Intelligent Control Of Gas Collector Pressure System In Coke Oven

The control technology of Gas Collector Pressure is researched. Gas CollectorPressure is the guide line in coking process, the stabilization of Gas Collector Pressureis the main parameter for coke oven normally producing, which affect the quality ofcoke, the life of oven, the recycle efficiency of coking product, the energy sourceconsume, the environment pollution and etc. Because of several coke ovens areconnected in parallel, there are many external disturbances and complex couplingrelations in or out of the coke oven group. So the Gas Collector Pressure system is acomplex multi-variable control system and difficult to set up accurate mathematicalmodel.The main application, research progress and current problems of fuzzy control areintroduced in this thesis. Disturbance factors, which affect the pressure stability ofdischarge header, are enumerated. Coupling relation and simplified model of controlsubject is analyzed. Using basic fuzzy control theory and conclusive expertexperience, the adaptive fuzzy control system of discharge header's pressure system isdesigned. It contains three parts: fuzzy control design of discharge header's pressureloop; fuzzy decoupling design of interclass and interblock; monitoring system of mainline suction. The combination of daptive fuzzy control and fuzzy decoupling isintroduced to control the Gas Collector Pressure. Monitoring control of suction isestablished to coordinate the whole system, which combine the intelligent control forGas Collector Pressure. By actual measurement comparison curve, effect of presentedscheme is obvious and achieves the design goal.