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arXiv 2107.04056math.OCcs.SYeess.SY
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权值不平衡有向网络上二阶不确定非线性系统的最优输出一致性

Optimal Output Consensus of Second-Order Uncertain Nonlinear Systems on Weight-Unbalanced Directed Networks

Jin Zhang, Lu Liu, Haibo Ji

摘要:

研究了二阶不确定非线性多智能体系统在权值不平衡有向网络上的分布式最优输出一致性问题。在局部代价函数强凸且具有全局Lipschitz梯度的标准假设下,设计了一种新的分布式动态状态反馈控制器,使得所有智能体的输出均达到最小化全局代价函数的最优解,该全局代价函数是所有局部费用函数之和.控制器的设计是基于一个两层的策略,其中一个分布式的最优协调器和参考跟踪控制器分别提出来解决所带来的挑战,从不平衡的有向网络和不确定的非线性函数。所提出的控制器的一个关键特点是,包含不确定性和干扰的非线性函数不需要全局Lipschitz。此外,利用适应控制技术,不需要任何不确定性或干扰的先验知识。最后通过两个仿真实例验证了所提控制方案的有效性。

英文摘要:

This paper investigates the distributed optimal output consensus problem of second-order uncertain nonlinear multi-agent systems over weight-unbalanced directed networks. Under the standard assumption that local cost functions are strongly convex with globally Lipschitz gradients, a novel distributed dynamic state feedback controller is developed such that the outputs of all the agents reach the optimal solution to minimize the global cost function which is the sum of all the local cost functions. The controller design is based on a two-layer strategy, where a distributed optimal coordinator and a reference-tracking controller are proposed to address the challenges arising from unbalanced directed networks and uncertain nonlinear functions respectively. A key feature of the proposed controller is that the nonlinear functions containing the uncertainties and disturbances are not required to be globally Lipschitz. Furthermore, by exploiting adaptive control technique, no prior knowledge of the uncertainties or disturbances is required either. Two simulation examples are finally provided to illustrate the effectiveness of the proposed control scheme.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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