| 基于改进观测器的故障检测方法 |
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| 引用本文： | 石怀涛,侯马骁,吴玉厚,佟圣皓,何劝云. 基于改进观测器的故障检测方法[J]. 控制与决策, 2022, 37(8): 2033-2039 |
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| 作者姓名： | 石怀涛 侯马骁 吴玉厚 佟圣皓 何劝云 |
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| 作者单位： | 沈阳建筑大学 机械工程学院,沈阳 110168;中国建筑科学研究院有限公司 建筑机械化研究分院,河北 廊坊 065000 |
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| 基金项目： | 国家自然科学基金项目(52075348)；辽宁省自然科学基金项目(2019-ZD-0654)；辽宁省教育厅项目(Infw202007)；辽宁省兴辽英才青年拔尖人才项目(XLYC2007031). |
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| 摘 要： | 提出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l1/H∞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,自适应阈值的设计可以有效避免故障预警的误报;最后,通过仿真和实验验证所提出方法的有效性.
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| 关 键 词： | 故障检测 观测器 自适应阈值 球轴承 |
Research of fault detection method based on modified observer |
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| SHI Huai-tao,HOU Ma-xiao,WU Yu-hou,TONG Sheng-hao,HE Quan-yun. Research of fault detection method based on modified observer[J]. Control and Decision, 2022, 37(8): 2033-2039 |
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| Authors: | SHI Huai-tao HOU Ma-xiao WU Yu-hou TONG Sheng-hao HE Quan-yun |
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| Affiliation: | College of Mechanical Engineering,Shenyang Jianzhu University,Shenyang 110168,China; Institute of Building Mechanization,China Academy of Building Research,Langfang 065000,China |
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| Abstract: | 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 $l_{1 |
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