| 基于遗传算法的炼钢-连铸重计划方法 |
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| 作者姓名： | 龙建宇 郑忠 高小强 龚永民 呼万哲 |
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| 作者单位： | 1 重庆大学材料科学与工程学院, 重庆 400045; |
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| 基金项目： | 国家高技术研究发展计划（863计划）;国家自然科学基金;重庆市科技攻关计划重点项目 |
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| 摘 要： | 针对多约束的炼钢-连铸重计划问题，提出了一种按扰动时炉次的状态进行炉次分类求解的重计划方法.将重计划问题中的约束分成强制约束和柔性约束两类，针对正在作业炉次设计了基于时间顺推和遗传算法的混合算法，针对未作业炉次设计了基于时间倒推和遗传算法的混合算法，通过强制约束结合混合算法搜寻可行解，然后在可行解中利用柔性约束搜寻最优解.采用钢厂的生产实绩数据进行仿真实验验证了该方法的可行性和有效性.
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| 关 键 词： | 炼钢 连铸 生产计划 调度 遗传算法 |
| 收稿时间： | 2013-04-08 |
Production re-planning based on genetic algorithm for steelmaking-continuous casting |
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| Affiliation: | 1 College of Material Science and Engineering, Chongqing University, Chongqing 400045, China;2 College of Economics and Business Administration, Chongqing University, Chongqing 400044, China;3 Vanadium-extracting and Steel-making Plant, Panzhihua Iron and Steel (Group) Co., Panzhihua 617000, China |
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| Abstract: | An approach, whose hardcore is a classification of charges by determining whether the charge starts at the time of disturbance occurrence, of making a re-plan was proposed to solve the problem of multi-constrained steelmaking-continuous casting re-planning. The constraints of the re-planning problem are divided into hard and soft constraints. A hybrid algorithm based on time forward inferring and genetic algorithm is designed for the processing charges, and another hybrid algorithm based on time backward inferring and genetic algorithm is designed for the un-processing charges. The feasible solution of the re-planning problem is solved with the hybrid algorithm and hard constraints, and the optimal solution is searched with the soft constraints in the feasible solution. The feasibility and effectiveness of the method were verified with the help of simulation experiments by production data in a steel plant. |
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