發(fā)布時間：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前沿方向.由于整個大系統(tǒng)的控制器設(shè)計比較復(fù)雜以及各子系統(tǒng)之間信號交換的物理限制,通常要求對每個子系統(tǒng)設(shè)計控制器.它僅用到局部可測量的信號,使得整個系統(tǒng)跟蹤到給定的參考模型.最近控制器參考信號信息共享的嚴格分散自適應(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格分散系統(tǒng)自適應(yīng)控制問題.另一方面,時滯互聯(lián)大系統(tǒng)的模型跟蹤控制問題沒有涉及.該論文在以前文獻的基礎(chǔ)上,針對嚴格分散自適應(yīng)控制問題做了一些理論研究,包括以下兩個部分:1)具有三種形式互聯(lián)項的嚴格分散大系統(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)項通過狀態(tài)實現(xiàn)時,我們同時考慮了線性與非線性互聯(lián)的情形.當(dāng)互聯(lián)項通過輸出實現(xiàn)時,我們考慮傳遞函數(shù)相對階是1的情形.最后,仿真算例驗證了結(jié)果的正確性和可行性.2)互聯(lián)項帶有時滯的大系統(tǒng)分散自適應(yīng)模型跟蹤問題.研究了具有兩種類型的時滯互聯(lián)函數(shù)的互聯(lián)大系統(tǒng),并對這兩種情況分別設(shè)計控制器與對應(yīng)的自適應(yīng)律.得到這樣兩種結(jié)論:對時滯導(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;對時滯導(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)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：N941.4;O231

【參考文獻】

相關(guān)期刊論文 前2條

1 ;Decentralized Robust Control for Large Scale Interconnected Uncertain Systems with Time delay[J];Journal of Central South University of Technology(English Edition);2000年01期

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：2142603