Evaluation of fault diagnosability for nonlinear uncertain systems with multiple faults occurring simultaneously

被引：3
作者：
Lin Lixiong [1 ]
Wang Qing [1 ]
He Bingwei [1 ]
Peng Xiafu [2 ]
机构：
[1] Fuzhou Univ, Sch Mech Engn & Automat, Fuzhou 350000, Fujian, Peoples R China
[2] Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China
来源：
JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS | 2020年 / 31卷 / 03期
关键词：
fault diagnosability; multiple faults occurring simultaneously; uncertain affine nonlinear system; DIAGNOSIS;
D O I：
10.23919/JSEE.2020.000039
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Up to present, the problem of the evaluation of fault diagnosability for nonlinear systems has been investigated by many researchers. However, no attempt has been done to evaluate the diagnosability of multiple faults occurring simultaneously for nonlinear systems. This paper proposes a method based on differential geometry theories to solve this problem. Then the evaluation of fault diagnosability for affine nonlinear systems with multiple faults occurring simultaneously is achieved. To deal with the effect of control laws on the evaluation results of fault diagnosability, a design scheme of the evaluation of fault diagnosability is proposed. Then the influence of uncertainties on the evaluation results of fault diagnosability for affine nonlinear systems with multiple faults occurring simultaneously is analyzed. The numerical simulation results are obtained to show the effectiveness of the proposed evaluation scheme of fault diagnosability.
引用
收藏
页码：634 / 646
页数：13
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