基于SPA相似系数的故障识别方法

doi:10.3969/j.issn.0438-1157.2013.12.035

化工学报 ›› 2013, Vol. 64 ›› Issue (12): 4503-4508.DOI: 10.3969/j.issn.0438-1157.2013.12.035

基于SPA相似系数的故障识别方法

张汉元, 田学民, 邓晓刚

中国石油大学(华东)信息与控制工程学院, 山东青岛 266580

收稿日期:2013-08-16 修回日期:2013-08-29 出版日期:2013-12-05 发布日期:2013-12-05
通讯作者: 田学民
作者简介:张汉元（1991- ），男，硕士研究生。
基金资助:
国家自然科学基金项目（61273160）；山东省自然科学基金项目（ZR2011FM014）。

Fault identification method based on SPA similarity factor

ZHANG Hanyuan, TIAN Xuemin, DENG Xiaogang

College of Information and Control Engineering, China University of Petroleum, Qingdao 266580, Shandong, China

Received:2013-08-16 Revised:2013-08-29 Online:2013-12-05 Published:2013-12-05
Supported by:
supported by the National Natural Science Foundation of China (61273160) and the Natural Science Foundation of Shandong Province (ZR2011FM014).

摘要/Abstract

摘要： 传统的主元分析（PCA）相似系数法没有充分利用数据的高阶统计量等有用的过程信息，导致故障识别效果较差。针对此问题，提出一种统计量模式分析（SPA）相似系数法。该方法首先使用SPA将原始数据转换到统计量空间中，然后在统计量空间中利用PCA获取主元方向，计算主元之间的相似性识别故障。在连续搅拌反应器（CSTR）过程上的仿真结果说明提出的SPA相似系数法比传统的PCA相似系数法能更有效地识别故障。

关键词: 统计量模式分析, PCA相似系数, 故障检测, 故障识别

Abstract: The traditional principal component analysis (PCA) similarity factor method does not make full use of the higher-order statistics of the process data,which results in degraded fault identification performance.In order to solve this problem,a statistics pattern analysis (SPA) similarity factor method is proposed in this paper.Firstly,the original process data are transformed into the statistics space by using the SPA.Then,the PCA is adopted to obtain the principal component directions in the statistics space.Finally,the similarity between the principal components is calculated to identify faults.Simulation results on the continuous stirring tank reactor (CSTR) process show that the proposed SPA similarity factor method is more effective than the traditional PCA similarity factor method in terms of identifying faults.

Key words: statistics pattern analysis, PCA similarity factor, fault detection, fault identification

中图分类号:

TP277

张汉元, 田学民, 邓晓刚. 基于SPA相似系数的故障识别方法[J]. 化工学报, 2013, 64(12): 4503-4508.

ZHANG Hanyuan, TIAN Xuemin, DENG Xiaogang. Fault identification method based on SPA similarity factor[J]. CIESC Journal, 2013, 64(12): 4503-4508.

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基于SPA相似系数的故障识别方法

Fault identification method based on SPA similarity factor

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