参数不确定电梯机械系统振动的H_∞鲁棒控制

ACTIVE VIBRATION H_∞ ROBUST CONTROL FOR THE MECHANICAL SYSTEM OF ELEVATOR WITH PARAMETER UNCERTAINTY

本文在阐述参数不确定性系统的鲁棒稳定及其控制器设计问题基础上 ,讨论应用H∞ 控制理论同时考虑鲁棒稳定与干扰抑制问题的控制器设计。最后考虑模型参数不确定性电梯系统振动的H∞ 鲁棒控制。数值仿真结果表明 ,控制算法是有效的 。

Because of the variety of the working condition of the elevator and the time_varying property of the vibration model of the mechanical system,the parameters of the model are of uncertainty.Firstly,in the paper,robust stability of the system with parameter uncertainty is discussed.Secondly,using H ∞ control theory,controller which can stabilize system with parameter uncertainty,and at the same time suppress the excessive vibration response due to outside disturbances is designed.Finally,active vibration H ∞ robust control for the mechanical system of elevator with parameter uncertainty is made.Computer simulation shows that the approach employed in the paper is suitable and the control is effective.