Oscillation Detection and Diagnosis in a Chemical Plant

摘要：

This paper deals with the detection and diagnosis of plant-wide oscillations present in a Singapore chemical plant. We propose an improved independent components analysis (ICA) based method and apply it to detect the oscillations present in the process. A Higher Order Statistical method followed by the use of pv-op plots detected stiction in a control loop, which is determined to be the root cause of the oscillations. The presence of valve stiction is further confirmed by employing the controller gain change method. These methods successfully identified the root cause of the oscillations for the industrial case study using routine operating data.

关键词： Independent Component Analysis Industrial application Plant-wide Oscillations Stiction.

作者: Tan Chee Kiong Tan Wei Teck Muthu Velmurugan Vinay Kariwala S.Lakshminarayanan

作者单位: Department of Chemical and Biomolecular Engineering National University of Singapore,Singapore 11757 Division of Chemical and Biomolecular Engineering Nanyang Technological University,Singapore 637459

会议类型: 国际会议

会议名称: 第四届亚洲过程系统工程会议暨2007年中国国际系统工程年会(The 4th International Symposium on Design,Operation & Control of Chemical Processes)(PSE ASIA 2007)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）