Variable Structure Fuzzy Control for Gas Collector Pressure in Coke Oven

An intelligent control method is presented for gas collector in coke oven.The pressure controller for the second new gas collector is introduced in detail,which has large fluctuation range and fluctuates sharply.A variable-structure fuzzy control method is presented,which uses different control rules and quantitative factors to design two fuzzy controllers according to different ranges of the gas collector pressure.The simulation and actual operating results show that the system can make the gas collector pressure stable within 15s by accommodating corresponding butterfly-valves,and practical effect demonstrates the effectiveness and reliability of the algorithm.