Integrated FDD system for valve stiction in a paperboard machine

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• 作者：Octavio Pozo Garcia ; ^{octavioado@gmail.com} ; Vesa-Matti Tikkala ; Alexey Zakharov ; Sirkka-Liisa Jä ; msä ; -Jounela
• 关键词：Fault detection and diagnosis ; Valve ; Oscillations ; Shape analysis ; Stiction ; Industrial application
• 刊名：Control Engineering Practice
• 出版年：2013
• 出版时间：June, 2013
• 年：2013
• 卷：21
• 期：6
• 页码：818-828
• 全文大小：1612 K

文摘

The performance of a modern industrial plant can be severely affected by the performance of its key devices, such as valves. In particular, valve stiction can cause poor performance in control loops and can consequently lower the efficiency of the plant and the quality of the product. This paper presents an integrated FDD system for valve stiction which employs various FDD methods in a parallel configuration. A reliability index was integrated into each method in order to estimate their degree of influence in the final diagnosis of the system. Each method and the integrated system were tested using industrial data.