網(wǎng)絡(luò)控制系統(tǒng)事件觸發(fā)通信機(jī)制協(xié)同設(shè)計(jì)研究

1.1萬字
本人今年最新原創(chuàng)的畢業(yè)設(shè)計(jì)，僅在本站獨(dú)家提交，大家放心使用

摘要： 本文研究了帶有通信延遲和數(shù)據(jù)包丟失的網(wǎng)絡(luò)控制系統(tǒng)事件觸發(fā)通信機(jī)制和控制協(xié)同設(shè)計(jì)方法。首先，提出了事件觸發(fā)通信機(jī)制和網(wǎng)絡(luò)控制依賴系統(tǒng)的采樣誤差模型。在這一機(jī)制和模型中，該傳感器采用周期方式采樣；通過給采樣信號施加觸發(fā)條件，來確定信號是否被發(fā)送到控制器；具有狀態(tài)反饋控制器的網(wǎng)絡(luò)連接的閉環(huán)系統(tǒng)建模為時滯系統(tǒng)。其次，通過構(gòu)建一種新型的Lyapunov - Krasovskii泛函，給出了在非理想通信條件下能夠保證系統(tǒng)漸進(jìn)穩(wěn)定的三個定理。然后，提出了滿足特定系統(tǒng)性能的事件觸發(fā)條件和控制器反饋增益設(shè)計(jì)算法，該算法同時考慮了最大允許通信時延和最大允許連續(xù)丟包數(shù)這兩個因素。最后，用三個數(shù)值例子證明了該協(xié)同設(shè)計(jì)方法的有效性。

關(guān)鍵詞： 網(wǎng)絡(luò)控制系統(tǒng) 事件觸發(fā)通信機(jī)制 協(xié)同設(shè)計(jì) 數(shù)據(jù)包丟失


Event-triggered communication and H∞ control co-design
for networked control systems
Abstract：This paper studies an event-triggered communication scheme and an H∞ control co-design method for networked control systems (NCSs) with communication delay and packet loss. First, an event-triggered communication scheme and a sampledstate-error dependent model for NCSs are presented. In this scheme and model, (a) the sensor takes samples in a periodic manner; (b) a triggering condition is applied to sampled signal to determine whether a signal is transmitted to the controller or not; and (c) the closed-loop system with a networked state feedback controller is modeled as a time-delay system. This model takes into account the sampled-state-error between the two time instants, namely, at the current sampling instant and at the latest transmitted sampling instant. Secondly, by constructing a novel Lyapunov-Krasovskii functional, three theorems for the system asymptotical stability subject to imperfect communications are derived. Thirdly, a new algorithm is developed for the triggering condition and the controller feedback gain to meet the specified performance. This design algorithm is base on the two permissible limits on the signal transfer. These limits are: the maximum allowable communication delay bound and the maximum allowable number of successive packet losses, respectively. Finally, the proposed co-design method is demonstrated by three numerical examples.

Key words： Networked control systems event-triggered communication scheme co-design packet loss


目 錄
第一章 緒論 1
1.1 網(wǎng)絡(luò)控制系統(tǒng)概述 1
1.2 網(wǎng)絡(luò)控制系統(tǒng)的國內(nèi)外研究現(xiàn)狀 1
1.2.1 具有網(wǎng)絡(luò)誘導(dǎo)時延和丟包的網(wǎng)絡(luò)控制系統(tǒng)研究現(xiàn)狀 1
1.2.2 基于事件觸發(fā)機(jī)制的網(wǎng)絡(luò)控制系統(tǒng)研究現(xiàn)狀 3
1.3 本文用到的基本知識 3
1.4 本文的主要研究內(nèi)容 4
第二章 事件觸發(fā)通信機(jī)制與網(wǎng)絡(luò)控制系統(tǒng)建模 6
2.1 事件觸發(fā)通信機(jī)制 6
2.2 網(wǎng)絡(luò)控制系統(tǒng)建模 7
第三章 穩(wěn)定性分析與控制器設(shè)計(jì) 10
3.1 具有通信時延但無丟包時的穩(wěn)定性分析 10
3.2 具有通信時延和數(shù)據(jù)包丟失時的穩(wěn)定性分析 13
3.3 控制器設(shè)計(jì) 16
3.4 通信和控制協(xié)同設(shè)計(jì)算法 17
第四章 數(shù)值例子及結(jié)果分析 19
第五章 結(jié)論 24
致謝 25
參考文獻(xiàn) 26