中文

化工管路泄漏的二级故障诊断系统

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  • Key Words:故障诊断;;管路泄漏;;多元统计;;动态模型;;二级系统

  • Abstract:提出了一种基于二级混合结构的化工管路泄漏故障诊断方法,利用多元统计分析来监测管路流量,当流量异常时通过分析变量贡献来确定故障部位,最终采用管路流动机理模型进行故障诊断.为获取有效的稳态数据来建立多元统计分析模型,提出了一种自动确定采样滞后量的方法.实例应用结果表明,该系统诊断速度快,诊断精度与模型法相当,从而说明该二级诊断方法可行、有效.

  • Volume:v.37;No.310

  • Issue:S1

  • Translation or Not:no


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