计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
22期
130-135
,共6页
屈百达%陈龙%徐保国
屈百達%陳龍%徐保國
굴백체%진룡%서보국
网络控制系统%有限和不等式%线性矩阵不等式%锥补线性化迭代算法
網絡控製繫統%有限和不等式%線性矩陣不等式%錐補線性化迭代算法
망락공제계통%유한화불등식%선성구진불등식%추보선성화질대산법
Networked Control Systems(NCSs)%finite sum inequality%Linear Matrix Inequality(LMI)%cone complemen-tarity linearization algorithm
将网络控制系统建模为时变时滞系统模型,考虑有界、时变时延和丢包的网络控制系统的稳定性分析和控制器设计问题。首先构造一个新的分段Lyapunov-Krasovskii泛函,充分利用时延上下界信息,然后结合更紧的有限和不等式处理时滞区间,得到具有较小保守性的稳定性准则,基于一种改进的锥补线性化迭代算法给出状态反馈器设计方法,证明中没有引进模型变换和自由矩阵,减少了计算上的复杂性。通过实例表明上述方法的有效性。
將網絡控製繫統建模為時變時滯繫統模型,攷慮有界、時變時延和丟包的網絡控製繫統的穩定性分析和控製器設計問題。首先構造一箇新的分段Lyapunov-Krasovskii汎函,充分利用時延上下界信息,然後結閤更緊的有限和不等式處理時滯區間,得到具有較小保守性的穩定性準則,基于一種改進的錐補線性化迭代算法給齣狀態反饋器設計方法,證明中沒有引進模型變換和自由矩陣,減少瞭計算上的複雜性。通過實例錶明上述方法的有效性。
장망락공제계통건모위시변시체계통모형,고필유계、시변시연화주포적망락공제계통적은정성분석화공제기설계문제。수선구조일개신적분단Lyapunov-Krasovskii범함,충분이용시연상하계신식,연후결합경긴적유한화불등식처리시체구간,득도구유교소보수성적은정성준칙,기우일충개진적추보선성화질대산법급출상태반궤기설계방법,증명중몰유인진모형변환화자유구진,감소료계산상적복잡성。통과실례표명상술방법적유효성。
This paper is concerned with the problem of the stability analysis and controller design for networked control systems(NCSs)with bounded, time-varying network delays and data dropout by modeling the time-varying delay systems. Construct a new Lyapunov-Krasovskii functional and make full use of the information on the upper and lower bounds of the delay. A tighter finite sum inequality is presented to deal with delay interval. A less conservative stability criteria is derived. The state feedback controller design is obtained with an improved cone complementarity linearization algorithm. Since neither model transformation nor free-weighting matrices is employed in the derivation of these results, the proposed approach will reduce calculation. Numerical examples are given to illustract the effectiveness of the proposed method.