated the effectiveness of the coordination control system. Easily integrated with DCS，the proposed expert region coordination control technique could be widely used in industrial applications.