Study on robust control for parametric excitation nonlinear torsional vibration of a strip-rolling mill's mechanical and electrical drive system

被引：0

作者：

Han D.-Y. ^{[1
]}

Shi P.-M. ^{[2
]}

Zhao D.-W. ^{[2
]}

机构：

[1] College of Vehicles and Energy, Yanshan University, Qinhuangdao

[2] College of Electrical Engineering, Yanshan University, Qinhuangdao

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2016年 / 35卷 / 12期

关键词：

Nonlinear; Parametric excitation; Robust H[!sub]∞[!/sub; Rolling mill; Torsional vibration;

D O I：

10.13465/j.cnki.jvs.2016.12.001

中图分类号：

学科分类号：

摘要：

While considering parametric excitation nonlinearity, uncertainty and load torque, the nonlinear torsional vibration dynamic model of a mechanical and electrical transmission system in a strip-rolling mill is built. The problem of the strip-rolling mill's motor-speed robust tracking and non-fragile control of the DC motor is studied. As the nonlinearity of the strip-rolling mill's mechanical and electrical drive system is translated into parameter uncertainty, the sufficient condition that lets the system attain quadratic stability and outside-disturbance attenuation is obtained using H∞ theory, Lyapunov stability theory and the LMI method. In order to achieve the given speed-signal tracking and non-fragile control, a feedforward and compensatory controller is designed. The results of the real strip-rolling mill's simulation example verify the effectiveness of the proposed method, and the non-fragility of the controller is reflected as the controller's parameter robustness. This means that the effect of the torsional vibration non-fragile control of the strip-rolling mill's mechanical and electrical drive system can be fulfilled by choosing the parameters of the controller directly. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：1 / 6and21

页数：620

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