The invention provides a power generation
cost optimization method for an iron and steel enterprise, and belongs to the technical field of comprehensive
power saving in iron and steel enterprises. The power generation
cost optimization method comprises the following steps: a dispatching cycle T which needs power generation
cost optimization is determined, and power generation cost optimization parameters of a set are acquired; a network cross section used for planning a current power generation schedule is acquired; fuel cost of the generator set under the condition of
coal gas blending combustion in the cycle is determined; according to the
energy consumption of the set of the iron and steel enterprise, external
electricity purchasing cost and an external
power transmission income physical truth, an optimized dispatching model which aims for the lowest power generation cost of a whole
system is established; results of self-generating set output, externally purchased
electricity, externally transmitted electric quantity and the like of the iron and steel enterprise are obtained according to an optimization solution. The power generation cost optimization method for the iron and steel enterprise has the advantages of being capable of meeting requirements for production loads, generator set output, line transmission capacity and the like, guaranteeing safe and reliable operation of a grid of the iron and steel enterprise, further optimizing and adjusting self-generating
electricity output and a proportional relation between self-generated electricity and externally purchased electricity in combination with a load prediction curve and a production and repair schedule, and enabling the generation cost of the iron and steel enterprise to be the lowest.