检索结果-南通市图书馆

Chinese Physics B 2021年第3期30卷 119-128页

作者：樊英杰王震夏建伟沈浩 College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266590China College of Mathematics and Systems Science Shandong University of Science and TechnologyQingdao 266590China School of Mathematical Science Liaocheng UniversityLiaocheng 252059China College of Electrical and Information Engineering Anhui University of TechnologyMa’anshan 243032China

This paper is concerned with the global stabilization of state-dependent switching neural networks(SDSNNs)viadiscontinuous event-triggered control with network-induced Communication delay.Aiming at decreasing triggering times,a discontinuous event-trigger scheme is utilized to determine whether the sampling information is required to be sent outor not.Meanwhile,under the effect of Communication delay,the trigger condition and SDSNNs are transformed into twotractable models by designing a fictitious delay function.Then,using the Lyapunov–Krasovskii stability theory,someinequality estimation techniques,and extended reciprocally convex combination method,two sufficient criteria are established for ensuring the global stabilization of the resulting closed-loop SDSNNs,respectively.A unified framework isderived that has the ability to handle the simultaneous existence of the Communication delay,the properties of discontinuousevent-trigger scheme,as well as feedback controller design.Additionally,the developed results demonstrate a quantitativerelationship among the event trigger parameter,Communication delay,and triggering times.Finally,two numerical examples are presented to illustrate the usefulness of the developed stabilization scheme.

关键词： global stabilization state-dependent switching neural networks discontinuous event-trigger scheme Communication delay

Successive lag synchronization on dynamical networks with Communication delay

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2016年第3期25卷 466-472页

作者：张新建韦爱举李科赞 School of Mathematics and Computing Science Guangxi Key Laboratory of Cryptography and Information SecurityGuilin University of Electronic Technology

In this paper, successive lag synchronization （SLS） on a dynamical network with Communication delay is investigated. In order to achieve SLS on the dynamical network with Communication delay, we design linear feedback control and adaptive control, respectively. By using the Lyapunov function method, we obtain some sufficient conditions for global stability of SLS. To verify these results, some numerical examples are further presented. This work may find potential applications in consensus of multi-agent systems.

关键词： successive lag synchronization dynamical network Communication delay feedback control

Generalized Consensus of Discrete-Time Multi-Agent Systems with Directed Topology and Communication delay

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2020年第6期33卷 1903-1913页

作者： LIU Huwei CHEN Xin GUO Liuxiao HU Aihua School of Science Jiangnan UniersityWuzi 214122China

Compared with traditional consensus,this paper studies the generalized consensus problem for discrete-time multi-agent systems with directed topology and Communication delay.Novel distributed consensus protocols with and without Communication delay are designed.Based on the analysis of error dynamical system and graph theory,the generalized consensus is globally asymptotically achieved under suitable conditions without changing the zero row-sums property of Laplacian matrix in networks.Moreover,the sufficient conditions for generalized consensus of Communication delay are obtained under directed connections.Finally,some simulations have been provided to verify the theoretical results.

关键词： Communication delay connection topology discrete-time multi-agent systems generalized consensus

Consensus on Intervals of Communication delay

在线全文

学校读者我要写书评

暂无评论

International Journal of Automation and computing 2018年第1期15卷 13-24页

作者： Heitor J.Savino Fernando O.Souza Luciano C.A.Pimenta Graduate Program in Electrical Engineering Federal University of Minas Gerais Institute of Computing Federal University of Alagoas Department of Electronic Engineering Federal University of Minas Gerais

This paper brings out a structured methodology for identifying intervals of communication time-delay where consensus in directed networks of multiple agents with high-order integrator dynamics is achieved. It is built upon the stability analysis of a transformed consensus problem which preserves all the nonzero eigenvalues of the Laplacian matrix of the associated communication topology graph. It is shown that networks of agents with first-order integrator dynamics can be brought to consensus independently of Communication delay, on the other hand, for agents with second-order integrator dynamics, the consensus is achieved independently of Communication delay only if certain conditions axe satisfied. Conversely, if such conditions axe not satisfied, it is shown how to compute the intervals of Communication delay where multiple agents with second-order or higher-order can be brought to consensus. The paper is ended by showing an interesting example of a network of agents with second-order integrator dynamics which is consensable on the first time-delay interval, but as the time-delay increases, it loses consensability on the second time-delay interval, then it becomes consensable again on the third time-delay interval, and finally it does not achieve consensus any more on the fourth time-delay interval. This example shows the importance of analyzing consensus with time-delay in different intervals.

关键词： Time delay systems multi-agent systems consensus Communication delay roots location.

Consensus Seeking for Discrete-time Multi-agent Systems with Communication delay

在线全文

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2015年第2期2卷 151-157页

作者： Zhenhua Wang Juanjuan Xu Huanshui Zhang School of Control Science and Engineering Shandong University

This paper studies the consensus problem for discrete-time multi-agent systems of first-order in the presence of constant Communication delay. Provided that the agent dynamics is unstable and the network topology is undirected, effects of two kinds of Communication delays on consensus are investigated.When the relative information is affected by delay, we show that the effect of delay can be alleviated by using the historical input information in the protocol design. On the other hand, if the Communication delay only influences the actually transmitted information, sufficient condition admitting any large yet bounded delay for consensus is obtained, and the delay in this case is allowed to be unknown and time-varying. Finally, simulation results are provided to demonstrate the effectiveness of the theoretical results.

