Optimal scheduling model of power system in iron and steel enterprises

• 1、School of Metallurgy and Ecology Engineering，University of Science and Technology Beijing，Beijing 100083，China

Abstract：The energy structure of iron and steel enterprises is complex and involves a wide variety of energy media, and different energy medium influence each other. In addition to meeting the energy supply and demand balance under different production conditions, the iron and steel enterprise\'s energy distribution also needs to meet the multiple goals of the minimizing energy consumption cost (with the greatest economic benefits), minimizing emission of gas pollutant and greenhouse gas, the highest safety coefficient of gasholder and gas pipeline. Aiming at the above characteristics of energy scheduling in iron and steel enterprises, a multi-objective optimal distribution model for multi-energy medium is proposed with mathematical programming. The case analysis was carried out based on the actual data of S steel plant. The computational results demonstrate that the optimal energy cost is reduced by 5.4% compared to that from actual operation. The influence of the price of by-product gas and the pollution cost of different contaminants on the energy medium distribution has been analyzed by using the model.?????

Keywords： Iron and steel metallurgy：Multi energy medium：Multi-objective optimization