基于自适应趋近律的一种离散时间系统变结构控制  

Variable Structure Control Method for Discrete-time Systems Based on Adaptive Reaching Law

作　　者：李涛[1] 张合新[1] 孙鹏[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《弹箭与制导学报》2010年第2期15-16,20,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为提高离散趋近律的趋近速率和收敛性能,提出一种基于自适应趋近律的改进离散时间滑模趋近律,应用该方法设计的变结构控制系统比自适应趋近律趋向滑模面的速率更快,其原点的稳定性和系统的平稳性相比较也得到更好的效果,通过仿真对此进行了验证。An improved reaching law of discrete-time sliding mode was proposed based on the adaptive reaching law to enhance the reaching rate and convergent feature. The reaching rate of the variable structure system designed through this way is faster than that designed through adaptive reaching law, and the stability of origin and steady of the system are comparatively better. Simulation results show the effectiveness of the proposed control law.

关 键 词：离散时间系统 滑动模态 变结构 趋近律 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]