基于自编码的长流程造纸过程断纸故障识别  

Paper Break Fault Recognition in Long Process Papermaking Process Based on Autoencoder

作　　者：陈国健 李继庚[1] 陈波 满奕[1] 何正磊 CHEN Guojian;LI Jigeng;CHEN Bo;MAN Yi;HE Zhenglei(State Key Lab of Pulp and Paper Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640;Xi’an Aerospace Automation Co.,Ltd.,Xi’an,Shaanxi Province,710065)

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [2]西安航天自动化股份有限公司,陕西西安710065

出　　处：《中国造纸》2024年第3期113-120,141,共9页China Pulp & Paper

基　　金：广州市基础与应用基础研究(202201010356,2023A04J1367);制浆造纸国家重点实验室重点项目(2022ZD02);中央高校基本科研业务费专项资金资助(2023ZYGXZR100)。

摘　　要：断纸故障造成的非预期停机对生产效率影响较大,预测和识别断纸故障对造纸工业具有重要意义。本研究提出了一种基于堆栈自编码器(stacked autoencoder,SAE)和Softmax分类器的断纸故障分类和识别方法,通过相关性分析与机理分析相结合的方式筛选出关键过程变量,并采用聚类方法对断纸故障进行类型标记。建立并训练SAE模型以提取数据中的深度特征,并基于提取后的特征,可通过Softmax分类器识别断纸故障。以造纸厂历史数据进行验证,得到该模型的断纸故障分类准确率为96.2%,精准率为93.1%,召回率为91.9%,结果优于其他模型,说明基于SAE特征提取的分类模型可以较好地实现断纸故障识别。Paper breaks leading to unanticipated downtime can significantly impact the production efficiency,the prediction and diagnosis of paper break is rather important for the papermaking industry.In this study,a method of paper break fault classification and identification based on stacked autoencoder(SAE)and Softmax classifier was proposed to select the key process variables by combination of correlation analysis and mechanism analysis,and adopt clustering method to label the type of paper breaks.SAE model was established and trained to extract deep features from the data,and paper break faults were identified based on the extracted features using a Softmax classifier.Validat‐ed using historical data from a paper mill,and the model results were better than those of other machine learning models,with achieving the paper break classification accuracy of 96.2%,the precision of 93.1%,and the recall rate of 91.9%,which indicated that the classification model based on SAE feature extraction could effectively identify paper break faults.

关 键 词：造纸 特征提取 堆栈自编码器 故障识别 

分 类 号：TS736[轻工技术与工程—制浆造纸工程] TP273[自动化与计算机技术—检测技术与自动化装置]