河南理工大学学报：自然科学版2012，Vol.31Issue(4)：447-452,6.
基于滑模观测器的不确定系统传感器故障重构
Sensor fault reconstruction for a class of uncertain systems based on sliding mode observers
摘要
Abstract
This paper considers the problem of sensor fault reconstruction for a class of uncertain systems when observer matching conditions are not satisfied. A new augmented system is constructed by introducing a new augmented sate vector. The new augmented system is only with an unknown input vector which consists of the original system＇s unknown input and sensor fault vector. An auxiliary output vector which can satisfy the observer matching condition is proposed, and a high-order sliding mode observer is considered to obtain the exact estimates of the auxiliary outputs. Then, a robust sliding mode observer is developed to asymptotically estimate the system states using the estimated auxiliary outputs. A kind of algebraic reconstruction method of sensor fault is developed. Finally, a numerical simulation example is given to illustrate the effectiveness of the proposed methods.关键词
传感器故障重构/滑模观测器/匹配条件Key words
sensor fault reconstruction/sliding mode observer/observer matching condition分类
信息技术与安全科学引用本文复制引用
杨俊起,陈滟涛,朱芳来..基于滑模观测器的不确定系统传感器故障重构[J].河南理工大学学报：自然科学版,2012,31(4):447-452,6.基金项目
国家自然科学基金资助项目 （）
高等学校博士学科点专项科研基金资助课题 （）
上海重点学科项目（B004）. （）
