基于稀疏残差距离的多工况过程故障检测方法研究

郭小萍; 刘诗洋; 李元

doi:10.16383/j.aas.c170389

基于稀疏残差距离的多工况过程故障检测方法研究

doi: 10.16383/j.aas.c170389

郭小萍^1,,
刘诗洋^1,,
李元^1, ,

1.
沈阳化工大学信息工程学院沈阳 110142

基金项目:

辽宁省教育厅重点实验室项目 LZ2015059

辽宁省自然科学基金 201602584

国家自然科学基金 61673279

辽宁省教育厅项目 L2015432

国家自然科学基金 61490701

辽宁省教育厅项目 L2016007

详细信息

作者简介:
郭小萍沈阳化工大学信息工程学院副教授.2006年获得东北大学博士学位.主要研究方向为基于数据驱动技术的复杂过程故障检测与诊断.E-mail:gxp2001@sina.com

刘诗洋沈阳化工大学信息工程学院硕士研究生.主要研究方向为基于数据驱动的多工况过程故障检测.E-mail:liusy2018@sina.com

通讯作者:
李元沈阳化工大学信息工程学院教授.2005年获得东北大学博士学位.主要研究方向为基于数据驱动技术的复杂过程故障检测与诊断.本文通信作者.E-mail:li-yuan@mail.tsinghua.edu.cn

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出版历程
- 收稿日期: 2017-07-13
- 录用日期: 2018-02-07
- 刊出日期: 2019-03-20

Fault Detection of Multi-mode Processes Employing Sparse Residual Distance

GUO Xiao-Ping^1
,,
LIU Shi-Yang^1
,,
LI Yuan^{1
, ,}

1.
College of Information Engineering, Shengyang University of Chemical Technology, Shenyang 110142

Funds:

Department of Education Key Laboratory Project of Liaoning Province LZ2015059

Natural Science Foundation of Liaoning Province 201602584

National Natural Science Foundation of China 61673279

Foundation of Liaoning Educational Committee L2015432

National Natural Science Foundation of China 61490701

Foundation of Liaoning Educational Committee L2016007

More Information

Author Bio:
Associate professor at the Institute of information engineering, Shenyang University of Chemical Engineering. She received her Ph. D. degree from Northeastern University in 2006. Her research interest covers data-driven based techniques for complex process fault detection and diagnosis

Master student at the Institute of Information Engineering, Shenyang University of Chemical Engineering. Her research interest covers data-driven based techniques for multiple operating conditions fault detection

Corresponding author: LI Yuan Professor at the Institute of information engineering, Shenyang University of Chemical Engineering. She received her Ph. D. degree from Northeastern University in 2005. Her research interest covers data-driven based techniques for complex process fault detection and diagnosis. Corresponding author of this paper

摘要

摘要: 针对多工况过程，本文提出一种新的基于稀疏残差距离（Sparse residual distance，SRD）统计指标的故障检测方法.首先对正常的多工况标准化后数据直接进行稀疏分解，提取多个工况数据间相关关系，得到字典和对应的稀疏编码，以便构建全局检测模型，避免分工况且突出数据特征.然后计算正常多工况数据的近似值，构建稀疏残差空间，提出计算稀疏残差k近邻距离构建故障检测统计量，利用k近邻捕捉过程具有的非线性、多工况特征.最后通过数值案例和TE（Tennessee Eastman）生产过程进行仿真实验，验证了所提方法的有效性.
- 稀疏残差距离 /
- 稀疏分解 /
- k近邻距离 /
- 多工况过程 /
- 故障检测
Abstract: For multi-mode processes, a new fault detection method employing sparse residual distance (SRD) is proposed in this paper. Firstly, standardized normal multi-mode process data is directly used for sparse decomposition to extract correlation between multi-mode data, and a global detection model is established using the obtained dictionary and corresponding sparse coding, so as to avoid distinguishing modes and highlight data characteristics. Then calculating the approximate value of the normal multi-mode process data to construct the sparse residual space, in which sparse residual k-nearest neighbor distance is proposed, thus the nonlinear and multi-mode features of the process can be captured further by using k-nearest neighbor. Finally, the effectiveness of the proposed method is verified by a numerical example and the Tennessee Eastman (TE) production process.
- Sparse residual distance /
- sparse decomposition /
- k-nearest neighbor distance /
- multi-mode processes /
- fault detection
注释:

1) 本文责任编委王伟

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图 1 过程检测模型建立流程图

Fig. 1 Flow chart of establishing process detection model

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图 2 数值投影图

Fig. 2 Numerical data projection

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图 3 SRD故障检测结果

Fig. 3 Fault detection results by SRD

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图 4 TE过程工艺流程图

Fig. 4 TE process flow chart

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图 5 数据投影图

Fig. 5 Data projection

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图 6 故障6故障检测结果

Fig. 6 Fault 6 fault detection results

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图 7 故障13故障检测结果

Fig. 7 Fault 13 fault detection results

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表 1 TE过程故障

Table 1 Failures of TE process

故障编号	性质描述	变化类型
IDV 1	物料A/C进料比改变, 物料B含量不变	阶跃
IDV 2	物料A/C进料比不变, 物料B含量改变	阶跃
IDV 4	反应器冷却入口温度改变	阶跃
IDV 6	物料A进料损失	阶跃
IDV 7	物料C压力损失	阶跃
IDV 13	反应动力学参数改变	慢偏移
IDV 16	未知	未知

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表 2 本文采用的TE过程生产模式

Table 2 TE process production model used in this paper

生产模式	G/H比率	产品生产率
1	50/50	7 038 kgh-1 G和7 038 kgh-1 H
3	90/10	1 000 kgh-1 G和1 111 kgh-1 H
"kgh-1 G"表示"每小时生产多少千克的G产品", "kgh-1 H"表示"每小时生产多少千克的H产品".

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表 3 误报率及检测率汇总表

Table 3 False alarm rate and detection rate summary table

故障号	KSVD-R				SRD
故障号	误报率(%)		检测率(%)		误报率(%)		检测率(%)
1	4.50	0.10	100	100	2.00	0	100	100
2	4.50	0.10	100	98.6	2.00	0	100	100
4	4.50	0.10	100	100	2.00	0	100	100
6	4.50	0.10	100	100	2.00	0	100	100
7	4.50	0.10	100	100	2.00	0	100	100
13	4.50	0.10	89.6	82.1	2.00	0	97.8	90.2
16	4.50	0.10	94.6	90.2	2.00	0	98.6	94.7
注1:表 3中误报率和漏报率下属两列数据, 靠前的一列为控制限为95%的数值, 靠后的一列为控制限为99%的数值

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