Robust fault estimator design for uncertain networked control systems with random time delays: An ILMI approach
Robust fault estimator design for uncertain networked control systems with random time delays: An ILMI approach
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DOI：
10.1016/j.ins.2009.10.002
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发表时间：
2010-02
期刊：
影响因子：
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通讯作者：
Dan Huang;S. Nguang
中科院分区：
文献类型：
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作者：
Dan Huang;S. Nguang
研究了一类具有随机通信网络诱导时延的不确定网络控制系统的鲁棒故障估计问题。基于Lyapunov-Razumikhin方法，利用双线性矩阵不等式的可解性，给出了时滞相关故障估计的存在性.提出了一种迭代算法，将非凸BMI问题转化为拟凸优化问题，利用现有的数学工具可以有效地求解。基于互联网的直流电机试验台验证了所提出的设计方法的有效性。
This paper investigates the problem of robust fault estimation for a class of uncertain networked control systems (NCSs) with random communication network-induced delays, which are described by Markov processes. Based on the Lyapunov–Razumikhin method, the existence of a delay-dependent fault estimator is given in terms of the solvability of bilinear matrix inequalities (BMIs). An iterative algorithm is proposed to change this non-convex BMI problem into quasi-convex optimization problems, which can be solved effectively by available mathematical tools. The effectiveness of the proposed design methodology is verified by an internet-based DC motor test rig.