基于扰动补偿的无抖振不确定离散变结构控制系统  

Chattering-free Uncertain Variable Structure Discrete Control System Based on Disturb Compensation

作　　者：李兆强[1] 周德云[1] 曲艺海[2] 

机构地区：[1]西北工业大学电子信息学院,西安710072 [2]解放军西安通信学院,西安710106

出　　处：《系统仿真学报》2009年第11期3405-3407,共3页Journal of System Simulation

摘　　要：研究了单输入多变量不确定离散系统变结构控制的设计问题,针对同时具有参数摄动和外界扰动的单输入多变量系统的振荡问题利用最优估计原理对扰动进行了补偿,提出了一种新的变结构控制方案,消除了系统的抖振现象,并且改善了系统的瞬态性能和鲁棒性,仿真结构表明了该算法的有效性。On single-input multi-variable uncertain variable structure control system design issues, in view of both a parameter perturbations and disturbance outside the single-input multi-variable system oscillation problems using the principle of optimal estimate for the disturbance compensation, a new variable structure control programs was proposed to eliminate the system＇s chattering phenomenon, and improve the system and the transient performance and robustness. The simulation shows that the structure of the algorithm is effective.

关 键 词：不确定系统 离散控制 变结构控制 扰动补偿 最优估计 无抖振 

分 类 号：V239.1[航空宇航科学与技术—航空宇航推进理论与工程]