关键词: 钢铁企业集团, 战略排产, 递阶优化, 二层规划

Abstract: Aiming at the hierarchical characteristics of the decision level and execution level in iron & steel enterprises group, the model of iron & steel enterprises group strategy production scheduling and planning based on theory of hierarchical optimization was proposed. The top level of the model included one decision-maker who regarded the maximum profits of per unit output in the group domain as the global object; the bottom level comprised N parallel subsystems which aimed to optimize the production process with the minimum cost in per production procedure of the single corporation which was subject to the constraints of equipments capabilities and resources configuration in each corporation. The model resolved the rough balance of production capabilities and materials requirements and realized the group strategy optimization.Genetic algorithm was introduced to resolve the model. Finally, the application case of the model was presented, and the results showed that this model and its algorithm were valid and feasible.

Key words: iron & steel enterprises group, strategy production scheduling & planning, hierarchical optimization, bi-level programming