摘要
成品油管道系统能否经济、高效地运行,关键在于运营单位编制与执行调度计划的水平。由于成品油管道是一个复杂的密闭水力系统,仅约束流量难以保证管道总体运行达到最优。当前,国内外学者针对成品油管道调度优化问题展开大量的研究,但少有研究将水力约束耦合在内。本文以调度周期内体积总偏差最小为目标函数,综合考虑了注入、分输、泵站、批次运移、水力等约束,建立了连续时间的混合整数非线性规划(MINLP)模型,并将其分解成整数规划(IP)问题及混合整数线性规划(MILP)问题求解。而后,利用提出的优化模型求解出某条成品油管道的具体优化调度方案和启泵方案。调度周期为179.7 h,计算时间180.32 s。调度计划满足现场需求,结果表明模型实用、高效。
The economic and efficient operation of multi-product pipelines is crucially determined by preparing and implementing scheduling plans in operating units. Considering the multi-product pipeline is a complicated closed hydraulic system, the flowrate constraints alone cannot guarantee the optimization for overall pipeline operation. At present, domestic and foreign scholars are undertaking a lot of research into scheduling optimization for multi-product pipelines while mostly neglecting hydraulic constraints. In this paper, an objective function is established to minimize the total volume deviation in scheduling periods, comprehensively considering the injection, delivery, pump stations, batch migration and hydraulic constraints. A continuous-time mixed integer nonlinear programming(MINLP) model is put forward and solved by decomposing the model into integer programming(IP) and mixed integer linear programming(MILP) issues. Moreover, the proposed optimization model is put into practice for a real-world multi-product pipeline and works out the detailed optimal scheduling plan and pumping plan accordingly. Results show that the scheduling period is 179.7 hours and the calculation time is 180.32 seconds. The scheduling plan can be compliant with field requirements, which indicates the efficiency and reliability of the model.
出处
《石油科学通报》
2017年第1期115-122,共8页
Petroleum Science Bulletin
基金
国家自然科学基金(No.51474228)资助
