结构不确定离散车组偏差系统分散鲁棒控制

Decentralized Robust Control of Discrete Vehicle-string Bias Systems with Structure Uncertainties

研究具有结构不确定性的离散车组偏差系统的分散鲁棒控制问题。应用大系统包含原理的约束条件扩展系统的信息重叠结构;兼顾系统的结构不确定性和系统数据传输时延,将扩展后的模型离散化;采用求解线性矩阵不等式(LMIs)的方法设计出系统在无外界干扰情况下的状态反馈分散鲁棒控制器,以及有外界干扰情况下的H_∞次优状态反馈分散鲁棒控制器。仿真结果表明,应用所提出的控制方法控制具有结构不确定性的离散车组偏差系统是有效的。

A decentralized robust control problem for the discrete vehicle-string bias systems with structure uncertainties is discussed. Information overlapping structure of systems is expanded by the restriction conditions of inclusion principle; Based on the Structure un- certainties of systems and the data transmission delay of systems, the expanded model is discretized; An approach of designing the de- centralized robust state feedback controller is proposed for the systems without perturbation, and An approach of designing the H∞ sub- optimal robust state feedback controller is proposed for the systems with perturbation, the two kinds of approaches are proposed by the linear mairix inequalities （LMIs） method. The simulation results show the effectiveness of H∞ applying this design method to the discrete vehicle-string bias systems with structure uncertainties.