本文選題：廣義網(wǎng)絡(luò)系統(tǒng) + 時(shí)延��； 參考：《河北科技大學(xué)》2015年碩士論文

【摘要】：從20世紀(jì)末以來,在新的科技革命和網(wǎng)絡(luò)化技術(shù)快速發(fā)展的帶動(dòng)下,通信網(wǎng)絡(luò)、系統(tǒng)控制、計(jì)算機(jī)信息發(fā)展迅速、應(yīng)用廣泛,網(wǎng)絡(luò)控制系統(tǒng)出現(xiàn)水到渠成。網(wǎng)絡(luò)控制系統(tǒng)兼具網(wǎng)絡(luò)和控制的優(yōu)點(diǎn),既符合當(dāng)今信息化時(shí)代的發(fā)展要求,而且在多個(gè)領(lǐng)域的應(yīng)用都十分廣泛,所以對(duì)廣義網(wǎng)絡(luò)系統(tǒng)控制方法的研究,意義重大。本文針對(duì)三類廣義網(wǎng)絡(luò)系統(tǒng)的魯棒H_∞控制方法進(jìn)行了研究,主要工作如下:1)針對(duì)時(shí)延問題,首先研究了廣義網(wǎng)絡(luò)系統(tǒng)的自身特點(diǎn)及其面對(duì)的問題,對(duì)具有短時(shí)延的廣義網(wǎng)絡(luò)系統(tǒng),首先建立數(shù)學(xué)模型,針對(duì)該模型采用LMI方法和Lyapunov函數(shù)進(jìn)行魯棒穩(wěn)定性分析,得出了使該系統(tǒng)魯棒穩(wěn)定的一個(gè)充分條件,導(dǎo)出了魯棒H_∞控制器的設(shè)計(jì)方法,最后通過數(shù)值仿真驗(yàn)證了所提控制方法的有效性。2)針對(duì)丟包問題,研究了廣義網(wǎng)絡(luò)系統(tǒng)的丟包模型,針對(duì)該模型采用LMI方法,設(shè)計(jì)出保證系統(tǒng)漸近穩(wěn)定具有一定的H_∞擾動(dòng)抑制水平g的魯棒H_∞控制器,得到了具有丟包廣義網(wǎng)絡(luò)系統(tǒng)的魯棒H_∞控制器存在的一個(gè)充分條件。3)對(duì)于一個(gè)廣義網(wǎng)絡(luò)系統(tǒng)來說,網(wǎng)絡(luò)帶來的系統(tǒng)時(shí)延和數(shù)據(jù)丟包往往是同時(shí)發(fā)生的。針對(duì)此問題,研究了一類具有短時(shí)延和數(shù)據(jù)包丟失的廣義網(wǎng)絡(luò)系統(tǒng)的魯棒H_∞控制問題。通過增廣系統(tǒng)狀態(tài)模型,提出靜態(tài)輸出反饋控制律,得到了保證閉環(huán)系統(tǒng)魯棒漸近穩(wěn)定且滿足魯棒加權(quán)H_∞性能指標(biāo)的充分條件,基于線性矩陣不等式給出了魯棒H_∞控制器的設(shè)計(jì)方法。數(shù)值仿真驗(yàn)證了所提控制方法的有效性。
[Abstract]:Since the end of the 20th century, with the rapid development of new science and technology revolution and network technology, communication network, system control and computer information have developed rapidly.Network control system has the advantages of both network and control. It not only meets the requirements of the development of information age, but also is widely used in many fields, so it is of great significance to study the control method of generalized network system.For the generalized network system with short delay, the mathematical model is first established, and the robust stability analysis is carried out by using the LMI method and the Lyapunov function. A sufficient condition for the robust stability of the system is obtained.The design method of robust H _ 鈭，

本文編號(hào)：1744808