Fault diagnosis of nonlinear process based on KCPLS reconstruction

被引：44
|
作者：
Zhang, Yingwei [1 ]
Sun, Rongrong [1 ]
Fan, Yunpeng [1 ]
机构：
[1] Northeastern Univ, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Liaoning, Peoples R China
来源：
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS | 2015年 / 140卷
关键词：
Kernel concurrent projection to latent structure (KCPLS); Fault reconstruction; Fault diagnosis; Fault-relevant direction; PARTIAL LEAST-SQUARES; LATENT STRUCTURES; TOTAL PROJECTION; MULTISCALE KPLS; IDENTIFICATION; RELEVANT; MODEL;
D O I：
10.1016/j.chemolab.2014.10.002
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a new kernel concurrent projection to latent structure (KCPLS) reconstruction method for process monitoring is proposed. The main contributions of the proposed approach are as follows: (1) the KCPLS method provides a complete monitoring of faults that happen in the predictable output subspace and the unpredictable output-residual subspace; (2) after the fault reconstruction approach is proposed, the fault-relevant direction is determined; (3) the fault is effectively diagnosed compared to the conventional KPLS method. The proposed method is applied to penicillin fermentation process and is compared to the KPLS method. Experiment results show that the KCPLS can more accurately detect the fault compared to the KPLS method. In addition, the fault-relevant direction is identified more effectively by using the KCPLS reconstruction algorithm compared to the KPLS reconstruction approach. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：49 / 60
页数：12
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