一种基于死区离散趋近律的准滑模控制

刘涛; 刘贺平

doi:10.3724/SP.J.1004.2011.00760

一种基于死区离散趋近律的准滑模控制

doi: 10.3724/SP.J.1004.2011.00760

刘涛^1,2,
刘贺平¹

1.
北京科技大学自动化学院北京 100083;
2.
北京物资学院信息学院北京 101149

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- 文章访问数: 2050
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- 被引次数: 0
出版历程
- 收稿日期: 2010-06-13
- 修回日期: 2010-12-02
- 刊出日期: 2011-06-20

Quasi-sliding-mode Control Based on Discrete Reaching Law with Dead Zone

LIU Tao^1,2,
LIU He-Ping¹

1.
School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083;
2.
School of Information, Beijing Wuzi University, Beijing 101149

摘要

摘要: 针对受正弦信号干扰的不确定离散时间系统,提出一种基于死区离散趋近律的准滑模控制方法. 系统能够由任一初始状态向死区作单调趋近运动,并于有限时间到达准滑动模态区作准滑动模态运动. 准滑动模态带具有任意阶次小的特点.该方法进一步增强了系统鲁棒性,有效改善系统动态品质,减小了稳态误差.系统无控制抖振和稳态抖振产生.仿真结果表明该方法的有效性.
- 离散趋近律 /
- 死区 /
- 准滑模控制 /
- 不确定性
Abstract: A quasi-sliding-mode control design method based on discrete reaching law with dead zone is considered for discrete time systems with uncertainty which is a sinusoidal signal. The control strategy could drive the state of controlled system to the dead zone monotonously for arbitrary initial value and the quasi-sliding-mode is reached in a finite time. Quasi-sliding-mode band could be designed to be as small as arbitrary order of magnitude. At the same time, better robustness is guaranteed, dynamic quality is improved and steady-state error is reduced. Furthermore, the undesired control chattering and steady-states chattering are avoided. Simulation results show the effectiveness for the proposed method.
- Discrete reaching law /
- dead zone /
- quasi-sliding-mode control /
- uncertainty

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参考文献(1)

[1]

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