一类不确定网络控制系统的滑模变结构控制  

Sliding Mode Variable Structure Control for a Class of Networked Control Systems with Uncertainties

作　　者：高芳征[1] 尚艳玲[2] 袁付顺[1] 王丽丽[1] 

机构地区：[1]安阳师范学院数学与统计学院,河南安阳455002 [2]安阳师范学院计算机教学部,河南安阳455002

出　　处：《河南科技大学学报（自然科学版）》2011年第4期28-32,109,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(61073065);河南省基础与前沿技术研究计划项目(092300410145);河南省教育厅自然科学基金项目(2009B11003;2010B120001)

摘　　要：研究了一类同时具有输入时延和外部干扰的网络控制系统滑模变结构控制问题。首先,通过引入特殊变换将原不确定时延系统转化为无时延系统;然后,在新坐标下,通过模型降阶,结合线性矩阵不等式方法设计滑动模面,并选择控制律保证闭环系统在有限的时间内到达滑模面;最后,对其稳定性进行了分析,给出并证明了原系统渐近稳定的充分条件,并通过数值例子说明了设计方法的有效性。In this paper,the sliding mode controller designed for a class of networked control systems with network-induced delay and uncertainties was studied.A particular linear transformation was introduced to convert the original time-delay system into a delay-free form.With reducing the regular systems and the LMI approach,a sliding hyper-plane was designed in the new coordinate system.The proposed control law drived the system to reach the sliding mode in finite time.Finally,a sufficient asymptotic stability condition of the original system was presented and the effectiveness of the proposed method was demonstrated by numerical example.

关 键 词：网络控制系统 输入时延 滑模变结构控制 渐近稳定 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]