Quasi-synchronization of Lagrangian networks with parameter mismatches and communication delays via aperiodically intermittent pinning control

Quasi-synchronization of Lagrangian networks with parameter mismatches and communication delays via aperiodically intermittent pinning control
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通过非周期性间歇钉扎控制实现具有参数不匹配和通信延迟的拉格朗日网络的准同步

DOI:
10.1016/j.physa.2019.04.026
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发表时间:
2019-07
期刊:
Physica A
影响因子:
--
通讯作者:
张华
张华
中科院分区:
其他
文献类型:
--
作者:
马米花;蔡建平;张华

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研究了具有有向图的拉格朗日网络在非周期间歇钉住控制下的拟同步问题。不同于以往的研究,本文考虑了具有参数失配和通信延迟的拉格朗日网络。通过在不连续时间对一小部分主体进行线性反馈注入,拉格朗日系统描述的所有主体都可以准同步到期望的轨迹上。这意味着所提出的控制策略不是连续时间控制输入,并且不依赖于拉格朗日系统模型的知识。在非周期性间歇钉钉控制的基础上,导出了一些通用的同步准则。作为直接应用,详细讨论了具有参数不匹配和通信延迟的六双连杆旋转机械臂的准同步问题。不同钉钉方案的数值仿真结果表明了所提出控制策略的有效性和可行性。
Quasi-synchronization of Lagrangian networks with a directed graph via aperiodically intermittent pinning control was investigated in this paper. The Lagrangian networks with parameter mismatches and communication delays are considered, which is different from most of the existing works. By applying linear feedback injections to a fraction of agents at discontinuous time, all the agents described by Lagrangian systems can be quasi-synchronized to a desired trajectory. This means that the proposed control strategy is not continuous-time control input, and it is not relied on the knowledge of Lagrangian system models. Based on the aperiodically intermittent pinning control, some general synchronization criteria are derived. As a direct application, quasi-synchronization of six two-link revolute manipulators with parameter mismatches and communication delays is discussed in detail. Numerical simulations with different kinds of pinning schemes illustrate and visualize the effectiveness and feasibility of the proposed control strategy.
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