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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 a discrete-train deviation system with structural uncertainty is studied. The system’s information overlap structure is extended by using the constraint of the principle of large system inclusion. The structural uncertainty and system data transmission delay are both considered and the expanded model is discretized. The system is designed by solving linear matrix inequalities (LMIs) State feedback decentralized robust controllers without external disturbances and H_∞ suboptimal state feedback decentralized robust controllers with external disturbances. The simulation results show that it is effective to apply the proposed control method to control the discrete train deviation system with structural uncertainty.