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Journal of Systems Science & Complexity 2020年第5期33卷 1446-1468页

作者： zhang duanjin zhang Yinshuang School of Information Engineering Zhengzhou UniversityZhengzhou 450001China

This paper utilizes a switched systems approach to deal with the problem of fault detectio for uncertain delta operator networked control system with packet dropouts and timevarying *** exist in the matrices of the systems and are norm-bounded *** parts of packet dropouts are considered in this paper:From sensors to controllers,and from controllers to *** independent Bernoulli distributed white sequences are introduced to account for packet *** an FD filter is designed under an arbitrary switching ***,the sufficient conditions for the NCSs under consideration that are exponentially stable in the mean-square sense and satisfy H∞performance are obtained in terms of linear matrix inequalitie,multiple Lyapunov function and average dwell-tim *** explicit expression of the desired filter parameters is ***,a numerical example verifies the effectiveness of the proposed method.

关键词： Delta operator fault detection networked control systems packet dropouts switched systems

Robust fault detection for delta operator switched fuzzy systems with bilateral packet losses

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Journal of Systems Engineering and Electronics 2023年第1期34卷 214-223页

作者： FAN Yamin zhang duanjin School of Information Engineering Zhengzhou UniversityZhengzhou 450001China

Considering packet losses, time-varying delay, and parameter uncertainty in the switched fuzzy system, this paper designs a robust fault detection filter at any switching rate and analyzes the H∞ performance of the system. Firstly, the Takagi-Sugeno(T-S) fuzzy model is used to establish a global fuzzy model for the uncertain nonlinear time-delay switched system,and the packet loss process is modeled as a mathematical model satisfying Bernoulli distribution. Secondly, through the average dwell time method and multiple Lyapunov functions, the exponentially stable condition of the nonlinear network switched system is given. Finally, specific parameters of the robust fault detection filter can be obtained by solving linear matrix inequalities(LMIs). The effectiveness of the method is verified by simulation results.

关键词： switched fuzzy system robust fault detection timevarying delay bilateral packet losses uncertainty average dwell time method

Fault Detection of Delta Operator Formulated Networked Control Systems 25th

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Fault Detection of Delta Operator Formulated Networked Contr...

第25届中国控制与决策会议

作者： duanjin zhang Hucheng Zhou School of Information Engineering Zhengzhou University

ISBN: (纸本)9781467355339

This paper is concerned with the problem of fault detection for networked control systems （NCS） with uncertain time-delay. By using delta operator, a new model is proposed. Then, based on the traditional robust fault detection filter and linear matrix inequality （LMI） approach, the system fault detection can be converted to the solution of the robust control problem. The sufficient conditions for the existence of the gain of observer are given in terms of LMI approach. Finally, a numerical example is provided to show the effectiveness of the proposed design method.

关键词： networked control systems fault detection delta operator linear matrix inequality

Fault Detection for Networked Control Systems with Two-channel Packet Dropouts using Delta Operator

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Fault Detection for Networked Control Systems with Two-chann...

第37届中国控制会议

作者： Yinshuang zhang duanjin zhang School of Information Engineering Zhengzhou University

This paper addresses the problem of fault detection for networked control systems（NCSs） with two-channel packet dropouts and time-varying delays via delta operator. Packet dropouts exist in both channels from sensors to controllers and from controllers to actuators, and utilize two independent Bernoulli random variables to represent it. Then the system with packet dropouts and time-varying delays is modeled as a networked switched system. A design scheme of fault detection filter is proposed under an arbitrary switching law. Furthermore, sufficient conditions that the switched system is exponentially stable in the mean-square sense are developed by means of linear matrix inequalities（LMI）, Lyapunov-Krasovskii functional and average dwell-time（ADT） approach. The minimal H disturbance attenuation level is also achieved. Finally, a numerical example is given to illustrate the effectiveness of the proposed method.

关键词： Networked control systems fault detection packet dropouts time-varying delays delta operator

H∞ Filtering for Network-Based Systems with Time-Varying Delay

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H∞ Filtering for Network-Based Systems with Time-Varying De...

2015年中国智能自动化学术会议

作者： duanjin zhang Xiaojing Jie School of Information Engineering Zhengzhou University

This paper is concerned with the problem of H-infinity filtering for network-based systems with time-varying *** performance analysis of network-based H-infinity filtering-error systems is proposed by constructing a suitable Lyapunov-Krasovskii functional which can retain some useful time-delay terms.A sufficient condition of exponential stability for filtering error system is derived in terms of linear matrix inequality approach,and the design method of H-infinity filter is also given.A numerical example shows the effectiveness of the proposed approach.

关键词： Time-varying delay H∞filtering Networked control systems Linear matrix inequality approach

H∞Fault Detection of Networked Control Systems with Multi-packet Transmission and Random Delay using Delta Operator

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H∞Fault Detection of Networked Control Systems with Multi-p...

