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題名 | On the Stabilizing Uncertain Lur'e-Postnikov Systems by Variable Structure Control=可變結構控制於不確定Lur'e-Postnikov系統之應用 |
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作 者 | 徐國政; | 書刊名 | Fu Jen Studies. Science and Engineering |
卷期 | 31 1997.12[民86.12] |
頁次 | 頁1-17 |
分類號 | 448.942 |
關鍵詞 | Lur'e-Postnikov系統; 可變結構控制; 強健控制; 非線性輸入; 連續非線性; Lur'e-postnikov system; Variable structure control; Robust control; Nonlinear input; Series nonlinearity; |
語文 | 英文(English) |
中文摘要 | 本文針對不確定Lur'e-Postnikov系統,提出一強健控制方法。研究指出:在滑動模式中,具有非線性輸入之系統,仍然擁有線性輸入系統其不受不確定因子或外界干擾影響的特性。故所發展之可變結構控制器,能使不確定Lur'e-Postnikov系統的軸跡,進入所預定之滑動模式;然而控制計所需之資訊,僅為不確定因子與非線性輸入函數之邊界。同時,此滑動模式之收斂速度,可被限制在一預定的指數衰減範圍之內。 |
英文摘要 | This paper proposes a robust control method for the uncertain Lur'e-Postnikov systems. It shows that, in the sliding mode, the uncertain system with "nonlinear" input possesses the insensitivity property to the uncertainties and disturbances just as those with "linear" inputs do. Then a robust variable structure control law is investigated such that the trajectories of uncertain Lur'e-Postnikov system can be forced onto the sliding mode. The required informations about uncertain dynamics in the system are that the uncertainties are bounded by known functions and the property of the 44 nonlinear" inputs. Furthermore, the sliding mode can be designed to converge within a specified exponential speed. |
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