Integrated design of fault estimation and fault-tolerant control for linear multi-agent systems using relative outputs
Integrated design of fault estimation and fault-tolerant control for linear multi-agent systems using relative outputs
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DOI：
10.1016/j.neucom.2018.11.005
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发表时间：
2019-02
期刊：
影响因子：
6
通讯作者：
Yan Liu;Guanghong Yang
中科院分区：
文献类型：
--
作者：
Yan Liu;Guanghong Yang
本文研究了具有失配不确定性的线性多智能体系统的故障估计和容错控制问题。与现有结果不同，提出了一种集成设计方法来解决故障估计和控制相结合产生的双向不确定性问题。为了实现分布式集成设计，引入谱分解和坐标变换，使得领导跟随多智能体系统可以解耦为独立的可观测子系统。对于这个新的子系统，仅使用相对输出构建了未知输入观测器和容错控制器，并根据线性矩阵不等式给出了集成设计条件。最后通过两个算例说明了该方法的有效性。
In this paper, the problem of fault estimation and fault-tolerant control is investigated for linear multi-agent systems with mismatched uncertainty. Different from the existing results, an integrated design method is proposed to solve the problem of bi-directional uncertainty which arises from the combination of fault estimation and control. In order to realize a distributed integrated design, spectral decomposition and coordinate transformation are introduced so that the leader-following multi-agent systems can be decoupled into independent observable subsystems. For this new subsystem, an unknown input observer and a fault-tolerant controller are constructed by only using the relative outputs, and an integrated design condition is given in terms of linear matrix inequality. Finally, two examples are utilized to illustrate the validity of this method.