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首页> 外文期刊>Journal of Iron and Steel Research International >Design of Fault Diagnosis Observer for HAGC System on Strip Rolling Mill
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Design of Fault Diagnosis Observer for HAGC System on Strip Rolling Mill

机译：轧机HAGC系统故障诊断观测器的设计。

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摘要

By building mathematical model for HAGC (hydraulic automation gauge control) system of strip rolling mill, treating faults as unknown inputs induced by model uncertainty, and analyzing fault direction, an unknown input fault diagnosis observer group was designed. Fault detection and isolation were realized through making observer residuals robust to specific faults but sensitive to other faults. Sufficient existence conditions and design of the observers were given in detail. Diagnosis observer parameters for servo-valve, cylinder, roller and body rolling mill were obtained respectively. The effectiveness of this diagnosis method was proved by actual data simulations.
机译：通过建立带钢轧机HAGC（液压自动化仪表控制）系统的数学模型，将故障作为模型不确定性引起的未知输入，并分析故障方向，设计了未知输入故障诊断观察者组。通过使观察者残差对特定故障具有鲁棒性但对其他故障敏感，可以实现故障检测和隔离。给出了足够的生存条件和观察者的设计。分别获得了伺服阀，气缸，辊子和轧机的诊断观测参数。实际数据仿真证明了该诊断方法的有效性。

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