摘要
研究了具有随机延时的网络伺服控制系统的镇定问题。为了改善系统的控制特性,提出延时相关增益调度状态反馈积分控制器。采用状态观测器来估计状态参数,应用增广矩阵法将闭环系统建模为闭环切换系统,以跟踪误差作为控制器输出。通过构造依赖往返延时的Lyapunov函数推导了闭环系统随机稳定条件。仿真结果验证了该方法的有效性。
The paper investigates the stabilization problem for a class of networked servo control systems with stochastic time -delays .To improve the control performance of the system ,the delay -dependent gain scheduling -based state feedback integral controller is proposed .Since not all the states are available in practice ,a local observer is utilized to estimate the state vector .With the augmenting technique ,we ob‐tain closed-loop switched systems .The tracking error is chosen as the controlled output .The stability conditions are derived by using the round -trip time delay -dependent Lyapunov approach .Simulation re‐sults are given to demonstrate the effectiveness of the proposed approach .
出处
《西安航空学院学报》
2015年第5期59-64,共6页
Journal of Xi’an Aeronautical Institute
关键词
网络伺服控制系统
网络诱导时延
状态反馈控制
积分控制
networked servo control systems
networked induced delay
state-feedback control
integral control
