炼钢厂生产实时调度的动态网络建模及调度策略优化方法

项目名称： 炼钢厂生产实时调度的动态网络建模及调度策略优化方法

项目编号： No.51474044

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 矿业工程

项目作者： 郑忠

作者单位： 重庆大学

项目金额： 89万元

中文摘要： 炼钢厂生产实时调度问题既是钢铁企业制造执行的关键技术，相关建模与优化方法也是先进制造领域调度理论的科学难题。项目将炼钢生产实时调度问题描述为调度计划排程、调度指令确定和扰动下调度策略的递进式调度问题，以实现炼钢生产调度自动化为目标，以已建立的基于调度实景快照的调度计划编制模型为基础，研究综合考虑生产工艺和调度目标及约束，特别是铁水资源约束、生产过程不确定性影响的建模与调度策略优化方法；以建立基于调度任务的元胞自动机动态网络模型为核心，设计表达实时调度过程特征的模型自组织和他组织演化机制；提出基于数据的云模型及推理机，实现调度任务作业时间的有限随机确定；研究生产扰动的实时识别及分类处理机制，揭示扰动影响规律，建立调度计划执行的失效范围和程度判据，进行调度微调、调度修复和重计划的重调度策略自动调整及人机协同优化决策。研究对丰富生产调度理论、提高我国钢铁企业核心竞争力有重要意义。

中文关键词： 实时调度；钢厂生产；调度计划；调度策略；建模与优化

英文摘要： The real-time scheduling problem in a steel plant is one of the critical technologies of manufacturing execution in a steel corporation. The modeling and optimization methods of the scheduling problem are also a challenging scientific problem in the scheduling theory. In this project, the real-time scheduling problem is described a progressive scheduling problem which contains three stages: scheduling,scheduling instructions determining and making scheduling strategy under disturbances. In order to realize the automation of scheduling in a steelmaking plant, the project focuses on the methods of modeling and scheduling strategy optimization with the comprehensive consideration of the objectives and constraints of manufacturing technique and scheduling, especially the constraint of hot metal supply and the influence of uncertainty in production process, based on the established scheduling model which can make a schedule by considering the a snapshot current production environment as initial constraints. With the core of establishing a dynamic network model of cellular automation based on scheduling task, evolutionary mechanism of self-organization and other-organization of the dynamic network are designed to depict the characteristics in real-time scheduling process. The cloud model based on data and the inference engine are provided to determine the processing time of scheduling task in a stochastic production environment. The research work will identify and classify mechanism of production disturbances, reveal the influence regularity of production disturbances, and establish the criterion to judge the invalid scope and degree of the schedule during the period of execution, to realize the automatic adjustment and human-computer collaborative optimization of scheduling strategy, which contains scheduling fine tuning, scheduling repair and re-planning, in real-time production process. The research is expected a great deal to enrich the scheduling theory and boost the core competition of iron and steel corporation in our country.

英文关键词： real-time scheduling;steel plant production;scheduling;scheduling strategy;modeling and optimization