[1]张妮,田学民,蔡连芳.基于改进动态等距离映射的非线性动态故障诊断方法[J].华侨大学学报(自然科学版),2012,33(6):621-626.[doi:10.11830/ISSN.1000-5013.2012.06.0621]
　ZHANG Ni,TIAN Xue-min,CAI Lian-fang.Nonlinear Dynamic Fault Diagnosis Method Based on Improved Isometric Mapping[J].Journal of Huaqiao University(Natural Science),2012,33(6):621-626.[doi:10.11830/ISSN.1000-5013.2012.06.0621]
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基于改进动态等距离映射的非线性动态故障诊断方法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第33卷
期数:
2012年第6期
页码:
621-626
栏目:
出版日期:
2012-11-20

文章信息/Info

Title:
Nonlinear Dynamic Fault Diagnosis Method Based on Improved Isometric Mapping
文章编号:
1000-5013(2012)06-0621-06
作者:
张妮;  田学民;  蔡连芳
中国石油大学(华东)信息与控制工程学院, 山东 青岛 266580
Author(s):
ZHANG Ni;  TIAN Xue-min;  CAI Lian-fang
College of Information and Control Engineering, China University of Petroleum(East China), Qingdao 266580, China
关键词:
动态等距离映射;  子流形;  非线性过程;  故障诊断;  主成分分析法
Keywords:
dynamic isometric mapping;  sub manifold;  non-linear process;  fault diagnosis;  principal component analysis
分类号:
TP277
DOI:
10.11830/ISSN.1000-5013.2012.06.0621
文献标志码:
A
摘要:
分析动态等距离映射算法,针对数据稀疏分布造成短路边的缺点,运用主成分分析法进行可视化一维主元提取,近似确定高维采样点的分布情况,自适应获取采样点的近邻参数.其次,采用流形距离量度代替欧氏距离进一步得到测地线距离,提取训练样本的子流形特征,并运用标准化监控统计量实施过程监控和故障检测.最后,设立子流形综合相似度指标,对故障数据进行模式匹配.TE(Tennessee Eastman)过程的仿真结果表明:所提出的方法可以更为有效地检测到故障发生,并进一步对发生的故障进行识别.
Abstract:
DISOMAP(dynamic isometric mapping)algorithm is analyzed in this paper. According to the shortcomings of short edge caused by data sparse distribution, PCA(principal component analysis)algorithm was used to extract one-dimensional visualization principal component, determining the distribution of sampling points approximately, acquiring the neighbor parameter of sampling point adaptively. Secondly, manifold distance instead of euclidean distance was defined to calculate geodesic distance furtherly. So the submanifold character could be extracted from the training sample. Standardized monitoring statistics were used in process monitoring application and fault detection. Finally, the similarity index was used for pattern matching in the sub-manifold fault database. Simulation results of TE(Tennessee Eastman)process show that improved dynamic isometric mapping(IDISOMAP)-based method is more effective for fault detection and fault identification.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2012-06-15
通信作者: 田学民(1956-),男,教授,主要从事过程控制及优化,故障检测与故障诊断的研究.E-mail:tianxm@upc.edu.cn.
基金项目: 山东省自然科学基金资助项目(ZR2011FM014); 中央高校基本科研业务费专项资金资助项目(10CX04046A)
更新日期/Last Update: 2012-11-20