Multi-objective optimization scheduling method based on iron and steel enterprise energy system

Abstract

The invention provides a multi-objective optimization scheduling method based on an iron and steel enterprise energy system. The method comprises steps: the network topology of the iron and steel enterprise energy system, schedulability key device information and energy production and consumption historical data in a past scheduling period are acquired; according to the energy production and consumption historical data, a training data set is built, and according to energy production and consumption data corresponding to a production working condition in a future scheduling period, a prediction data set is built; through the training data set, a trained BP neural network is acquired; the prediction data set is substituted to the trained BP neural network for processing to acquire first prediction data for supply and demand for a gas system, a steam system, and a power system in the future scheduling period; and according to the first prediction data, an economic scheduling model, an environment cost model, a schedulability key device model and constraints, a multi-objective optimization scheduling model is built, the multi-objective optimization scheduling model is solved, and the optimal solution for the energy system is acquired. The above method ensures convergence of the calculation process, and the optimal scheduling scheme can be acquired.

Description

technical field [0001] The invention belongs to the field of energy dynamic balance and optimal scheduling of iron and steel enterprises, and in particular relates to a multi-objective optimal scheduling method based on the energy system of iron and steel enterprises. Background technique [0002] The iron and steel industry is a basic pillar industry of the national economy, a typical process-based industry, and a resource- and energy-intensive industry. It has the following characteristics: On the one hand, the production process of iron and steel enterprises is long, with various processes and equipment, and the processes are connected with each other, and each process and equipment are associated with multiple energy media; on the other hand, the types of energy that iron and steel enterprises need to use More than 20 types, among which the most important energy media are gas, steam, and electricity. These energy media not only have various forms of production and consum...

AI Technical Summary

Problems solved by technology

For such complex strong constraints and multi-objective optimization problems, the solution process may not converge, and the optimal scheduling scheme cannot be output

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