本文關鍵詞： PID算法 非恒定流 自動控制 渠系運行　出處：《灌溉排水學報》2017年02期 　論文類型：期刊論文

【摘要】：渠道系統(tǒng)自動化運行是提高明渠輸水系統(tǒng)水資源利用效率的有效途徑,其基本思路是通過節(jié)制閘的實時調節(jié)維持渠道內的水位、流量在一定的目標狀態(tài)。經(jīng)典PID控制算法在應用到渠道控制中存在微分環(huán)節(jié)極易引起超調甚至系統(tǒng)失穩(wěn)的問題,因而實際渠系控制器多采用比例積分環(huán)節(jié)(PI),其缺點是響應緩慢。為了提高渠系控制的響應速度、減小系統(tǒng)調節(jié)動作量,在PID算法的積分環(huán)節(jié)中引入啟動閾值,并采用慣性環(huán)節(jié)串聯(lián)補償微分環(huán)節(jié)。采用ASCE的標準渠道測試算例進行建模仿真,計算結果表明改進算法在傳統(tǒng)PID算法的基礎上降低系統(tǒng)超調、減少閘門的調節(jié)量;在PI算法的基礎上提高系統(tǒng)響應速度。
[Abstract]:The automatic operation of canal system is an effective way to improve the efficiency of water resources utilization in open channel water conveyance system. The basic idea is to maintain the water level in the canal through the real-time regulation of the sluice. The classical PID control algorithm can easily cause overshoot or even system instability in channel control. In order to improve the response speed of canal system control and reduce the regulating action of the system, the actual canal system controller usually uses the proportional integration link PII, which has the disadvantage of slow response. The starting threshold is introduced in the integral link of PID algorithm, and the inertial link is used to compensate the differential link in series. The standard channel test example of ASCE is used to model and simulate. The results show that the improved algorithm can reduce the overshoot of the system and reduce the adjusting amount of the gate on the basis of the traditional PID algorithm. Based on Pi algorithm, the system response speed is improved.
【作者單位】： 武漢大學水資源與水電工程科學國家重點實驗室;貴州省水利水電勘測設計研究院;
【基金】：國家自然科學基金重點項目(51439006)
【分類號】：TP273;S274
【正文快照】： 0引言 渠道系統(tǒng)自動化控制是灌區(qū)管理信息化、自動化的重要標志。渠系自動化提高了渠道運行調度的水平,改善水的輸送效率,提高水資源利用率。目前,國內外灌區(qū)及調水工程大都為人工控制,水資源利用率較低、反應緩慢、需要大量操作人員,實現(xiàn)渠系自動化控制是解決上述問題的有效，

本文編號：1486054