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頁籤選單縮合
題名 | A Sequential Approach to Liquid Level Control=循序式液位控制 |
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作者 | 陳鏘澤; 吳國亮; 余政靖; | 書刊名 | 中國工程學刊 |
卷期 | 20:4 1997.07[民86.07] |
頁次 | 頁457-464 |
分類號 | 460.02 |
關鍵詞 | 液位控制; 積分程序; 平均液位控制; 智慧型控制; Level control; Integrator process; Averaging level control; Intelligent control; |
語文 | 英文(English) |
中文摘要 | 發展循序式比例斜坡設定控制,來解決液位控制的問題,如平順排放流量、消除 液位偏離。在比例斜坡設定控制中,先利用比例控制具有平順流量的特性來處理入料流量的 改變、隨之將設定點以斜坡函數變化到穩態操作點。然而這兩個目的以比例液位控制循序達 成,以一個調諧步驟找出比例控制器的增益和循著一組規則引入斜坡式設定點的改變,模擬 結果顯示比例斜坡控制能提供一個簡單且有效的選擇。 |
英文摘要 | A sequential control, P-SPR (proportional plus set point ramp) control, is proposed to resolve the conflicting objectives in liquid level control: outflow smoothing and zero offset in liquid level. P-SPR control uses the flow smoothing characteristic of P control to handle inflow changes first and, subsequently, the steady-state error in liquid level is eliminated by ramping the level back to its set point once a steady-state is observed. Therefore, these two objectives are achieved in a sequential manner using a P level control. A tuning procedure is given to find the proportional gain and the slope of the ramp followed by a set of rules initiating the set point ramping. Simulation results show that P-SPR control provides a transparent and effective alternative for liquid level control. |
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