基于递阶排产法的原油系统排产建模  

MODELING AND SCHEDULING OF REFINERY CRUDE SYSTEMS WITH A HIERARCHICAL SCHEDULING APPROACH

作　　者：李雷[1] 李秀喜[1] 钱宇[1] 

机构地区：[1]华南理工大学化工学院,广东广州510640

出　　处：《石油学报（石油加工）》2005年第1期88-94,共7页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家杰出青年基金( 20225620 );国家基金( 20376025 );国家重大基础研究规划 973 项目( G20000263 );广东省科技厅(2004B50101002);广东省教育厅资助项目

摘　　要：炼油厂原油系统排产模型属于非多项式可求解问题(NP), 模型的复杂性和求解速度一直阻碍着模型的应用。提出了操作活动聚合的递阶排产法, 简化了原油系统排产模型, 并大幅度地降低了模型的求解时间。采用集成库存管理的方法改进了模型求解方案, 通过平衡物料的库存来保证生产的稳定性。基于操作活动聚合的递阶排产方法对具有一个码头和一条传输管线的中等规模炼油厂进行了案例研究。其码头最大库存量为4.8×105 t, 库存的经验安全下限是 7. 2×105 t; 厂区最大库存量为 2×105 t, 其库存的经验安全下限是1×105 t。案例研究表明, 基于操作活动聚合的递阶排产法有效地减少了模型的离散变量和方程的数量。The scheduling model of refinery crude system is a kind of non-polynomial problem (NP). The application of the scheduling model has long been impeded by its complexity and the length of solving time to work out the solution for the mathematical model. A hierarchical scheduling approach is presented by a simplified scheduling model of refinery crude system with both reduced problem scale and length of solving time. The integrated inventory management method is adopted to solve the problem with improved stability and flexibility of production by balancing the inventory of materials. Based on the hierarchical scheduling of integrated operation activities, case study was worked on a medium-size refinery having 1 dock and 1 downloading outlet device. The maximum inventory volume of the dock was 4.8 × 105 t, the lower limit of experienced safety inventory volume was 7.2 × 105 t. The maximum inventory volume inside the plant area was 2 × 105 t, the lower limit of experienced safety inventory volume was 1 × 105 t. Results showed that the scheduling solving time was greatly reduced, and much less discrete variables and equations are used in this model.

关 键 词：炼油厂原油系统 排产模型 递阶排产法 

分 类 号：O221[理学—运筹学与控制论] TE62[理学—数学]