| The dry product line of LUBI construction materials Company includes a great number of equipments and the condition is very hard. This product line is controlled by HONEYWELL MICRO TDC 3000 system, so it gets a better effect.This paper gives a brief introduce of the product line of LUBI Company. A control design bring forward in this paper. This paper also introduces the design structure hardware and software system adjust of the DCS system and the communication between the LCN network and UCN network.This system consists of two networks named LCN and UCN. There are NIM, US, AM and HM node on the LCN and APM, LM on the UCN. The LCN and UCN exchange the data via NIM.The UCN node complete the automation control of all the equipments. Include chain start and stop,material distribute control,stove tail material control,comb machine speed,cold wind flux control.decompound stove coal flux.LCN node complete the alarm function monitor and operate reports printing function,and super control process.Doing deep study about the fuzzy control basic theory, the fuzzy control arithmetic and the design of fuzzy controller; Adopting fuzzy control arithmetic to control hot-wind furnace temperature, detailed deduce the fuzzy control variable definition of fuzzy controller, and the found of fuzzy rule, and the form of fuzzy operation and fuzzy general control table, and fuzzy control adjust, the run of fuzzy control model resolved the huge lag of control variant and control overshoot and very slow response speed, the performance greatly improve, now response speed is very quick, control overshoot is little, achieved high control accuracy.The study conclusion of the article is proved in production, all in contract is exceed the necessary technical target, took technical basic for the good economy benefit. |
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