Design and Simulation of Temperature Controller for Calcining Zone of Rotary Kil

Aiming at the problems that traditional PID temperature control system for calcing zone of(rotary) kiln had poor temperature stability and couldn’t adjust PID parameters on-line,the paper proposed a scheme of temperature controller for calcining zone of rotary kiln using fuzzy self-tuning PID parameters control mode.It introduced structure,design steps of the controller and system modeling of rotary kiln’s calcining process,and gave simulation of the fuzzy self-tuning PID temperature controller using Simulink fuzzy toolbox in Matlab.The simulation(result) showed that the control mode had no overshoot and short adjusting time and could realize on-line self-adjustment of parameters.The actual application also proved superiority of the control method.