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論文名稱 Title |
針對非匹配不確定動態系統之參考模式調適追蹤控制器設計
Design of Model Reference Adaptive Tracking Controllers for Mismatched Uncertain Dynamic Systems |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
48 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2002-06-05 |
繳交日期 Date of Submission |
2002-07-17 |
關鍵字 Keywords |
參考模式控制、最佳控制、適應控制 model reference control, optimal control, adaptive control |
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統計 Statistics |
本論文已被瀏覽 5698 次,被下載 13 次 The thesis/dissertation has been browsed 5698 times, has been downloaded 13 times. |
中文摘要 |
本論文基於李亞普諾夫理論(Lyapunov Theorem),針對強韌追蹤之問題提出一個具有擾動估測器的最佳參考模式調適控制器。且這些系統含有時間延遲和輸入非線性的多輸入多輸出之動態系統。本控制器包含了三種形式的控制器。首先是在假設無擾動情況下之最佳回授控制器。其次為具有自動調適擾動估測誤差之上界的調適控制器。最後則為擾動估測器。本控制器將保證 uniformly ultimately boundness 的特性,並分析其中參數的特性。最後,本論文提供二個數值範例以驗証控制器之可行性。 |
Abstract |
Based on the Lyapunov stability theorem, an optimal model reference adaptive control (OMRAC) scheme with perturbation estimation is presented in this thesis to solve robust tracking problems. The plant considered belongs to a class of MIMO perturbed dynamic systems with input nonlinearity and time varying delay in the state. The proposed control scheme contains three types of controllers. The first one is a linear feedback controller, which is an optimal controller if there is no perturbation. The second one is an adaptive controller, it is used for adapting the unknown upper bound of perturbation estimation error. The last one is the perturbation estimation mechanism. The property of uniformly ultimately boundness is proved under the proposed control scheme, and the effects of each design parameter on the dynamic performance is analyzed. Two numerical examples are given for demonstrating the feasibility of the proposed methodology. |
目次 Table of Contents |
Chapter 1 Introduction 1 1.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Brief Sketch of the Contents . . . . . . . . . . . . . . . . . . 3 Chapter 2 Optimal Model Reference Adaptive control 4 2.1 System Descriptions and Assumptions . . . . . . . . . . . . 4 2.2 Design of Optimal Control for a Nominal System . . . . . . 7 2.3 Design of Robust Tracking Controller with Perturbation Estimation . 10 2.4 Analysis of Stability . . . . . . . . . . . . . . . . . . . . . . 12 2.5 Summary of Design Procedure . . . . . . . . . . . . . . . . . 18 Chapter 3 Simulations 19 Chapter 4 Conclusions 40 References 41 |
參考文獻 References |
[1] K. J. Astrom and B. Wittenmark, Adaptive Control, Second edition, Canada: Addison-Wesley Publishing Company, Inc., 1995. [2] K. S. Narendra and A. M. Annaswamy, Stable Adaptive Systems, New Jersey: Prentice-Hall, Inc., 1989. [3] S. Sastry and M. Bodson, Adaptive Control: Stability, Convergence and Robustness, New Jersey: Prentice-Hall, Inc., 1989. [4] A. Datta and P. A. Ioannou, Performance analysis and improvement in model reference adaptive control," IEEE Trans. Automat. Contr., Vol. 39, No. 12, pp. 2370 ¡ 2387; 1994. [5] K. S. Narendra and L. Valavani, Stable adaptive controller design - direct control," IEEE Trans. Automat. Contr., Vol. AC-23, pp. 570 ¡ 583; 1978. [6] K. S. Narendra, Y. H. Lin, and L. Valavani, Stable adaptive controller design. Part II:proof of stability," IEEE Trans. Automat. Contr., Vol. AC-25, pp. 440 ¡ 448; 1980. 41 [7] K.-C. Hsu, Decentralized variable-structure control design for uncertain large-scale systems with series nonlinearities," Int. J. Contr., Vol. 68, No. 6, pp. 1231 ¡ 1240; 1997. [8] K.-C. Hsu, Variable structure control design for uncertain dynamic systems with sector nonlinearities," Automatica, Vol. 34, No. 4, pp. 505 ¡ 508; 1998. [9] K.-C. Hsu, Sliding mode controllers design for uncertain systems with input nonlinearities," J. Guidance, Contr., and Dynamics, Vol. 21, No. 4, pp. 666 ¡ 669; 1998. [10] K.-C. Hsu, Decentralized variable structure model-following adaptive control for interconnected systems with series nonlinearities," Int. J. Syst. Science, Vol. 29, No. 4, pp. 365 ¡ 372; 1998. [11] K.-C. Hsu, Adaptive variable structure control design for uncertain time-delayed systems with nonlinear input," Dynamics and Contr., Vol. 8, pp. 341 ¡ 354; 1998. [12] Y.-J. Sun and J.-G. Hsieh, Global exponential stabilization for a class of uncertain nonlinear systems with time-varying delay arguments and input deadzone nonlinearities," J. Franklin Institute, Vol. 332B, No. 5, pp. 619 ¡ 631; 1995. [13] Y.-J. Sun, G.-J. Yu, Y.-H. Chao, and J.-G. Hsieh, Exponential stability and guaranteed tracking time for a class of model reference control 42 systems via composite feedback control," Int. J. Adaptive Contr. and Signal Processing, Vol. 11, pp. 155 ¡ 165; 1997. [14] G. Wheeler, C.-Y. Su, and Y. Stepanenko, A sliding mode controller with improved adaptation laws for the upper bounds on the norm of uncertainties," Automatica, Vol. 34, No. 12, pp. 1657 ¡ 1661; 1998. [15] H. K. Khalil, Nonlinear Systems, Second edition, New Jersey: Prentice- Hall, Inc., 1996. [16] P. A. Ioannou and J. Sun, Robust Adaptive Control, New Jersey: Prentice-Hall, Inc., 1996. [17] M. Corless, Control of uncertain nonlinear systems," ASME J. Dyn. Syst. Meas., Control., Vol. 115, pp. 362 ¡ 372; 1993. [18] B. D. O. Anderson and J. B. Moore, Optimal Control - Linear Quadratic Methods, New Jersey: Prentice-Hall International, Inc., 1989. |
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