本文關(guān)鍵詞：基于事件驅(qū)動機(jī)制的網(wǎng)絡(luò)控制系統(tǒng)設(shè)計綜合　出處：《江蘇大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 網(wǎng)絡(luò)誘導(dǎo)時延 數(shù)據(jù)丟包 事件觸發(fā)機(jī)制 網(wǎng)絡(luò)控制系統(tǒng) 協(xié)同設(shè)計

【摘要】：隨著信息技術(shù)日新月異地變化,傳統(tǒng)的控制系統(tǒng)無法滿足實(shí)際生產(chǎn)地需求,尤其是在工業(yè)領(lǐng)域。網(wǎng)絡(luò)控制系統(tǒng)(network control system,NCSs)具有便于資源共享、易于安裝維護(hù)、快速故障診斷等諸多優(yōu)點(diǎn),得到廣泛的應(yīng)用。然而,網(wǎng)絡(luò)的引入將導(dǎo)致網(wǎng)絡(luò)誘導(dǎo)時延、數(shù)據(jù)丟包、通信限制等不良因素,從而對控制系統(tǒng)性能產(chǎn)生不利后果,這使得控制系統(tǒng)綜合分析研究面臨極大挑戰(zhàn)。為了使其滿足實(shí)時性需求,充分的利用網(wǎng)絡(luò)資源,基于事件驅(qū)動機(jī)制的研究受到了越來越多的關(guān)注。在充分考慮網(wǎng)絡(luò)誘導(dǎo)時延和數(shù)據(jù)丟包的基礎(chǔ)上,本文研究了基于事件驅(qū)動機(jī)制的網(wǎng)絡(luò)控制系統(tǒng)控制器設(shè)計問題,具體安排如下:首先,概述了基于事件觸發(fā)機(jī)制的網(wǎng)絡(luò)控制系統(tǒng)的研究進(jìn)展與成果,介紹了考慮網(wǎng)絡(luò)誘導(dǎo)時延、丟包等特性的網(wǎng)絡(luò)控制系統(tǒng)的控制器設(shè)計問題的研究現(xiàn)狀,給出了本文中需要用到主要引理以及符號說明。其次,對僅存在網(wǎng)絡(luò)誘導(dǎo)時延,不存在數(shù)據(jù)丟包的理想化網(wǎng)絡(luò)控制系統(tǒng),引入事件觸發(fā)通信策略,研究了相應(yīng)控制器設(shè)計問題。考慮了網(wǎng)絡(luò)控制系統(tǒng)中最大允許通信時延的上界,得到相應(yīng)閉環(huán)控制的模型。構(gòu)造新的Lyapunov-Krasovskii泛函,給出時延NCSs的控制器設(shè)計。然后,針對具有非均勻丟包的網(wǎng)絡(luò)控制系統(tǒng),研究了事件驅(qū)動機(jī)制的丟包補(bǔ)償切換控制器設(shè)計問題。考慮NCSs丟包非均勻分布的特性,針對兩種情況采用不同的切換控制器,建立基于事件驅(qū)動機(jī)制的網(wǎng)絡(luò)控制系統(tǒng)閉環(huán)系統(tǒng)模型,通過構(gòu)造新的Lyapunov-Krasovskii泛函,并利用Jensen不等式方法,進(jìn)行相關(guān)穩(wěn)定性的分析,給出丟包非均勻分布NCSs控制器設(shè)計。最后,綜合考慮了控制系統(tǒng)的性能參數(shù)以及網(wǎng)絡(luò)動態(tài)性能對事件觸發(fā)條件的影響,給出了事件觸發(fā)通信機(jī)制和網(wǎng)絡(luò)控制系統(tǒng)的采樣誤差模型,研究了網(wǎng)絡(luò)控制系統(tǒng)中事件觸發(fā)控制和控制器反饋增益協(xié)同設(shè)計的方法。這種設(shè)計方法考慮到了網(wǎng)絡(luò)傳輸器的數(shù)據(jù)包丟失和傳輸時延,從有無丟包兩方面的情況分析,用以上方法來維持了系統(tǒng)所需的H∞性能,并且更好地利用了網(wǎng)絡(luò)資源。通過三個數(shù)值例子驗證了本文提出方法的優(yōu)點(diǎn)。
[Abstract]:With the rapid change of information technology, the traditional control system can not meet the actual production needs. Especially in the industrial field. Network control system NCSs) is easy to share resources, easy to install and maintain. Rapid fault diagnosis and many other advantages have been widely used. However, the introduction of network will lead to network induced delay, data packet loss, communication constraints and other adverse factors, which will have adverse consequences on the performance of the control system. This makes the control system comprehensive analysis and research face a great challenge. In order to make it meet the real-time requirements, make full use of network resources. The research of event-based mechanism has attracted more and more attention. Based on the consideration of network-induced delay and data packet loss. In this paper, the controller design of network control system based on event-driven mechanism is studied. The detailed arrangement is as follows: firstly, the research progress and achievements of network control system based on event trigger mechanism are summarized. This paper introduces the research status of controller design of networked control system considering the characteristics of network-induced delay and packet loss. The main Lemma and symbolic explanation are given in this paper. Secondly. For the idealized networked control system with only network-induced delay and no data packet loss, an event-triggered communication strategy is introduced. The problem of controller design is studied, and the upper bound of maximum allowable communication delay in networked control system is considered. The corresponding closed-loop control model is obtained. A new Lyapunov-Krasovskii functional is constructed and the controller design of the time-delay NCSs is given. For the network control system with non-uniform packet loss, the problem of the loss compensation switching controller with event-driven mechanism is studied, and the characteristics of the non-uniform distribution of NCSs packet loss are considered. The closed loop system model of network control system based on event-driven mechanism is established by using different switching controllers in two cases, and a new Lyapunov-Krasovskii functional is constructed. The Jensen inequality method is used to analyze the relative stability, and the design of NCSs controller with non-uniform distribution of packet loss is given. Finally. The performance parameters of the control system and the influence of the network dynamic performance on the event triggering conditions are considered synthetically. The event trigger communication mechanism and the sampling error model of the network control system are given. The cooperative design method of event trigger control and controller feedback gain in networked control system is studied, which takes into account the packet loss and transmission delay of the network transmitter. In this paper, the H 鈭，

本文編號：1383556