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相關文獻
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題名 | Robust Control for Siso Systems with Mismatched Uncertainties=針對具有非吻合性不確定的單輸出入系統之強韌控制 |
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作 者 | 陳明新; 唐光華; | 書刊名 | 自動控制學刊 |
卷期 | 5:3 1997.09[民86.09] |
頁次 | 頁171-180 |
分類號 | 448.942 |
關鍵詞 | 非吻合性不確定; 單輸出入系統; 強韌控制; Uncertain systems; Matching condition; Robust control; Uncertainty estimator; |
語文 | 英文(English) |
中文摘要 | 傳統的強韌控制能對付大型的系統不確定,只有在系統的不確定滿足某種吻合性 的結構條件時才為可行。本篇論文利用一組"不確定估測器"而設計出一強韌控制器,可對付 大型的非吻合性的系統不確定。此新型強韌控制器能保證回饋系統為"半全域穩定";亦即給 予任一起始狀態,都存在二組控制器參數,使得系統為穩定。在外界沒有干擾的狀況下,更 能保證系統狀態收斂至原點的附近。 |
英文摘要 | Conventional robust control can tolerate large system uncertainties only if the uncertainties satisfy certain structural conditions such as the (generalized) matching condition. In this paper, a new robust state feedback control is proposed to accommodate large mismatched uncertainties. The key feature of the proposed control is the use of a series of uncertainty estimators which can on-line estimate potentially unbounded time-varying signals in a dynamic system. The new control ensures semi-global stability of the closed-loop system; that is, given any initial state, there always exists a set of control parameters such that the system state remains bounded. In addition, the system state converges to an arbitrarily small neighborhood of the origin when there is no external disturbance acting on the system. |
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