模糊自整定PID参数控制器用于控制热轧带钢卷取温度

Hot Strip Coiling Temperature Control Based on Fuzzy Self-Adjustable PID Parameter Controller

针对热轧带钢头部和尾部温度偏差较大的情况 ,将模糊自整定 PID参数控制器用于控制热轧带钢卷取温度。在常规 PID调节器的基础上 ,采用模糊推理思想 ,根据不同的温度偏差 |e|和偏差变化率 |ec|,对 PID参数进行在线自整定模糊控制 ,使控制系统在过程状态参数变化引起 |e|和 |ec|变化的初期能及时准确地将

As the temperature deviation at leading end and tail of the hot strip is larger than other parts. The fuzzy self adjustable PID parameter controller can be used to control hot strip coiling temperature. On the basis of conventional PID adjuster, according to different temperature deviation ｜ e ｜ and its rate ｜ ec ｜, the parameter self adjustable fuzzy control can be performed with fuzzy reasoning idea to confine strictly ｜ e ｜ within a limited range at the beginning of ｜ e ｜ and ｜ ec ｜ change caused by variation of process state parameter.