一种基于控制方程的故障检测诊断算法及其在某化工厂的应用

Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207) Pub Date : 1998-06-21 DOI:10.1109/ACC.1998.703079

Jie Zhang, Suzhen Zhang, N. Thornhill

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引用次数: 1

摘要

本文在Kramer(1987)方法的基础上，提出了一种控制方程故障检测与诊断算法，并将其扩展到多故障。该算法专门设计用于克服过程中可能导致诊断不稳定的干扰和不确定性。该方法用于检测和/或诊断以下故障:传感器故障状态的故障-高故障和低故障，卡阀，工厂泄漏，以及其他意外或新故障。该算法于1995年12月安装在某PET厂的分布式控制系统上，并继续使用，从而证明了故障检测和诊断方法的成功。

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A governing equation based fault detection and diagnosis algorithm and its application in a chemical plant

This paper describes a governing equation fault detection and diagnosis algorithm, which is based on Kramer's (1987) approach and extended it to deal with multiple faults. The algorithm is specifically designed to overcome disturbances and uncertainties in the process which might result in diagnostic instability. The approach is used to detect and/or diagnose the following faults: sensor faulty status of fails-high and fails-low, sticking valve, plant leaks, and other unanticipated or novel faults. The algorithm was installed on a distributed control system of a PET plant in Dec. 1995, and continues to be used thus demonstrating the success of the fault detection and diagnosis approach.

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Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)

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