本文關(guān)鍵詞：資源受限的無(wú)線網(wǎng)絡(luò)控制系統(tǒng)建模與濾波器設(shè)計(jì)　出處：《安徽工程大學(xué)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 無(wú)線網(wǎng)絡(luò)控制系統(tǒng) 資源受限 丟包 能量受限 濾波器

【摘要】：隨著網(wǎng)絡(luò)通信技術(shù)、控制理論等快速發(fā)展,無(wú)線網(wǎng)絡(luò)通信技術(shù)構(gòu)筑的無(wú)線網(wǎng)絡(luò)控制系統(tǒng)(Wireless Networked Control Systems,WNCSs)在實(shí)際工業(yè)系統(tǒng)中得到了越來(lái)越廣泛的應(yīng)用。WNCSs就是利用無(wú)線通信網(wǎng)絡(luò)將控制系統(tǒng)中的傳感器、控制器(濾波器)和執(zhí)行器連接形成閉環(huán)系統(tǒng),它具有低成本、易于安裝維護(hù)、高性能等優(yōu)點(diǎn),然而將無(wú)線網(wǎng)絡(luò)引入到工業(yè)控制中,會(huì)帶來(lái)信道資源受限、隨機(jī)丟包、誘導(dǎo)時(shí)延等問(wèn)題,使系統(tǒng)的性能分析和設(shè)計(jì)變得復(fù)雜。因此,研究資源受限的無(wú)線網(wǎng)絡(luò)控制系統(tǒng)濾波技術(shù),具有很大的發(fā)展前景和推廣價(jià)值。本文將重點(diǎn)研究WNCSs模型構(gòu)建以及濾波器設(shè)計(jì),并進(jìn)行相關(guān)的數(shù)值仿真。具體研究?jī)?nèi)容如下:首先,針對(duì)無(wú)線網(wǎng)絡(luò)控制系統(tǒng)存在信道受限和外部噪音干擾問(wèn)題,研究了一類(lèi)無(wú)線網(wǎng)絡(luò)控制系統(tǒng)H∞濾波器設(shè)計(jì)方法。利用離散馬爾科夫鏈模型刻畫(huà)無(wú)線網(wǎng)絡(luò)信道受限傳輸數(shù)據(jù)過(guò)程,推導(dǎo)出閉環(huán)WNCSs模型,并設(shè)計(jì)模型依賴(lài)H∞濾波器,同時(shí)給出濾波器參數(shù)矩陣求解方法。其次,同時(shí)考慮信道受限和隨機(jī)丟包無(wú)線網(wǎng)絡(luò)控制系統(tǒng)l2/l∞濾波器設(shè)計(jì)。利用對(duì)數(shù)量化器量化傳感器量測(cè)數(shù)據(jù),并采用離散Markov鏈描述無(wú)線信道接通狀態(tài),以伯努利隨機(jī)序列搭建多通道丟包模型,從而推導(dǎo)出閉環(huán)WNCSs模型以及系統(tǒng)隨機(jī)穩(wěn)定條件下的l2/l∞濾波器參數(shù)。最后,從節(jié)能優(yōu)化角度探討了無(wú)線網(wǎng)絡(luò)控制系統(tǒng)H∞濾波器設(shè)計(jì)。利用時(shí)變采樣策略和降頻發(fā)送策略,以降低傳感器采樣和發(fā)送期間能量消耗,運(yùn)用李雅普諾夫函數(shù)和線性矩陣不等式技術(shù)推導(dǎo)出閉環(huán)WNCSs的隨機(jī)穩(wěn)定性條件,同時(shí)設(shè)計(jì)H∞濾波器。
[Abstract]:With the rapid development of network communication technology, control theory and so on. Wireless Networked Control Systems, a wireless network control system based on wireless network communication technology. WNCSs) has been more and more widely used in industrial systems. WNCSs use wireless communication networks to control the sensors in the system. The controller (filter) and actuator are connected to form a closed-loop system, which has the advantages of low cost, easy installation and maintenance, high performance, etc. However, introducing wireless network into industrial control will bring limited channel resources. The problem of random packet loss and induced delay makes the performance analysis and design of the system complex. Therefore, the filtering technology of wireless networked control systems with limited resources is studied. This paper will focus on the WNCSs model construction and filter design, and carry out the relevant numerical simulation. The specific research contents are as follows: first. For wireless network control system, there are some problems such as channel limitation and external noise interference. The design method of H 鈭，

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