关键词： Multi-agent systems consensus protocol Communication delay eigenratio

Impacts of Communication delay on vehicle platoon string stability and its compensation strategy:A review

在线全文

学校读者我要写书评

暂无评论

Journal of Traffic and Transportation Engineering(English Edition) 2023年第4期10卷 508-529页

作者： Yuqin Zhang Zhihang Xu Zijian Wang Xinpeng Yao Zhigang Xu School of Information Engineering Chang'an UniversityXian 710064China Shandong Key Laboratory of Smart Transportation Jinan 250000China

Based on the four-element model,this paper reviewed the important research progress in vehicle platoon,compared the advantages and disadvantages of different models in each element longitudinally,and summarized the linkage between each element horizontally.The stability criteria are briefly reviewed from three dimensions:local stability,string stability,and traffic flow stability.The impact of Communication delay on vehicle platoon is quantitatively summarized from two aspects:the variation of controller gains and the variation of headway time values.Aiming at the inevitable Communication delay in vehicle platoon,the compensation strategies are analyzed from five levels.(1)Optimizing the communication network structure.(2)Reconstructing acceleration information.(3)Tuning controller gains.(4)Constructing a multi-branch selection structure.(5)Improving the controller.The results show that,although these compensation strategies can alleviate the negative impact of Communication delay to a certain extent,they also have some defects such as difficulty in adapting to complex and various real road conditions,poor accuracy and real-time performance,insufficient security,and limited application scenarios.It is necessary to further improve the accuracy and real-time performance of the device,design an encrypted and scalable network architecture to ensure communication security and adaptability,and conduct further real vehicle testing.

关键词： Traffic engineering Vehicle platoon CACC Communication delay Compensation strategy Stability

Consensus for high-order multi-agent systems with Communication delay

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2017年第9期60卷 241-252页

作者： Zhenhua WANG Huanshui ZHANG Minyue FU Huaxiang ZHANG School of Information Science and Engineering Shandong Normal University Institute of Data Science and Technology Shandong Normal University School of Control Science and Engineering Shandong University School of Electrical Engineering and Computer Science University of Newcastle School of Automation Guangdong Key Laboratory of Io T Information TechnologyGuangdong University of Technology

In this study, consensus problem for general high-order multi-agent systems with Communication delay is investigated. Given the unstable agent dynamics and a known Communication delay, two consensus protocols are designed to guarantee consensus over undirected network. By jointly researching the effects of agent dynamics and network topology, allowable delay bounds depending on the maxima of concave functions are easy to calculate. Especially, the maximum delay bound is derived when the network topology is completely connected. The main approach for the same involves designing the control gains on the basis of the solution of a parametric algebraic Riccati equation. Finally, the theoretical results are demonstrated via numerical simulations.

关键词： consensus Communication delay historical input information parametric algebraic Riccati equa tion eigenratio

Time-event hybrid-triggered control for vehicle platoons with Communication delay

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Time-event hybrid-triggered control for vehicle platoons wit...

Distributed PID Controller Design and Stability Analysis for the Vehicle Platoon with Communication delay and Input delay

第40届中国控制会议

作者： Xingwen Chen Maode Yan Panpan Yang Xiaomin Liu School of Electronics and Control Engineering Chang’an University

This paper concentrates on the time-event hybrid-triggered control of vehicle platoons with Communication delay.To improve the control performance and reduce data transmission, the time-event hybrid-triggered scheme is firstly designed in the platoon system where random variables satisfying Bernoulli distribution are used to describe the switch law of the sampling scheme. Then, a vehicle platoon model involving the network-induced delay is constructed. By deploying the Lyapunov theorem and linear matrix inequalities（LMIs）, sufficient conditions are established to guarantee the stability of vehicle platoons under the hybrid-triggered mechanism. Finally, simulations are provided to verify the effectiveness of the theoretical results.

关键词： Time-event hybrid-triggered control Vehicle platoons Communication delay State feedback controller

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Distributed PID Controller Design and Stability Analysis for...

Cascade Control of Spacecraft Formation with Communication delay

第40届中国控制会议

作者： Xu Zhu Zehua Zhang School of Electronic and Control Engineering Chang’an University

Communication delay and input delay degrade the performance and robustness of the vehicle platoon, even resulting in instability. In this paper, a distributed proportion-integral-derivative（PID） controller is designed to enhance the robustness of the vehicle platoon with these two delays, and the exact time delay margins（ETDMs） are obtained by employing the cluster treatment of characteristic roots（CTCR） paradigm. Firstly, the strong stability condition with respect to the PID controller gains is obtained to guarantee the existence of the ETDMs. Secondly, we propose a way of obtaining the upper bound of the Communication delay and limiting the ETDMs to a small delay region, which enormously reduces the computational burden of calculating the ETDMs via the CTCR paradigm. Finally, simulation results illustrate the effectiveness and superiority of our proposed method.

关键词： Vehicle platoon Communication delay Input delay Distributed PID controller Exact time delay margins

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Cascade Control of Spacecraft Formation with Communication D...