Flue Gas Monitoring System With Empirically-Trained Dictionary

查看全文 作　　者：Hui [1]Cao;Yajie [2]Yu;Panpan [2]Zhang;Yanxia [3]Wang

机构地区：[1]Shaanxi Key Laboratory of Smart Grid and the State Key Laboratory of Electrical Insulation and Power Equipment,School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;[2]State Key Laboratory of Electrical Insulation and Power Equipment,School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;[3]School of Electronic and Electrical Engineering,University of Leeds,Leeds LS29JT,UK

出　　处：《IEEE/CAA Journal of Automatica Sinica》索引2020年第7卷第2期,共11页

基　　金：supported by the National Natural Science Foundation of China(61375055);the Program for New Century Excellent Talents in University(NCET-12-0447);the Natural Science Foundation of Shaanxi Province of China(2014JQ8365);the State Key Laboratory of Electrical Insulation and Power Equipment(EIPE16313);the Fundamental Research Funds for the Central University 摘　　要：The monitoring of flue gas of the thermal power plants is of great significance in energy conservation and environmental protection.Spectral technique has been widely used in the gas monitoring system for predicting the concentrations of specific gas components.This paper proposes flue gas monitoring system with empirically-trained dictionary(ETD)to deal with the complexity and biases brought by the uninformative spectral data.Firstly,ETD is extracted from the raw spectral data by an alternative optimization between the sparse coding stage and the dictionary update stage to minimize the error of sparse representation.D1,D2 and D3 are three types of ETD obtained by different methods.Then,the predictive model of component concentration is constructed on the ETD.In the experiments,two real flue gas spectral datasets are collected and the proposed method combined with the partial least squares,the background propagation neural network and the support vector machines are performed.Moreover,the optimal parameters are chosen according to the 10-fold root-mean-square error of cross validation.The experimental results demonstrate that the proposed method can be used for quantitative analysis effectively and ETD can be applied to the gas monitoring systems. 关键词：Dictionary learning empirically-trained dictionaty(ETD) flue gas monitoring system quantitative analysis

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Flue Gas Monitoring System With Empirically-Trained Dictionary

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