Optimal rescheduling method for steelmaking-continuous casting
Optimal rescheduling method for steelmaking-continuous casting
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发表时间：
2010
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通讯作者：
Chai Tianyou
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作者：
Chai Tianyou
炼钢-连铸生产过程中，由于生产费用的存在，重调度问题比静态调度问题复杂得多。本文将具有相同精炼阶段的炼钢-连铸生产重调度问题转化为复杂的混合流水车间调度问题，建立了基于实际生产约束和最小化完工时间的重调度模型，并以上海某钢铁厂的实际生产数据为例，对模型和求解方法进行了验证。
Disturbances upset the plan in steelmaking-continuous casting(SCC) production,which makes plan infeasible.Rescheduling is highly needed.Since producing charges exist,rescheduling problem is more complex than the static scheduling.In this paper,the rescheduling problem of SCC with the same refining phase is inducted a complex hybrid flow shop(HFS) scheduling problem.A rescheduling model is developed based on practical production constraints and minimizing makespan,which can be solved using hybrid genetic algorithm.The rescheduling model and the solving method have been validated by the practical production data of one iron and steel plant in Shanghai.