基于駐留概率信息的網(wǎng)絡(luò)化切換系統(tǒng)的控制和濾波
發(fā)布時(shí)間:2018-10-05 21:19
【摘要】:切換系統(tǒng)是由有限的子系統(tǒng)和一個(gè)切換規(guī)則構(gòu)成,可以用于許多單一模型無法刻畫的復(fù)雜系統(tǒng),較一般模型更加貼近真實(shí)系統(tǒng)。另外,隨著工程中對控制性能、安全等要求越來越高,通過網(wǎng)絡(luò)完成系統(tǒng)的監(jiān)測、控制已經(jīng)得到廣泛研究。因此,網(wǎng)絡(luò)化切換系統(tǒng)的研究具有重要的研究價(jià)值。駐留概率表示在足夠長的時(shí)間范圍內(nèi)切換系統(tǒng)停留在某個(gè)特定子系統(tǒng)的概率。本文提出一種基于駐留概率信息的方法,運(yùn)用此方法得到新的切換系統(tǒng)模型,通過Lyapunov泛函的方法分析切換系統(tǒng)的輸出反饋控制器設(shè)計(jì)問題及有限時(shí)間H∞控制問題,并且在切換系統(tǒng)的基礎(chǔ)上引入網(wǎng)絡(luò)誘導(dǎo)延遲、數(shù)據(jù)丟包,建立新型的網(wǎng)絡(luò)化切換系統(tǒng),分析解決異步切換的網(wǎng)絡(luò)化切換系統(tǒng)的H∞控制問題和網(wǎng)絡(luò)信道衰落的系統(tǒng)濾波問題。首先,通過引入駐留概率信息提出一種新的隨機(jī)切換系統(tǒng)模型,利用多Lyapunov泛函方法和線性矩陣不等式技術(shù)給出使系統(tǒng)魯棒H∞均方穩(wěn)定的充分條件,并且得到H∞性能抑制水平γ和輸出反饋控制器的設(shè)計(jì)方法,通過給出的仿真實(shí)例驗(yàn)證方法的有效性。其次,針對離散切換系統(tǒng)的有限時(shí)間H∞控制問題,利用駐留概率信息,給出一種新的切換系統(tǒng)模型,利用Lyapunov泛函方法得到系統(tǒng)隨機(jī)有限時(shí)間H∞有界的充分條件,并給出有限時(shí)間H∞反饋控制器的設(shè)計(jì)。同時(shí),考慮到部分駐留概率未知和系統(tǒng)參數(shù)存在不確定性的情況,并給出了相應(yīng)的分析方法,用一組切換系統(tǒng)的數(shù)據(jù)針對不同的情況證明方法是正確的。接著,研究了異步網(wǎng)絡(luò)化切換系統(tǒng)的H∞控制問題?紤]網(wǎng)絡(luò)誘導(dǎo)延遲和數(shù)據(jù)丟包,通過具有時(shí)變延遲的異步采樣切換系統(tǒng)和駐留概率信息得到一種新的網(wǎng)絡(luò)化切換模型。然后給出使網(wǎng)絡(luò)化切換系統(tǒng)魯棒H∞隨機(jī)穩(wěn)定的充分條件、H∞性能抑制水平γ和相應(yīng)的反饋控制器的設(shè)計(jì)方法,并通過仿真驗(yàn)證所提出的方法可以使系統(tǒng)滿足期望的性能。最后,考慮在實(shí)際系統(tǒng)中網(wǎng)絡(luò)的信道衰落問題,通過駐留概率信息的方法建立新的網(wǎng)絡(luò)化切換系統(tǒng)模型,利用Lyapunov泛函方法,分析了網(wǎng)絡(luò)化切換系統(tǒng)的H∞濾波性能,并給出H∞濾波器設(shè)計(jì)方法,運(yùn)用仿真證明方法的有效性。
[Abstract]:The switched system is composed of a limited subsystem and a switching rule. It can be used in many complex systems which can not be described by a single model, and is closer to the real system than the general model. In addition, with more and more requirements of control performance and safety in engineering, control has been widely studied through network monitoring. Therefore, the research of networked switched systems has important research value. The resident probability represents the probability that the switching system stays in a particular subsystem for a long enough time. In this paper, a method based on dwell probability information is proposed. A new switching system model is obtained by using this method. The output feedback controller design problem and finite time H 鈭,
本文編號(hào):2254899
[Abstract]:The switched system is composed of a limited subsystem and a switching rule. It can be used in many complex systems which can not be described by a single model, and is closer to the real system than the general model. In addition, with more and more requirements of control performance and safety in engineering, control has been widely studied through network monitoring. Therefore, the research of networked switched systems has important research value. The resident probability represents the probability that the switching system stays in a particular subsystem for a long enough time. In this paper, a method based on dwell probability information is proposed. A new switching system model is obtained by using this method. The output feedback controller design problem and finite time H 鈭,
本文編號(hào):2254899
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