基于观测器的具外部扰动的离散时间系统的滑模控制  

Sliding Mode Control of Discrete-Time System with External Disturbance Based on Statement Observer

作　　者：高超[1] 高存臣[1] 

机构地区：[1]中国海洋大学数学科学学院,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2014年第3期118-122,共5页Periodical of Ocean University of China

摘　　要：针对一类具有配外部扰动的多输入多输出(MIMO)离散时间系统(DTS),提出了改进的状态观测器的设计方案,使得该观测器不受外部扰动的影响。对外部扰动满足匹配条件的MIMO-DTS,提出了基于状态观测器和扰动估计器的滑模控制器设计方案,该设计方案不要求知道系统的状态和外部扰动的上界。提出的仿真例子说明了本文方法的可行性和有效性。An improved design procedure of state observer was proposed for a class of multi-input and multi-output （MIMO） discrete-time systems （DTS） with unmatched external disturbance in this paper, and the state observer was not affected by external disturbances. A design scheme for the sliding mode controller was put forward based on the state observer and the disturbance estimator for a class of MI- MO-DTS which some external disturbances satisfy the matched condition. The system states and the upper bound of external disturbances were not required to know in the design scheme. Finally, a simulation example was presented to demonstrate the feasibility and effectively of the proposed method.

关 键 词：非匹配 不确定离散系统 状态观测器I外部扰动 滑模控制器中图法 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] TP273[自动化与计算机技术—控制科学与工程]