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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (4): 652-658    DOI: 10.3785/j.issn.1008-973X.2010.04.005
电子、通信与自动控制技术     
基于PCASVDD的故障检测和自学习辨识
祝志博, 王培良, 宋执环
1.浙江大学 工业控制技术国家重点实验室,工业控制研究所,浙江 杭州 310027；
2.湖州师范学院 信息工程学院,浙江 湖州 313000
PCA-SVDD based fault detection and selflearning identification
ZHU Zhibo1, WANG Peiliang2, SONG Zhihuan1
1. State Key Laboratory of Industrial Control Technology, Institute of Industrial Process Control, Zhejiang University,
Hangzhou 310027, China; 2. School of Information Engineering, Huzhou Teachers College, Huzhou 313000, China
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摘要：

为了利用多变量统计过程控制在故障检测上的优势以及克服其在故障辨识诊断上的缺陷,提出一套新的用于化工过程的故障检测和自学习辨识算法.应用主元分析（PCA）实施故障检测并对故障数据运用PCA特征提取,提出3种基于主元分析支持向量数据描述（PCASVDD）的模式判别方法来实现故障的自学习辨识：考虑故障辨识时可能出现的类分布重合问题,分析和比较了基于欧氏距离和归一化半径判别这2种方法,提出针对新型未知故障辨识的加权归一化半径判别法.通过对Tennessee Eastman（TE）过程的仿真研究,说明了提出的故障检测和自学习辨识算法的可行性和有效性.
Abstract:

In order to utilize the advantage of fault detection and to overcome the shortage of fault identification and diagnosis in the multivariable statistical process control, a new algorithm for chemical process fault detection and selflearning identification was proposed. Principal component analysis (PCA) was applied for fault detection and feature extraction, three pattern discriminant methods based on principal component analysissupport vector data description (PCASVDD) for fault selflearning identification were proposed. Considering the faults distribution overlapping problem which happened possibly in fault identification, two methods based on Euclid distance and unitary radius were analyzed and compared. A method based on weighted unitary radius for novel fault identification was also proposed. A case study of Tennessee Eastman (TE) process showed the feasibility and effectiveness of the proposed fault detection and selflearning identification algorithm.
出版日期: 2010-05-14
:  TP277  
基金资助:

国家自然科学基金资助项目（60974056,60736021）；浙江省自然科学基金资助项目（Y1080871）
通讯作者: 宋执环，男，教授，博导.     E-mail: zhsong@iipc.zju.edu.cn
作者简介: 1.浙江大学 工业控制技术国家重点实验室,工业控制研究所,浙江 杭州 310027； 2.湖州师范学院 信息工程学院,浙江 湖州 313000
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祝志博, 王培良, 宋执环. 基于PCASVDD的故障检测和自学习辨识[J]. J4, 2010, 44(4): 652-658.

CHU Zhi-Bo, WANG Pei-Liang, SONG Zhi-Huan. PCA-SVDD based fault detection and selflearning identification. J4, 2010, 44(4): 652-658.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.04.005    或    http://www.zjujournals.com/eng/CN/Y2010/V44/I4/652

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