Steel enterprise gas steam system joint scheduling method based on multi-objective optimization

Abstract

The invention provides an iron and steel enterprise gas and steam system joint scheduling method based on multi-objective optimization. The method comprises the steps that S1, gas, steam and electric power operation data and corresponding production equipment parameters and actual operation constraints are collected; s2, respectively establishing steam and gas subsystem models according to the operation data obtained in the step S1, the production equipment parameters and actual operation constraints, so as to obtain steam generated by each piece of equipment at a unit moment, evaluating parameters including gas flow, distributable quantity of various kinds of gas at unit moment, consumption of various kinds of gas of various devices at unit moment, and demand quantity of system steam at unit moment; and S3, establishing a multi-target evaluation strategy to calculate the gas and steam emission amount per unit moment according to the evaluation parameters obtained in the step S2. Therefore, target optimization is realized, and unnecessary energy emission is reduced.

Description

technical field [0001] The invention relates to the technical field of energy dispatching management, in particular to a joint dispatching method for a gas and steam system of an iron and steel enterprise based on multi-objective optimization. Background technique [0002] Iron and steel enterprises are major energy consumers in the manufacturing industry, and the problem of high energy consumption has increasingly become an important problem restricting the development of the iron and steel industry. There are many energy-saving measures for iron and steel enterprises, such as improving the technological process, improving the energy efficiency of equipment, optimizing the energy scheduling method, etc. Among them, optimizing the energy scheduling method and improving the energy utilization rate are easier to implement than other energy-saving measures, and have a large energy-saving space. An important breakthrough for steel enterprises to save energy and reduce consumptio...

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Problems solved by technology

[0006] However, most of the above methods are planned separately and operated relatively independently for the single energy medium of iron and steel enterprises, mainly focusing on single medium such as gas, steam, electricity, and oxygen, among which gas dispatching is the majority, which makes the boundary of the problem clear to a certain extent and improves A certain energy utilization efficiency, but for the whole system, it only achieves local optimization, not multi-objective optimization

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