Research of fault detection method based on modified observer

被引：0
|
作者：
Shi H.-T. [1 ]
Hou M.-X. [1 ]
Wu Y.-H. [1 ]
Tong S.-H. [1 ]
He Q.-Y. [2 ]
机构：
[1] College of Mechanical Engineering, Shenyang Jianzhu University, Shenyang
[2] Institute of Building Mechanization, China Academy of Building Research, Langfang
来源：
Kongzhi yu Juece/Control and Decision | 2022年 / 37卷 / 08期
关键词：
adaptive threshold; ball bearing; fault detection; observer;
D O I：
10.13195/j.kzyjc.2020.1229
中图分类号：
学科分类号：
摘要：
In this paper, a method based on the modified observer is proposed to detect faults. Firstly, a modified observer is designed, which has more design degrees of the freedom than the Luenberger observer. Then, the disturbance robustness and fault sensitivity of residuals are improved by introducing l1/H∞ performance. In addition, the design of adaptive threshold can effectively avoid fault false alarm. Finally, the effectiveness of the proposed method is verified by simulation and experiments. © 2022 Northeast University. All rights reserved.
引用
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页码：2033 / 2039
页数：6
相关论文
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