第32届中国控制与决策会议

作者： duanjin zhang Yu Luan School of Information Engineering Zhengzhou University

The H fault detection problem for networked control systems with multi-packet transmission and random delay is *** paper converts multi-packet transmission circumstance to a discrete-time switched system,and a delta-based fault detection filter is built for high-speed sampling *** paper transformed fault detection problem into finding appropriate parameters of the foundered *** linear matrix inequality(LMI) method and Lyapunov-Krasinskii stability theory,the designed H fault detection filter’s stability conditions are *** last,a numerical simulation example is shown to demonstrate the availability of the method.

关键词： Networked control systems Multi-packet transmission Random delay H∞ fault detection Delta operator

H∞ Filtering for Stochastic Networked Control Systems with Time Delays and Packet Dropout

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H∞ Filtering for Stochastic Networked Control Systems with ...

第32届中国控制与决策会议

作者： duanjin zhang Nartey George School of Information Engineering Zhengzhou University

In this paper,the problem of H∞ filtering for a stochastic control system integration with packet dropout and time delays is *** address time delays and packet dropouts by introducing a mathematical model to reconstruct random occurring communication delays between multiple systems whereby the output results from multiple system transmission is equivalent to the input *** reconstruction is based on unknown discrete signal sampling from incomplete linear measurement with only the output considered and *** mathematical model is based on re-sampling with instances anticipation of each time delay *** on the computational complexity,a sufficient augmentation approach is considered to guarantee stability and the input signal gets as near as possible in the *** results suggest that the proposed H∞ filtering design for addressing stochastic time delay and data dropout factors is suitable for reconstruction.

关键词： H∞ filtering Packet dropout Time delay Networked control systems(NCSs)

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基于Delta算子的自适应信号处理

系统工程与电子技术 2001年第5期23卷 4-7页

作者：张端金吴捷华南理工大学电力学院广州510640

Delta算子方法是信号处理与控制理论交叉学科的前沿研究领域之一 ,在高速信号处理和数字控制设计方面具有广阔的应用前景。简要综述了Delta算子理论在自适应信号处理中的应用现状与存在问题 ,涉及基于Delta算子的模型描述与稳定性分析... 详细信息

Delta算子方法是信号处理与控制理论交叉学科的前沿研究领域之一 ,在高速信号处理和数字控制设计方面具有广阔的应用前景。简要综述了Delta算子理论在自适应信号处理中的应用现状与存在问题 ,涉及基于Delta算子的模型描述与稳定性分析、自适应滤波与估计、自适应算法性能分析与实现以及 2D信号处理等方面。最后指出了有待进一步研究的课题方向。

关键词：离散分布自适应信号处理数据控制器 Delta算子

通信受限不确定Delta算子网络系统H_∞滤波

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系统工程与电子技术 2017年第8期39卷 1864-1870页

作者：张端金高晓蓓郑州大学信息工程学院河南郑州450001

研究了一类基于Delta算子的通信受限条件下参数不确定网络系统H∞滤波问题。在通信受限条件下,采用通信序列对网络控制系统进行分析,构建Delta算子描述的不确定系统滤波误差模型。利用线性矩阵不等式和Lyapunov-Krasovskii泛函提出滤波... 详细信息

研究了一类基于Delta算子的通信受限条件下参数不确定网络系统H∞滤波问题。在通信受限条件下,采用通信序列对网络控制系统进行分析,构建Delta算子描述的不确定系统滤波误差模型。利用线性矩阵不等式和Lyapunov-Krasovskii泛函提出滤波误差系统渐近稳定的充分条件,证明了系统的H∞性能,并给出滤波器的设计方法。数值仿真结果验证了所提方法的有效性。

关键词：不确定系统 H∞滤波通信受限 Delta算子

具有双通道数据包丢失的Delta算子系统故障检测

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信息与控制 2019年第3期48卷 302-309页

作者：张端金张银双郑州大学信息工程学院河南郑州450001 郑州大学产业技术研究院河南郑州450001

研究同时存在双通道数据包丢失和时变时延的Delta算子网络控制系统(NCSs)故障检测问题.假定数据包丢失发生在控制器到执行器、传感器至控制器的数据传输过程中,并且利用两个相互独立的伯努利随机变量描述是否发生丢包.将上述的NCSs建模... 详细信息

研究同时存在双通道数据包丢失和时变时延的Delta算子网络控制系统(NCSs)故障检测问题.假定数据包丢失发生在控制器到执行器、传感器至控制器的数据传输过程中,并且利用两个相互独立的伯努利随机变量描述是否发生丢包.将上述的NCSs建模为网络切换系统,提出任意切换律下故障检测滤波器的设计方法.利用线性矩阵不等式(LMIs)方法、Lyapunov-Krasovskii泛函和平均驻留时间等得出所考虑的网络切换系统具备指数均方稳定性的充分条件.证明了所用的网络切换系统满足H∞性能,并推导出了滤波器参数的显式表达.数值仿真结果验证了所提方法的有效性.

关键词：网络控制系统故障检测数据包丢失时变时延 Delta算子