吉林大学学报(工学版) ›› 2004, Vol. ›› Issue (3): 475-478.

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Fuzzy expert control based on valve opening for gas reheating furnace

CAO Weihua, WU Min, DU Yuxiao   

  1. School of Information Science and Engineering, Central South University, Changsha 410083, China
  • Received:2004-02-15 Online:2004-07-01

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Abstract: Aimed at the combusion control process of reheating furnace possessing multiple parameters, time vary, nonlinear, strong couple and other characters, a fuzzy control method based on valve opening was proposed.The expected valve was directly obtained from the reheating furnace temperature errors and error rates; and accordingly automatic control of the combustion process of reheating furnace was achieved. The application of the fuzzy expert control improves the control delicacy for furnace tempreture control and tempreture adjusting speed,and realizes accurate furnace tempreture,the precision of 5% at stable control. This control method can resolve problems such as high overshoot, low tempreture varying speed, low control delicacy, and others. This control system has been put into operation and obtained both economic and social benefits obviously.

Key words: automatic control technology, reheating furnace, fuzzy control, expert system, opening of valve

CLC Number: 

  • TP273
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