模糊PID控制器在石灰窑温度控制系统中的应用

Application of Fuzzy PID Controller in Lime Kiln Temperature Control System

石灰窑的温度控制受外界许多多变参数的影响,传统PID不能满足控制要求。采用模糊PID算法,将窑尾温度的偏差及其变化作为输入变量,重油流量调节阀的流量变化作为输出变量,经系统仿真得出,模糊PID控制能达到良好的控制效果,可缩短过程控制的调整时间,窑尾温度有较好的鲁棒性。

Since the lime kiln temperature control is affected by various parameters outside,the traditional PID controllers cannot match it.Fuzzy PID calculation which using deviation and variation of kiln tail temperature as input variable,flow variation of heavy oil control valve as output variable,is adopted in this paper.After the simulation,fuzzy PID controller can get a favorable result：the adjusting time of process control is shortened and the robustness of kiln tail temperature is better.