共查询到19条相似文献,搜索用时 125 毫秒
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针对一类混合异质多智能体系统的分组一致性控制问题进行了研究。具体分析了由一阶智能体和二阶智能体组成的混合异质系统,研究其在离散情况下的分组一致性。基于两个合理的假设提出了线性控制协议,运用代数图论、稳定性理论和矩阵理论,分析协议作用下闭环系统的系统矩阵及动态特性,取得了系统渐近实现分组一致性的充分条件,该条件与系统拓扑结构、采样周期以及控制参数有关。结论同时适用于有向拓扑与无向拓扑,最后通过仿真实例对所得分析结果进行了验证。 相似文献
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针对在脉冲控制下非线性多智能体系统的分组一致性协同控制问题,本文基于复杂系统中智能体间的合作机制,提出了一种新颖的具有领导-跟随网络的分组一致性控制协议.该协议控制智能体仅在脉冲时刻接收来自邻居节点的信息并更新自己的状态,减少智能体因持续接收邻居信息更新自己状态而造成的网络开销.针对不同组之间智能体的信息交互,该协议具有防止组间干扰的机制,降低了不同组之间的通信干扰,提高系统鲁棒性.此外,本文还介绍了一种适用于非线性系统的方案,增强协议的适应性.基于实现分组一致性条件,构建了多智能体系统的动力学模型,并进行了协议的详细设计和理论推导.最后,通过仿真验证了协议的正确性和有效性. 相似文献
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运用控制理论,矩阵论及最小二乘等理论,研究了多智能体系统的分组一致性与系统通信拓扑图的拉普拉斯矩阵属于特征值0的特征向量之间的关系.给出了在线性协议控制下,系统达到一致性和分组一致性,其通信拓扑的设计方法.提出了一阶多智能体系统的总能量概念,并得到了系统在能量最省时通信拓扑的最优设计.仿真实例佐证本文主要结论的正确性. 相似文献
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研究了一类具有动态领导者的一阶多智能体系统的一致性问题。基于事件触发机制给出两种一致性协议,即集中式触发控制协议和分散式触发控制协议。利用李雅普诺夫稳定性理论和模型转化方法分别给出多智能体系统在两种协议作用下达到领导跟随一致的充分条件。同时,理论计算表明,系统在两种控制协议下均不存在Zeno行为。实例仿真结果验证了理论方案的有效性。 相似文献
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针对离散时间下基于切换拓扑多智能体系统一致性问题,设计出一种基于约束集虚拟邻居选取分布式一致性协议。该协议中,智能体采用通信扇区机制构造出虚拟邻居作为控制协议输入进行状态演化,并设计智能体调整因子的取值方式。在此基础上,智能体通过约束集保持初始通信拓扑的连接边来保证系统的连通性。最后,理论分析与大量仿真实例结合,与经典模型进行比较,验证了新的一致性协议的有效性,表明其可增强系统一致性,减少系统收敛的簇,并提高系统的一致性收敛速度。 相似文献
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为解决混合阶动态多智能体网络的拟平均一致性,将混合阶动态多智能体网络的拟平均一致性转化为增广的一阶多智能体网络的平均一致性,并给出相应一致性问题协议的定义,根据网络的拓扑结构连通性特点,运用代数图论、矩阵理论中的圆盘定理和李雅普诺夫理论证明了定拓扑和变拓扑无向网络下一致性协议的稳定性定理,并以由4个一阶智能体和2个二阶智能体所组成的混合阶智能体网络为例进行具体说明.理论研究和仿真结果都表明所提协议的正确性. 相似文献
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如何增强多智能体系统一致性收敛是其一致性研究的重要问题。提出了一种新的MHK(multi-agent-based Hegselmann-Krause)一致性协议,该协议将智能体间的公共邻居作为切换网络下多智能体分布式协作的重要调控因素。针对该协议下的多智能体系统设计了能量函数,分析并证明了该系统具有李雅普诺夫意义下的稳定性,将收敛为一个或多个子观点集群。数值仿真采用增量分析方法考察了系统所收敛的观点集群数量与初始拓扑区间长度的关系;实验表明,该协议使多智能体系统收敛为数量更少的观点集群。所提出的基于公共邻居的MHK一致性协议能够有效提高切换网络的连通性,从而增强系统的一致性收敛,并能为观点演化模型的控制与优化提供理论支撑。 相似文献
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针对由离散时间一阶和二阶智能体组成的混合阶多智能体系统,研究其在固定和切换拓扑结构下受通信时滞影响时的组一致性问题。分别为两类智能体提出组一致性协议,引入模型变换,将闭环系统转化为等价系统。在一定假设条件下,以代数图论、矩阵理论为主要研究工具,分别在固定和切换拓扑结构下给出了混合阶多智能体系统实现渐近组一致性的条件。采用数值仿真对所得结果的有效性进行了验证。 相似文献
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在切换网络下,针对具有未知且互不相同的非线性动态的多智能体系统,假设其未知的非线性动态可线性参数化,并运用自适应控制策略和牵制控制方法,提出了一种组一致性算法,使得多智能体系统在切换网络下达到组一致性。该算法仅仅依赖相邻智能体间的相对位置信息,基于Lyapunov理论、Barbalat引理、自适应控制理论及代数图论等理论,对该算法进行了稳定性分析和参数收敛分析。通过一个仿真实例验证了提出的算法有效性。 相似文献
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This paper investigates the consensus problem for linear multi-agent system with fixed communication topology in the presence of intermittent communication using the time-scale theory. Since each agent can only obtain relative local information intermittently, the proposed consensus algorithm is based on a discontinuous local interaction rule. The interaction among agents happens at a disjoint set of continuous-time intervals. The closed-loop multi-agent system can be represented using mixed linear continuous-time and linear discrete-time models due to intermittent information transmissions. The time-scale theory provides a powerful tool to combine continuous-time and discrete-time cases and study the consensus protocol under a unified framework. Using this theory, some conditions are derived to achieve exponential consensus under intermittent information transmissions. Simulations are performed to validate the theoretical results. 相似文献
