摘要
针对网络控制系统中的网络诱导时延及不确定性因素,设计了有较强鲁棒性的滑模控制器。为了简化系统的设计,首先,利用线性变换将原时滞系统转化为无时滞不确定性系统,基于变换后的系统进行滑模控制器的设计。结合二次型性能指标最优控制方法,给出了线性无时滞系统最优滑模的综合设计方法。选择的控制律能保证系统在有限的时间内到达滑模面,并能有效的削弱抖振。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。仿真验证了该方法的可行性和有效性。
The problem of designing sliding mode controllers （SMC） for a class of networked control systems （NCSs） with network-induced delay and uncertainty is considered in this paper. A particular linear transformation is introduced to convert the original time-delay system into a delay-free form and a SMC was designed based on the transformed system. With the quadratic performance index optimal control technique, the general design of optimal sliding mode is given and the selected control law can ensure the existence of the sliding mode and alleviate chattering effectively. Finally, a sufficient asymptotic stability condition of the original system is presented, the efficiency and feasibility of the proposed method are demonstrated by simulation.
出处
《青岛科技大学学报（自然科学版）》
CAS
2006年第6期535-539,共5页
Journal of Qingdao University of Science and Technology:Natural Science Edition
