Active disturbance rejection control for vibration displacement system of continuous casting mold driven by servo motor

被引：0

作者：

Li Q. ^{[1
]}

Fang Y.-M. ^{[1
,2
]}

Li J.-X. ^{[1
]}

Ma Z. ^{[1
]}

机构：

[1] Key Lab of Industrial Computer Control Engineering of Hebei Province, Yanshan University, Qinhuangdao

[2] National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 03期

关键词：

Active disturbance rejection control; Continuous casting mold; Extended states observer; Parameter estimator; Vibration displacement;

D O I：

10.15938/j.emc.2020.03.018

中图分类号：

学科分类号：

摘要：

In view of the external time-vary load disturbance and corresponding system uncertainties, such as rotational inertia and friction coefficient in the vibration displacement system of continuous casting mold driven by servo motor, an active disturbance rejection controller based on states observer and parameters estimator is proposed. The extended states observer was used to estimate the states and the total uncertainty. The parameters estimator based on the projected gradient method was applied to estimate the nonparametric uncertainties caused by the uncertain parameters, such as the rotational inertia in the input channel. The Lyapunov function was employed to demonstrate the convergence of the observer and the robustness of the closed-loop system. The simulation and experiment results show that the proposed controller could achieve asymptotic tracking to the displacement of the mold and has strong robustness against the load disturbance and parameter variations. © 2020, Harbin University of Science and Technology Publication. All right reserved.

引用

页码：147 / 156

页数：9

共 17 条

[1] Li X.K., Zhang L.P., Yang L.D., Et al., Dynamics Study on New Non-Sinusoidal Oscillation System of mold, Journal of Iron and Steel Research International, 15, (2008)
[2] Zhou C., Zhang X.Z., Wang F., Et al., Mechanism and Analysis of Non-Sinusoidal Oscillation of Continuous Casting Mold Synchronously Driven by Double servomotors, Journal of Iron and Steel Research International, 24, (2017)
[3] Liu L., Dun Y., Fang Y., Et al., Modeling and Verification of the Nonlinear System of Oscillation Plat Form of Continuous Casting Mold Driven by Servo motor, Advances in Mechanical Engineering, 7, (2016)
[4] Li S., Liu Z., Adaptive speed control for permanent magnet synchronous motor system with variations of load inertia, IEEE Transactions on Industrial Electronics, 56, 8, (2009)
[5] Fang Y., Ren S., Wang Z., Et al., Adaptive fuzzy Bachstepping control for speed of permanet magnet synchronous motor, Electric Machines and Control, 15, 6, (2011)
[6] Liu L., Li Z., Fang Y., Et al., Sliding-mode control of continuous cast mold oscillation displacement system driven by servo motor, Electric Machines and Control, 20, 12, (2016)
[7] Zhang J., Zhu F., Linear system unknow input observer design when the observer matching condition is not satisfied, Control Theory & Applications, 34, 4, (2017)
[8] Ginoya D., Shendge P.D., Phadke S.B., Sliding mode control for mismatched uncertain systems using an extended disturbance observer, IEEE Transactions on Industrial Electronics, 61, 4, (2014)
[9] Zhu Q., Ma J., Liu K., A nonlinear disturbance observer based on robust approach to the trajectory tracking of an unmanned surface vehicle, Electric Machines and Control, 20, 12, (2016)
[10] Han J., Auto-disturbance rejection controller and its applications, Control and Decision, 13, 1, (1998)

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