發(fā)布時(shí)間：2018-07-24 20:45

【摘要】：大系統(tǒng)是一類復(fù)雜而又重要的非線性系統(tǒng),是目前控制理論研究的一個(gè)前沿方向.由于整個(gè)大系統(tǒng)的控制器設(shè)計(jì)比較復(fù)雜以及各子系統(tǒng)之間信號(hào)交換的物理限制,通常要求對(duì)每個(gè)子系統(tǒng)設(shè)計(jì)控制器.它僅用到局部可測(cè)量的信號(hào),使得整個(gè)系統(tǒng)跟蹤到給定的參考模型.最近控制器參考信號(hào)信息共享的嚴(yán)格分散自適應(yīng)控制系統(tǒng)受到廣泛關(guān)注.然而,目前的已有結(jié)果,作者沒有很好地解決嚴(yán)格分散系統(tǒng)自適應(yīng)控制問題.另一方面,時(shí)滯互聯(lián)大系統(tǒng)的模型跟蹤控制問題沒有涉及.該論文在以前文獻(xiàn)的基礎(chǔ)上,針對(duì)嚴(yán)格分散自適應(yīng)控制問題做了一些理論研究,包括以下兩個(gè)部分:1)具有三種形式互聯(lián)項(xiàng)的嚴(yán)格分散大系統(tǒng)的自適應(yīng)模型跟蹤控制問題.研究了三類互聯(lián)型的大系統(tǒng),當(dāng)互聯(lián)項(xiàng)通過狀態(tài)實(shí)現(xiàn)時(shí),我們同時(shí)考慮了線性與非線性互聯(lián)的情形.當(dāng)互聯(lián)項(xiàng)通過輸出實(shí)現(xiàn)時(shí),我們考慮傳遞函數(shù)相對(duì)階是1的情形.最后,仿真算例驗(yàn)證了結(jié)果的正確性和可行性.2)互聯(lián)項(xiàng)帶有時(shí)滯的大系統(tǒng)分散自適應(yīng)模型跟蹤問題.研究了具有兩種類型的時(shí)滯互聯(lián)函數(shù)的互聯(lián)大系統(tǒng),并對(duì)這兩種情況分別設(shè)計(jì)控制器與對(duì)應(yīng)的自適應(yīng)律.得到這樣兩種結(jié)論:對(duì)時(shí)滯導(dǎo)數(shù)小于1的互聯(lián)系統(tǒng),相應(yīng)的跟蹤誤差是一致最終有界的;對(duì)時(shí)滯導(dǎo)數(shù)為任意數(shù)的互聯(lián)系統(tǒng),跟蹤誤差收斂到一個(gè)任意小的球中.
[Abstract]:Large-scale systems are a class of complex and important nonlinear systems, which is a forward direction of control theory research. Because of the complexity of the controller design and the physical limitation of the signal exchange between the subsystems, it is usually required to design the controller for each subsystem. It uses only locally measurable signals to track the system to a given reference model. Recently, the strict decentralized adaptive control system with controller reference signal information sharing has received wide attention. However, the author has not solved the problem of strict decentralized adaptive control. On the other hand, model tracking control for interconnected large scale systems with time delay is not involved. Based on the previous literatures, this paper makes some theoretical studies on the strictly decentralized adaptive control problem, including the following two parts: 1) Adaptive model tracking control problem for strictly decentralized large-scale systems with three forms of interconnected terms. In this paper, we study three kinds of interconnected large-scale systems. When the interconnected terms are realized through the state, we consider the linear and nonlinear interconnections at the same time. When the interconnected term is implemented by output, we consider the case where the relative order of the transfer function is 1. Finally, a simulation example is given to verify the correctness and feasibility of the results. 2) the decentralized adaptive model tracking problem for large scale systems with time delay is proved. In this paper, the interconnected large-scale systems with two types of time-delay interconnected functions are studied, and the controller and the corresponding adaptive law are designed for the two cases respectively. Two conclusions are obtained: for interconnected systems with time-delay derivatives less than 1, the corresponding tracking errors are uniformly and ultimately bounded, and for interconnected systems with time-delay derivatives of any number, the tracking errors converge to an arbitrary small sphere.
【學(xué)位授予單位】：曲阜師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：N941.4;O231

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

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2 ;Decentralized adaptive fuzzy control of time-delayed interconnected systems with unknown backlash-like hysteresis[J];Journal of Systems Engineering and Electronics;2008年06期

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本文編號(hào)：2142603