An entropy-based evaluation model of operation order of steel manufacturing process

HAN Wei-gang; HU Chang-qing

doi:10.13228/j.boyuan.issn0449-749x.20200365

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Iron and Steel ›› 2021, Vol. 56 ›› Issue (5) : 122-128. DOI: 10.13228/j.boyuan.issn0449-749x.20200365

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An entropy-based evaluation model of operation order of steel manufacturing process

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Abstract

The quantitative evaluation of the operation order of the steel manufacturing process is an important issue in the management and control of steel enterprises. In order to quantitatively study the order of process from the aspect of connection and matching state of devices,referring to information entropy, the average uncertainty of input and output of unit i in the steel manufacturing process as its operation state entropy E(i)was defined,the ratio of operation state entropy and maximum operating state entropy E(i)/E_max(i) as its operation disorder degree was taken,and R(i)=1-E(i)/E_max(i) as its operation order degree was taken. On this basis,the weighted average value of the operation order degree of all units is defined as the operation order degree of the steel manufacturing process,which is used as the evaluation index of operation order of steel manufacturing process. Finally,the BOF-CC section of a steel enterprise is taken as an example,the operation order degree in a certain month is calculated to be 0.396 1.

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steel manufacturing process / operation state / order / evaluation model / entropy

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HAN Wei-gang, HU Chang-qing. An entropy-based evaluation model of operation order of steel manufacturing process[J]. Iron and Steel, 2021, 56(5): 122-128 https://doi.org/10.13228/j.boyuan.issn0449-749x.20200365

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