一类非线性大系统的动态递阶输出反馈镇定

Dynamic hierarchical output feedback stabilization for a class of nonlinear large-scale systems

中文关键词  非线性大系统  镇定  动态递阶控制  本地观测器

英文关键词  nonlinear large-scale systems  stabilization  dynamic hierarchical control  local state observer

中文摘要

      本文应用递阶控制方法研究一类非线性大系统的输出反馈镇定问题. 与分散控制不同, 递阶控制包含一个系统, 它根据所有子系统信息协调各子系统的本地控制. 本文设计由各子系统输出驱动的动态中心协调系统, 产生的协调信号被用于设计各子系统的状态观测器; 然后, 基于协调信号和观测器设计各子系统的反馈控制器. 各子系统控制器经协调信号互相关联、协作, 实现非线性大系统的镇定控制; 最后, 以仿真实例验证本文结论.

英文摘要

      In this paper, the hierarchical control method is introduced to address the stabilization problem for a class of large-scale nonlinear systems. Unlike decentralized control, hierarchical control relies on a system that coordinates the local controls for each subsystem based on the information from all subsystems. We design a dynamic central coordination system driven by the outputs of all subsystems to generate a coordination signal. With the signal, the local observers are built for each subsystem. The local controllers for each subsystem are designed based on the coordination signal and the local observers. All the local controllers cooperate with each other via the coordination signal and stabilize the large-scale nonlinear systems. Finally, a simulation example is given to illustrate the obtained result.