Open AccessA Novel Prediction Algorithm for the Cross Temperature Estimation of Blast Furnace
Author(s) -
Yan Jin,
Sen Zhang,
Yixin Yin
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/533/1/012035
Subject(s) - extreme learning machine , support vector machine , autocorrelation , blast furnace , algorithm , computer science , moment (physics) , least squares function approximation , stability (learning theory) , data mining , artificial intelligence , machine learning , mathematics , artificial neural network , statistics , chemistry , physics , organic chemistry , classical mechanics , estimator
In order to predict the distribution of gas flow, we need to get the temperature of each point in blast furnace throat in advance. In this paper, firstly, two intelligent modeling methods are used to establish a multiple-input multiple-output prediction model, one is extreme learning machine (ELM) algorithm and the other is online sequential extreme learning machine (OS-ELM) algorithm. And the model is a single-step prediction model of temperature in blast furnace, single-step prediction means the prediction of temperature in the next moment. We use autocorrelation analysis to determine input vector and output vector of the model. The result of autocorrelation analysis indicates that the method of temperature sequence prediction has a higher prediction accuracy and better prediction stability than the method of single point prediction. Next, based on real industrial data, we make a comparison between the multiple - input multiple-output model and least squares support vector machines (LS-SVM) model used in common. The experiment results show that OS-ELM model has a better forecast effect than the ELM model and LS-SVM model.