一类网络化离散系统的H_∞输出跟踪控制  

Network-Based H_∞ Output Tracking Control for a Type of Discrete Time Systems

作　　者：陈玉露[1] 昌学莉 汤红吉[1] 

机构地区：[1]南通大学理学院,江苏南通226007

出　　处：《南通大学学报（自然科学版）》2014年第2期13-19,共7页Journal of Nantong University(Natural Science Edition)　

基　　金：国家自然科学基金项目(61174065;61273103;61374061)

摘　　要：考虑了具有量化和数据丢失的一类网络化离散系统的H∞输出跟踪控制问题.系统和参考模型的状态在传输前需要量化处理,量化误差处理为扇形有界不确定性,数据丢失建模为Bernoulli过程.基于线性矩阵不等式,得出了系统存在H∞跟踪控制器的充分条件,保证了系统的输出在H∞意义下,跟踪指定的参考模型输出.最后,数值例子表明该方法的有效性.This paper investigated the problem of H∞ output tracking for a type of discrete network-based control sys-tems subjected to quantization and data dropout. The state of controlled system and the reference model state were quantized before being communicated. The quantization error was treated as sector-bounded uncertainty. The effect of the random packet loss was modelled as a Bernoulli process. Later, a sufficient condition was proposed for the exis-tence of H∞ tracking controllers in terms of linear matrix inequalities （LMIs）. The proposed controller could guarantee the output of the closed-loop networked control system tracks that of a given reference model well in the H∞ sense. Finally, a numerical example was prensented to show the effectiveness and usfulness of the proposed H∞ output tracking design.

关 键 词：网络化离散系统 H∞输出跟踪控制 量化 数据丢失 

分 类 号：O231.2[理学—运筹学与控制论]