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Guoguang Wen Chunyan Wang Zhi Chen Zhaoxia Peng 《International journal of control》2016,89(2):259-269
In this paper, the group consensus problems of heterogeneous multi-agent systems with fixed and switching topologies are investigated. First, a class of distributed group consensus protocol is proposed for achieving the group consensus of heterogeneous multi-agent systems by using the neighbours’ information. Then, some corresponding sufficient conditions are obtained to guarantee the achievement of group consensus. Rigorous proofs are given by using graph theory, matrix theory and Lyapunov theory. Finally, numerical simulations are also given to verify the theoretical analysis. 相似文献
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Leaderless consensus for the fractional-order nonlinear multi-agent systems is investigated in this paper. At the first part, a control protocol is proposed to achieve leaderless consensus for the nonlinear single-integrator multi-agent systems. At the second part, based on sliding mode estimator, a control protocol is given to solve leaderless consensus for the the nonlinear single-integrator multi-agent systems. It shows that the control protocol can improve the systems’ convergence speed. At the third part, a control protocol is designed to accomplish leaderless consensus for the nonlinear double-integrator multi-agent systems. To judge the systems’ stability in this paper, two classic continuous Lyapunov candidate functions are chosen. Finally, several worked out examples under directed interaction topology are given to prove above results. 相似文献
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In this article, we study distributed consensus of heterogeneous multi-agent systems with fixed and switching topologies. The analysis is based on graph theory and nonnegative matrix theory. We propose two kinds of consensus protocols based on the consensus protocol of first-order and second-order multi-agent systems. Some necessary and sufficient conditions that the heterogeneous multi-agent system solves the consensus problems under different consensus protocols are presented with fixed topology. We also give some sufficient conditions for consensus of the heterogeneous multi-agent system with switching topology. Simulation examples are provided to demonstrate the effectiveness of the theoretical results. 相似文献
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Hao Lili Zhan Xisheng Wu Jie Han Tao Yan Huaicheng 《International Journal of Control, Automation and Systems》2021,19(1):200-208
This paper deals with the fixed-time group consensus problem for multi-agent systems (MASs) subjected to exogenous disturbances. Firstly, two pinning control algorithms are constructed for MASs, which not only reduce the number of controllers but also achieve expected tracking consensus. Secondly, fixed-time group consensus is ensured by utilizing the algebraic graph theory, Lyapunov stability and fixed-time control technique. Finally, simulations are finally given for demonstrate the availability of the derived results.
相似文献19.
针对存在量化数据、通信时滞等通信约束以及带有竞争关系的多智能体系统, 研究其二分实用一致性问题, 提出了一种基于量化器的分布式控制协议. 该协议基于结构平衡拓扑假设, 通过规范变换将具有竞争关系系统转变为具有非负连接权重系统, 使二分实用一致性问题转变为一般实用一致性问题. 利用微分包含理论、菲利波夫解的框架、代数图论以及Lyapunov稳定性理论, 证明了在本文所提控制策略下, 具有竞争关系的多智能体系统能实现二分实用一致, 即智能体状态收敛至模相同但符号不同的可控区间, 并给出了误差收敛上界值. 仿真试验进一步验证了理论结果的有效性. 相似文献