面向大规模工业生产过程的数据驱动故障诊断方法综述

A survey of data-driven fault diagnosis methods for large-scale industrial production processes

  • 摘要: 聚焦于大规模工业过程智能化、精准化和多源化的故障诊断需求,数据驱动的故障诊断方法将历史数据、实时数据以及多源信息融合,最大化提升了故障检测与识别的准确性和效率,对保障工业生产过程的安全可靠运行与实时有效维护具有重要意义。首先,本文梳理了数据驱动的故障诊断方法,重点针对稳态系统、动态系统及具有非线性及非高斯的工业过程展开综述。其次,本文介绍了大规模工业生产过程的分布式故障诊断方法,从系统的分布式结构和分布式传感器网络出发,分别阐述了分布式故障诊断方法在系统分解和数据融合、相关性分析以及一致性方法等三个方面的最新进展。分布式故障诊断方法将监测职能分散到各子单元,使各子单元可根据自身及相邻子单元的运行状态自行做出安全性能判断,在大规模工业生产过程的监测和故障诊断中具有优势。最后,本文总结了数据驱动的分布式故障诊断方法的实际应用,并指出其在定性定量混合分析、鲁棒性诊断和数据安全等方面的发展趋势。

     

    Abstract: In response to the complex, multi-source, and precision-oriented fault diagnosis requirements of large-scale industrial processes, data-driven fault diagnosis methods have attracted increasing attention. These methods integrate historical data, real-time data, and multi-source information to significantly enhance the accuracy and efficiency of fault identification and localization. This is crucial for ensuring the safe, reliable, and real-time maintenance of industrial production processes. Firstly, a comprehensive overview on data-driven fault diagnosis methods is given, focusing particularly on steady-state systems, dynamic systems, and industrial processes characterized by nonlinearity and non-Gaussianity. Secondly, distributed fault diagnosis methods for large-scale industrial production processes are reviewed. Based on the distributed structure and sensor networks for large-scale systems, the latest works are focused on system decomposition and data fusion, correlation analysis, and consistency mechanisms. With the aid of the distributed fault diagnosis methods, the monitoring capacities are distributed among all the subsystems, enabling each subsystem to independently assess its safety and performance based on its own data and interactions with neighboring subsystems. This approach offers distinct advantages in monitoring and diagnosing large-scale industrial processes. Finally, the paper concludes by summarizing practical applications evaluating the performance of data-driven fault diagnosis methods. Potential trends in this field are also highlighted, including the integration of qualitative and quantitative methods, the enhancement of diagnosis robustness, and the assurance of data security.

     

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