聯(lián)系人：蔣經(jīng)理
手機：15359273790
電話：15359273790
Q Q：3549711439
郵箱：3549711439@qq.com
地址：廈門市思明區(qū)呂嶺路1733號2009單元
型號：TAS-311DG
類別：庫存現(xiàn)貨
聯(lián)系人：蔣經(jīng)理
手機：15359273790
電話：15359273790
Q Q：3549711439
郵箱：3549711439@qq.com
地址：廈門市思明區(qū)呂嶺路1733號2009單元
DEIF TAS-311DG對I/O模塊進行讀寫操作
設(shè)置回路增益一Ziegler 和Nicholas調(diào)節(jié)方法
一旦K、Tp和Tc等三個過程模型參數(shù)確定后.即可用來評價初始PID回路增益。下面的調(diào)節(jié)方法由Ziegler 和Nicholas在1940年代發(fā)展起來。幅比即閉路響應中第二峰值與第-峰值之比。
1.計算作用速率:
R= K/Tc
2.只對比例控制,計算Kp
Kp= 1/(R* Tp) = Tc/(K* Tp)
3.對于比例和積分控制
Kp=0.9/(R* Tp) =0.9* Tc/(K* Tp)
Ki=0.3* Kp/Tp
4.對于PID控制,
Kp= G/CR*
此處G為1.2-2.0
Ki=0.5* Kp/Tp
Kd=0.5* Kp* Tp
5.檢查采樣周期是否在(Tp+ Tc)/10至(Tp+ Tc)/1000之間。
還有一種“理想調(diào)節(jié)”方法,可獲得SP改變響應,僅由Tp過程延遲或死時間延遲。
Kp=2* Tc/(3* K* Tp)
Ki= Tc
Kd= KiV4
如果使用微分項。
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