The invention discloses an auxiliary decision-making method and
system for regional
coal market purchase, and belongs to the technical field of
coal market purchase decision-making, and the method comprises the steps:
building model input parameters through collecting the data of a fire
coal demand plan of a power
plant, the maximum supply of a supplier, a coal quality index, a purchase price and a
transportation cost; constructing a mixed
integer linear programming model taking the minimization of the total
purchase cost as a target function, and setting a demand satisfaction constraint, a supply capability constraint and a coal
quality standard reaching constraint; solving the mixed
integer linear programming model by adopting a two-stage
approximation algorithm; and converting the obtained approximate optimal solution into a visual
purchasing scheme chart and report, and supporting a user to dynamically adjust the
purchasing scheme through an interactive interface to generate a final
purchasing decision. According to the invention, on the basis of comprehensively considering the coal quality, the
purchase cost, the transportation mode and the supplier capability, the coal purchase plan is optimized, the cost minimization is realized, and the overall quality of coal purchase is improved.