A new variable power reaching law for sliding mode control

被引：0

作者：

Tian Y. ^{[1
]}

Cai Y. ^{[1
]}

机构：

[1] School of Electronic & Information Engineering, Xi'an Jiaotong University, Xi'an

来源：

Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology | 2019年 / 27卷 / 02期

关键词：

Finite time stability; Power rate reaching law; Sliding mode control; Steady-state error;

D O I：

10.13695/j.cnki.12-1222/o3.2019.02.015

中图分类号：

学科分类号：

摘要：

A variable power reaching law for sliding mode control is proposed aiming at reducing the chattering phenomenon in traditional sliding mode control methods and speeding up the convergence speed. The proposed reaching law adjusts the convergence process adaptively by using a variable power term, so that the system has anobviously faster convergence and has no chattering phenomenon, and it also has the characteristic of global finite-time convergence. It is proved that, for a class of bounded external disturbance, the sliding mode variable converges to a preset steady-state error with the boundary layer width of about 1 within finite time, and the value of the steady-state error is less than the existed reaching laws such as double power reaching law, the fast power reaching law, and so on. Simulation results are given, which demonstrate the validity and superiority of the proposed method. © 2019, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.

引用

页码：241 / 247

页数：6

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