轧钢机状态监测与故障诊断技术

Review of Condition Monitoring and Fault Diagnosis for Steel Rolling Mill

总结归纳了轧钢机的主要故障,针对轧钢机的结构和故障特点,将轧钢机的故障划分为设备故障、系统故障和产品质量故障3个级别,并分析了轧钢过程变量的数据特点以及轧钢机的故障特性。综述了轧钢机故障诊断方法,从整体上将轧钢机的故障诊断方法分为定性分析和定量分析两大类,并详细介绍了每种轧钢机故障诊断方法的基本思想、发展现状,重点介绍了多元统计的方法。指出了轧钢机故障诊断研究存在的问题和未来发展的方向。

Key faults of steel rolling mill system are reviewed in this paper, which are classified into three parts-equipment faults, system faults and product quality faults based on the characteristics of structure for steel rolling mill,then the variables data characteristic of steel rolling process and faults characteristic of steel rolling mill are analyzed. Key fault diagnosis methods are summarized, and a new classification framework of fault diagnosis methods for steel rolling mill have been given, which is divided into qualitative analysis approaches and quantitative analysis approaches, in general. The basic idea and research status of each method and its application in steel rolling mill are analyzed and discussed, especially multivariate statistical analysis approach. Finally, the existing problems and the future research direction for fault diagnosis in steel rolling mill are presented.