Multiplicative Fault Estimation for a Type of Nonlinear Uncertain System

被引：0
|
作者：
Gao Chunyan [1 ]
Zhao Qing [1 ]
Duan Guang-Ren
机构：
[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada
来源：
2011 30TH CHINESE CONTROL CONFERENCE (CCC) | 2011年
关键词：
Adaptive observer; Multiplicative Fault estimation; Oscillatory failure case; Lipschitz nonlinear system; DIAGNOSIS;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper investigates the parameter estimation problem for a type of nonlinear system with multiplicative component faults and model uncertainties. Multiplicative faults are parameter changes within a process. Model uncertainties can be treated as an unknown input by appropriate transformation. An adaptive observer is proposed to estimate the multiplicative faults which are affected by system states and inputs. The component faults triggering oscillatory failures are considered. The proposed design is applied to a hydraulic rig model to verify its effectiveness.
引用
收藏
页码：4355 / 4360
页数：6
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