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

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

【摘要】：針對大型土木工程結(jié)構(gòu),研究了具有完整性的小增益分散穩(wěn)定化容錯控制問題,考慮子控制系統(tǒng)關(guān)聯(lián)項及系統(tǒng)中傳感器與作動器出現(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于一組線性矩陣不等式的可行性問題。進而,通過建立和求解一個凸優(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)定化容錯狀態(tài)反饋控制律的設(shè)計方法,所得到的子系統(tǒng)控制器能保持全局漸進穩(wěn)定。針對ASCE 9層benchmark模型,該文分別從部分獨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、作動器失效及傳感器作動器均失效工況的分散控制設(shè)計與數(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,且無需更多的控制能量;相對于集中控制,重疊分散控制系統(tǒng)具有更高的可靠性;在發(fā)生故障時,具有完整性的分散穩(wěn)定化容錯控制(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】： 湖南大學土木工程學院;廣州大學工程抗震研究中心;
【基金】：國家973項目(2012BAJ07B02) 國家自然科學基金項目(97315301-07,51408142) 教育部創(chuàng)新團隊項目(IRT13057)
【分類號】：TP273;TU311.3
【正文快照】： 主動、半主動和智能振動控制技術(shù)可以有效減小建筑結(jié)構(gòu)在地震或風荷載作用下的振動響應(yīng)[1 2]。然而,對于大型結(jié)構(gòu),傳統(tǒng)集中控制將使得整個控制系統(tǒng)信息交換異常復雜且極易造成滯后,從而導致控制系統(tǒng)集成和運行成本提高,系統(tǒng)的可靠性降低[3];另外,一旦個別傳感器或作動器發(fā)生，

本文編號：1404734