本文關(guān)鍵詞：大型結(jié)構(gòu)小增益分散穩(wěn)定化容錯(cuò)控制研究　出處：《工程力學(xué)》2017年06期 　論文類型：期刊論文

  更多相關(guān)文章： 分散控制 容錯(cuò)控制 小增益 穩(wěn)定化 完整性 LMI

【摘要】：針對(duì)大型土木工程結(jié)構(gòu),研究了具有完整性的小增益分散穩(wěn)定化容錯(cuò)控制問題,考慮子控制系統(tǒng)關(guān)聯(lián)項(xiàng)及系統(tǒng)中傳感器與作動(dòng)器出現(xiàn)故障的情況,利用Lyapunov穩(wěn)定性理論及線性矩陣不等式方法,給出了離散時(shí)滯關(guān)聯(lián)系統(tǒng)分散鎮(zhèn)定的充分條件,并證明了該條件等價(jià)于一組線性矩陣不等式的可行性問題。進(jìn)而,通過建立和求解一個(gè)凸優(yōu)化問題,提出了具有完整性的小反饋增益參數(shù)分散穩(wěn)定化容錯(cuò)狀態(tài)反饋控制律的設(shè)計(jì)方法,所得到的子系統(tǒng)控制器能保持全局漸進(jìn)穩(wěn)定。針對(duì)ASCE 9層benchmark模型,該文分別從部分獨(dú)立分散控制和重疊分散控制角度研究分析了正常工況、傳感器失效、作動(dòng)器失效及傳感器作動(dòng)器均失效工況的分散控制設(shè)計(jì)與數(shù)值分析。結(jié)果表明,該文提出的小增益分散穩(wěn)定化控制(LMI-SGDSC)算法能獲得與集中控制策略接近的控制效果,且無(wú)需更多的控制能量;相對(duì)于集中控制,重疊分散控制系統(tǒng)具有更高的可靠性;在發(fā)生故障時(shí),具有完整性的分散穩(wěn)定化容錯(cuò)控制(LMI-SGFTDSC)具有較好的控制效果。
[Abstract]:For large civil engineering structures, the small gain with the integrity of the decentralized control problem of fault-tolerant stabilization, considering the sensor control system and related system with actuator fault conditions, using the method of Lyapunov stability theory and linear matrix inequality, a sufficient condition for decentralized stabilization for discrete time-delay systems is given and proved related. The feasibility of this condition is equivalent to a set of linear matrix inequalities. Then, by establishing and solving a convex optimization problem, put forward with the integrity of the small feedback gain parameter design method of decentralized control law for stabilizing state feedback fault-tolerant subsystem, the proposed controller can maintain global asymptotic stability. According to ASCE 9 the benchmark model, this paper respectively from the part of the independent decentralized control and overlap control perspective to analyze normal dispersion conditions, sensor failure, actuator Sensor failure and dispersion analysis design and numerical control actuator failure conditions. The results show that the decentralized stabilization control of small gain of the proposed (LMI-SGDSC) algorithm can achieve centralized control strategy and control effect of close, and there is no need to control more energy; relative to the centralized control, overlapping decentralized control system is reliable higher; in the event of failure, the decentralized stabilization of fault tolerant control possessing integrity (LMI-SGFTDSC) has a good control effect.

【作者單位】： 湖南大學(xué)土木工程學(xué)院;廣州大學(xué)工程抗震研究中心;
【基金】：國(guó)家973項(xiàng)目(2012BAJ07B02) 國(guó)家自然科學(xué)基金項(xiàng)目(97315301-07,51408142) 教育部創(chuàng)新團(tuán)隊(duì)項(xiàng)目(IRT13057)
【分類號(hào)】：TP273;TU311.3
【正文快照】： 主動(dòng)、半主動(dòng)和智能振動(dòng)控制技術(shù)可以有效減小建筑結(jié)構(gòu)在地震或風(fēng)荷載作用下的振動(dòng)響應(yīng)[1 2]。然而,對(duì)于大型結(jié)構(gòu),傳統(tǒng)集中控制將使得整個(gè)控制系統(tǒng)信息交換異常復(fù)雜且極易造成滯后,從而導(dǎo)致控制系統(tǒng)集成和運(yùn)行成本提高,系統(tǒng)的可靠性降低[3];另外,一旦個(gè)別傳感器或作動(dòng)器發(fā)生，

本文編號(hào)：1404734