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題名 | Design of a PID-Deadtime Control for Time-Delay Systems Using the Coefficient Diagram Method=以係數圖示法設計時延系統之PID-deadtime控制器 |
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作者 | 黃奇; 黃志豪; 黃立方; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 33:6 2002.11[民91.11] |
頁次 | 頁565-571 |
分類號 | 460.021 |
關鍵詞 | 係數圖示法; 時延系統; PID-deadtime控制器; PID control; Smith predictor; Time delay processes; Dead-time compensation; |
語文 | 英文(English) |
中文摘要 | 在PI或PID控制器的迴饋電路上插入一個時延項可建立類似於Smith預測或內部模式控制器的轉移函數。對於具有時延的程序,此種控制方式比傳統的PID控制器在調節的性能方面有較佳的表現,然而一直缺乏有系統的設計方法。在本論文中,吾人提出以係數圖示法設計PID-deadtime控制器,此種方法可視為一種模式匹配法。係數圖示法設計程相當簡單,其中只涉及解決一個簡單的最適化問題來決定控制器參數。由模擬的結果顯示,設計出的PID-deadtime控制系統具有很好均衡的穩定性、時間應答與強韌性。 |
英文摘要 | The insertion of a time delay into the integral feedback circuit of a PI/PID controller y8ields a transfer function similar to a Smith predictor or an internal-model controller. Although it enables better regulatory performance than a conventional PID control algorithm for lag-dominant processes, a systematic design method for this PID-deadtime controller is till lacking. In this paper, we design a PID-0deadtime controller using the coefficient diagram method (CDM), which is a kind of model matching approach. The design procedure is simple since it only involves solving a simple optimization problem to determine the controller parameters. The simulation results show that the designed PID-deaditme control loop exhibits a good balance of stability, response and robustness for deadtime-dominant processes. |
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