过程控制回路振荡诊断的一种简单方法

Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No.99CH36328) Pub Date : 1999-08-22 DOI:10.1109/CCA.1999.801157

A. Horch

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引用次数: 8

摘要

提出了一种诊断过程控制回路振荡的简单方法。该方法基于控制变量与回路输出之间的相互关系，能够正确诊断过程工业控制回路振荡的两个最重要原因，即外部振荡干扰和控制阀的静摩擦(粘滞)。

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A simple method for oscillation diagnosis in process control loops

A simple method for the diagnosis of oscillations in process control loops is presented. The new method is based on the cross-correlation between control variable and loop output and it is shown to correctly diagnose the two most important reasons for oscillations in control loops in the process industry, namely external oscillating disturbances and static friction (stiction) in control valves.

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来源期刊

Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No.99CH36328)

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