Intelligent Compound Control for Electrode-lift in the Steelmaking Process of Electric Furnace

The principle and the method of intelligent compound control for elctrode-lift in the steelmaking process introduced. Bang-Bang control is used in the melt-time, FUZZY control is used in the oxidaton-time. PID control is used in the reduction-time.The three harmony have adopted intelligent operate. The experimental results show that it has the advantages of fast regulating, fast trace and high control accuracy.