本文選題：切換系統(tǒng) + 傳感器故障��； 參考：《沈陽航空航天大學(xué)》2017年碩士論文

【摘要】：人類工業(yè)化進(jìn)程的快速發(fā)展使得科研工作者對(duì)先進(jìn)控制技術(shù)的探索永無止境。在生產(chǎn)實(shí)踐和工程應(yīng)用中,兩類控制問題正日益受到自動(dòng)化技術(shù)研究者的關(guān)注:容錯(cuò)控制和無擾切換。在實(shí)際工程中,突發(fā)的故障常困擾著傳統(tǒng)控制系統(tǒng),甚至?xí)䦷頌?zāi)難性后果。由此,容錯(cuò)控制一直是控制研究領(lǐng)域的熱點(diǎn)問題。容錯(cuò)控制的運(yùn)用不僅改善實(shí)際系統(tǒng)的穩(wěn)定性,更保證了安全性。針對(duì)傳感器故障下的切換控制系統(tǒng),本文對(duì)切換系統(tǒng)的容錯(cuò)無擾切換控制問題進(jìn)行了系統(tǒng)研究。由于實(shí)際工程中的復(fù)雜性,單一的控制系統(tǒng)很難獲得滿意的控制效果,所以切換控制技術(shù)在工程中被廣泛采用──為達(dá)到不同的控制效果設(shè)定多個(gè)控制器,并在此間進(jìn)行切換。本文采用的切換系統(tǒng)的容錯(cuò)控制框架,就是通過在非故障和針對(duì)故障設(shè)計(jì)的子控制器間切換來實(shí)現(xiàn)系統(tǒng)的故障容錯(cuò)性能。此外,雖然切換控制的運(yùn)用可大幅提升系統(tǒng)性能,但也帶來了一些問題,如在控制器切換的瞬間,不連續(xù)的控制輸入會(huì)嚴(yán)重影響系統(tǒng)性能甚至穩(wěn)定性。因此,在切換容錯(cuò)框架下,如何實(shí)現(xiàn)無擾切換成為一項(xiàng)亟待解決的重要問題。本文基于滑�？刂评碚摲謩e設(shè)計(jì)了三類無擾切換補(bǔ)償器,使得在控制器切換前,離線控制器的輸出可以跟隨在線控制器的輸出,從而保證了系統(tǒng)在切換瞬間控制輸入的平滑性。本文的研究?jī)?nèi)容主要包括:1.傳感器失效下的切換系統(tǒng)容錯(cuò)無擾切換控制;2.基于故障觀測(cè)器的切換系統(tǒng)容錯(cuò)無擾切換控制;3.切換模糊系統(tǒng)的容錯(cuò)無擾切換控制。
[Abstract]:With the rapid development of human industrialization, there is no end to the exploration of advanced control technology. In production practice and engineering application, two kinds of control problems are being paid more and more attention by automation technology researchers: fault-tolerant control and undisturbed switching. In practical engineering, sudden failure often puzzles the traditional control system, and even brings disastrous consequences. Therefore, fault-tolerant control has always been a hot issue in the field of control research. The application of fault-tolerant control not only improves the stability of the actual system, but also ensures the security. In this paper, the problem of fault-tolerant and unperturbed switching control is studied systematically for the switch control system with sensor fault. Because of the complexity of practical engineering, it is very difficult for a single control system to obtain satisfactory control effect, so switching control technology is widely used in engineering, that is, to set up multiple controllers to achieve different control effects, and to switch here. The fault-tolerant control framework used in this paper is to achieve the fault-tolerant performance of the system by switching between non-fault and fault-specific sub-controllers. In addition, although the application of switching control can greatly improve the performance of the system, it also brings some problems, such as the discontinuous input of control will seriously affect the performance and even stability of the system. Therefore, in the framework of handoff fault-tolerant, how to achieve undisturbed handoff becomes an important problem to be solved. Based on the sliding mode control theory, three kinds of disturbance free switching compensators are designed in this paper, so that the output of the off-line controller can follow the output of the on-line controller before switching, thus ensuring the smoothness of the control input in the switching moment. The research content of this paper mainly includes: 1. The fault-tolerant and undisturbed switching control of the switch system with sensor failure is 2. Fault observer-based fault-tolerant and-disturbance-free switching control for switched systems Fault-tolerant and unperturbed switching control for switched fuzzy systems.
【學(xué)位授予單位】：沈陽航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP273

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