同济大学学报（自然科学版）2013，Vol.41Issue(7)：1106-1111,6.DOI:10.3969/j.issn.0253-374x.2013.07.025
非线性系统执行器故障检测及重构
Actuator Fault Detection and Reconstruction for Nonlinear Systems
摘要
Abstract
The problems of the actuator fault detection and reconstruction based on observers were discussed for uncertain nonlinear systems,when the observer matching condition was not satisfied.An auxiliary output vector was introduced so that the observer matching condition was satisfied.A high-order sliding mode observer was employed to exactly estimate both the auxiliary outputs and their derivatives within a cartain time based on the system outputs.A fault reconstruction method based on the high-order sliding mode observer was developed.An adaptive controller was implemented to adjust the Lipschitz constant adaptively.Finally,a numerical simulation example was given to illustrate the effectiveness of the proposed methods.关键词
滑模观测器/匹配条件/故障检测及重构Key words
sliding mode observer/ observer matching condition/ fault detection and reconstruction分类
信息技术与安全科学引用本文复制引用
朱芳来,李志强..非线性系统执行器故障检测及重构[J].同济大学学报（自然科学版）,2013,41(7):1106-1111,6.基金项目
国家自然科学基金(61074009) （61074009）
高等学校博士学科点专项科研基金(20110072110015) （20110072110015）
广西制造系统与先进制造技术重点实验室(PF110289) （PF110289）
同济大学基础高等研究院基金 （）
上海市重点学科(B004) （B004）
