文献类型：期刊文献

英文题名：Enhanced batch process monitoring using just-in-time-learning based kernel partial least squares

作者：Hu, Yi[1];Ma, Hehe[1];Shi, Hongbo[1]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Adv Control & Optimizat Chem Proc, Shanghai 200237, Peoples R China

年份：2013

卷号：123

起止页码：15

外文期刊名：CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS

收录：;EI(收录号：20242716632861);WOS:【SCI-EXPANDED(收录号:WOS:000317451000003)】；

基金：This research is supported by the National Natural Science Foundation of China (no. 61074079) and Shanghai Leading Academic Discipline Project (no. B504).

语种：英文

外文关键词：Batch processes; Just-in-time-learning; Kernel partial least squares; Process monitoring

摘要：Batch process has the characteristics of dynamic behavior, strong nonlinearity and multiplicity of operation phases. In this paper, an integrated framework consisting of just-in-time-learning (JITL) method and kernel partial least squares (KPLS) is described for the monitoring of the performance of batch processes. The training data set for modeling is defined by using JITL, and KPLS is employed to build the model for process monitoring purpose. The JITL model based on local neighborhoods of similar samples is very accurate and sensitive because it can well track the change of the process. Therefore, the proposed method is suited for multiphase and time-varying batch processes. Meanwhile, KPLS is a very efficient technique for tacking complex nonlinear data sets. Furthermore, the proposed monitoring strategy does not require the estimation of future values of the process variables during online application. The effectiveness of the proposed monitoring approach is demonstrated through two sets of benchmark data. The comparison of monitoring results shows that the proposed JITL-KPLS approach is superior to multiway KPLS and hierarchical KPLS, and it can achieve accurate detection of various types of process faults occurring in the batch operation. (C) 2013 Elsevier B.V. All rights reserved.