面向在线调合的原油管输滚动调度方法研究

目前原油调度方案多采用人工经验或数学规划方法进行编制，存在难以匹配原油在线调合技术以及求解规模过大等问题。针对炼油行业典型原油管输调度工艺，设计了在线调合的原油管输滚动调度方法，将全时段调度周期切割为若干个等长的短周期，使用混合整数规划法建模，采用滚动优化方法将原油调合需求纳入原油调度模型的目标函数及约束中，求解模型得到全时段调度方案。结果表明，对于在原油调合配方变化背景下调度周期为168 h的原油管输调度问题，采用该方法可使原油调度与调合更加匹配，且能快速找到适应原油调合变化的最优原油调度方案，有利于提升炼油企业经济效益。

RESEARCH ON RECEDING HORIZON SCHEDULING METHOD OF CRUDE OIL PIPELINE TRANSPORTATION CONSIDERING ONLINE BLENDING

Most crude oil scheduling schemes are compiled by personnel experience or mathematical programming methods in refinery industries. It is difficult to meet the requirements of the crude oil online blending or to reduce the scale of optimization by these methods in real practice. For the typical crude oil pipeline scheduling process, a receding horizon scheduling method was developed in which crude oil blending demands were considered. The mixed-integer programming was employed first to establish the crude oil scheduling model, and then the blending demands were incorporated into the constraints as well as the objective function. By dividing the whole scheduling period into several short ones, the receding horizon optimization was implemented to solve this problem. The results indicate that with the scheduling period of 168 h, the crude oil pipeline scheduling problem can be successfully resolved by the proposed method under the condition of dynamic crude oil blending formula. Obviously, this method can make the crude oil scheduling match the crude oil blending demand much better, and the more economical crude oil scheduling scheme can be found quickly, thereby greatly promoting the economic efficiency of the refineries.