兩類時變時滯系統(tǒng)的穩(wěn)定性分析和控制設(shè)計
發(fā)布時間:2020-12-20 12:11
時滯是許多實際系統(tǒng)普遍存在的現(xiàn)象,也是直接影響和決定系統(tǒng)的穩(wěn)定性和性能的關(guān)鍵因素。時滯可以是定常的、時變的或者隨機的。目前,帶有定常時滯的線性系統(tǒng)的穩(wěn)定性分析研究已相對成熟,但關(guān)于時變時滯情形的研究依然存在很多問題。例如很難為時變時滯系統(tǒng)建立時滯依賴的系統(tǒng)穩(wěn)定性的充分必要條件,因而尋求盡可能小保守性的穩(wěn)定性條件尤為必要和重要。本文將聚焦兩類時變時延時滯系統(tǒng)的穩(wěn)定性分析和控制設(shè)計問題。一類是帶有狀態(tài)時變時滯的線性系統(tǒng),其中時變時滯是連續(xù)可微的且時滯導(dǎo)數(shù)區(qū)間是可利用的。另一類是帶有鋸齒形區(qū)間輸入時滯的線性系統(tǒng),它用來建模帶有事件觸發(fā)機制和區(qū)間通訊時延的網(wǎng)絡(luò)化控制系統(tǒng)。研究兩類系統(tǒng)穩(wěn)定性分析的主要難點在于如何充分利用時變時滯的可利用信息來構(gòu)造合適的Lyapunov-Krasovskii泛函及相關(guān)的放大不等式技術(shù)。為此,本文具體研究內(nèi)容開展如下:(1)針對帶有時變時滯的線性連續(xù)系統(tǒng),得到了時滯及時滯導(dǎo)數(shù)范圍依賴的穩(wěn)定性條件和控制設(shè)計結(jié)果。使用階Legendre多項式與時變時滯信息提出了一個新的時滯依賴的增廣Lyapunov-Krasovskii泛函,并松弛了泛函矩陣變量的正定約束。然后,使用一...
【文章來源】:山西大學(xué)山西省
【文章頁數(shù)】:68 頁
【學(xué)位級別】:碩士
【文章目錄】:
摘要
ABSTRACT
Chapter 1 Introduction
1.1 Research background and significance
1.2 The art of state on time-delay systems and NCSs
1.2.1 Time-varying delay systems
1.2.2 Networked control systems
1.3 Main contributions
1.4 Notations
Chapter 2 Delay-and-delay-derivative-dependent stability conditions and controldesign results
2.1 Problem description and preliminaries
2.2 Main results
2.2.1 Delay-and-delay-derivative-dependent stability analysis results
2.2.2 LMI-based controller design conditions
2.3 Numerical examples
2.4 Summary
Chapter 3 Stability analysis and control design of NCSs: a discontinuous augmentedLKF method
3.1 Problem description and preliminaries
3.2 Main results
3.2.1 Sawtooth-like input delay dependent stability analysis results
3.2.2 Design conditions of the networked controller under event-triggeringtransmission scheme
3.3 Numerical examples
3.4 Summary
Chapter 4 Conclusions and prospects
4.1 Conclusions
4.2 Prospects
References
Published articles directory
Acknowledgements
個人簡介
本文編號:2927842
【文章來源】:山西大學(xué)山西省
【文章頁數(shù)】:68 頁
【學(xué)位級別】:碩士
【文章目錄】:
摘要
ABSTRACT
Chapter 1 Introduction
1.1 Research background and significance
1.2 The art of state on time-delay systems and NCSs
1.2.1 Time-varying delay systems
1.2.2 Networked control systems
1.3 Main contributions
1.4 Notations
Chapter 2 Delay-and-delay-derivative-dependent stability conditions and controldesign results
2.1 Problem description and preliminaries
2.2 Main results
2.2.1 Delay-and-delay-derivative-dependent stability analysis results
2.2.2 LMI-based controller design conditions
2.3 Numerical examples
2.4 Summary
Chapter 3 Stability analysis and control design of NCSs: a discontinuous augmentedLKF method
3.1 Problem description and preliminaries
3.2 Main results
3.2.1 Sawtooth-like input delay dependent stability analysis results
3.2.2 Design conditions of the networked controller under event-triggeringtransmission scheme
3.3 Numerical examples
3.4 Summary
Chapter 4 Conclusions and prospects
4.1 Conclusions
4.2 Prospects
References
Published articles directory
Acknowledgements
個人簡介
本文編號:2927842
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