Model-Based Autotuning Systems with Two-Degree-of-Freedom Control

本文提出一個以模式為基礎且具有雙自由度控制功能之自動調諧系統。此雙自由度控制系統同時兼具設定點追蹤與負荷干擾排除的能力，而且此兩控制目的可獨立的來進行設計。此外，文中亦提出一個閉環路架構用以產生系統識別時所需要的輸入訊號，該閉環系統可消除在識別時有未知干擾發生的影響並確保程序輸入之平均值為零。識別方法乃是由次空間識別演算法之中間過程演導而得，首先計算出程序之脈衝響應序列，進而識別出其低階模式。模擬結果顯示此雙自由度自動調諧系統具有良好之性能。

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並列摘要

A model-based autotuning system with two-degree-of-freedom (2-df) control is presented. The 2-df control system presented provides capabilities of set-point tracking and load rejection as well in one single system and the two control objectives can be considered independently for design. A closed-loop system is presented to generate an excitation input sequence for system identification. This closed-loop system consists of a control algorithm to eliminate unknown but constant disturbances during identification and guarantee the input to have a zero mean. The identification method is derived from an intermediate stage of the subspace identification algorithm. From which, an impulse response sequence of the process can be computed and a reduced order model is identified. The effectiveness of this proposed 2-df autotuning system is demonstrated with simulation results.

並列關鍵字

Autotuning ； Two-degree-of-freedom control ； System identification ； Impulse response sequence

國際替代計量

Model-Based Autotuning Systems with Two-Degree-of-Freedom Control

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