Fuel gas

steam and power are important components of energy systems in integrated iron and steel works

which consists about 60% of total energy consumption. Reasonable development of energy output

fuel consumption and power purchase plan has very important significance in cost reduction and pollution control in integrated iron and steel works. Based on characteristics of fuel structure

equipment types and operating conditions

a coupled system optimization model was established to minimize both economic and environmental costs. With consideration of influencing factors

such as fluctuation of excess fuel gas

dynamic demand of steam and electricity

multi-fuel structure and external time-segmented price

the optimal scheduling plan for energy system was solved by GAMS software. The simulation results of the model applied to a large steel company show that the model can effectively provide a reasonable production plan of fuel gas-steam-power system

regulate excess fuel gas

efficient energy use

reduce operation cost

and increase economic and environmental benefits.