基于改进观测器的故障检测方法及其应用研究
作者:
作者单位:

1.沈阳建筑大学;2.中国建筑科学研究院有限公司建筑机械化研究分院

作者简介:

通讯作者:

中图分类号:

TP11

基金项目:

国家自然科学基金(No:52075348);辽宁省自然科学基金(No:2019-ZD-0654);辽宁省教育厅项目(No:Infw202007);辽宁省兴辽英才青年拔尖人才项目(No:XLYC2007031)


Research of Fault Detection Method and Application Based on Modified Observer
Author:
Affiliation:

1.Shenyang Jianzhu University;2.Institute of Building Mechanization,China Academy of Building Research

Fund Project:

National Science Foundation of China(No:52075348);Natural Science Foundation of Liaoning Province(No:2019-ZD-0654);Education Department of Liaoning Province Project(No:lnfw202007);Key Laboratory of Vibration and Control of Aero-Propulsion System, Ministry of Education, Northeastern University(No: VCAME202001);Liao Ning Revitalization Talents Program(No: XLYC2007031)

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    摘要:

    本文提出了一种基于改进观测器的故障检测方法.首先,设计一种改进的观测器,该观测器相比于Luenberger观测器拥有更多的设计自由度.然后,引入$l_{1}/H_{\infty}$性能指标提升观测器产生残差的干扰鲁棒性和故障敏感度.此外,自适应阈值的设计可以有效的避免故障预警的误报.最后,通过仿真和实验验证本文所提方法的有效性.

    Abstract:

    In this paper, a method based on the modified observer is proposed to detect faults. First, a modified observer is designed, which has more design degrees of the freedom than Luenberger observer. Then, the disturbance robustness and fault sensitivity of residuals are improved by introducing $l_{1}/H_{\infty}$ performance. In addition, the design of adaptive threshold can effectively avoid fault false alarm. Finally, the effectiveness of the method proposed in this paper is verified by simulation and experiment.

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历史
  • 收稿日期:2020-09-04
  • 最后修改日期:2021-06-10
  • 录用日期:2021-06-17
  • 在线发布日期: 2021-07-01
  • 出版日期: