网络控制系统的μ鲁棒控制研究

μ Robust Control Research for Networked Control System

基于结构奇异值理论,针对网络控制系统的延时问题,建立了网络控制系统的鲁棒主动控制模型,提出了μ鲁棒控制器的设计方法。通过引入虚拟不确定块将网络控制系统的鲁棒性问题转化为广义系统的鲁棒稳定性问题求解。仿真表明,μ综合方法对系统模型不确定性具有很好的稳定鲁棒性和性能鲁棒性。

Based on the theory of structured singular value,focusing on the time delay problem of NCS,a robust control model of NCS is built and a design method of μ robust controller is proposed. The robust performance problem of the networked control system is transformed into the robust stability problem of an augment system to solve via the introduction of a fictive uncertainty module. Simulation results indicate that μ synthesis can provide a good disturbance rejection and is more robust to parameter variations.