Simulation-based rescheduling strategy of tank farm operations in refinery

WANG Zihao; RONG Gang; FENG Yiping

doi:10.3969/j.issn.0438-1157.2012.09.013

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Simulation-based rescheduling strategy of tank farm operations in refinery

更新时间：2025-12-10

- Simulation-based rescheduling strategy of tank farm operations in refinery
- CIESC Journal Issue 9, Pages: 2755-2765(2012)
- 作者机构：
  
  浙江大学智能系统与控制研究所, 工业控制技术国家重点实验室,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.09.013
  CLC： Q021.8
- Online First：05 September 2012，
  
  Published：05 September 2012
- 稿件说明：
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WANG Zihao, RONG Gang, FENG Yiping. Simulation-based rescheduling strategy of tank farm operations in refinery[J]. CIESC Journal, 2012, (9): 2755-2765.
DOI：

WANG Zihao, RONG Gang, FENG Yiping. Simulation-based rescheduling strategy of tank farm operations in refinery[J]. CIESC Journal, 2012, (9): 2755-2765. DOI： 10.3969/j.issn.0438-1157.2012.09.013.

摘要

针对炼油厂操作过程中所存在的大量操作不确定性

提出了一种基于两层仿真系统的再调度方法保证了调度指令的稳定性。在下层模型中引入罐区操作的不确定干扰

并对初始优化方案进行仿真。上层仿真系统采用启发式寻优的方法

当下层干扰发生后得到保证组分和物料双重平衡的安全方案。基于此安全方案

通过固定混合整数线性优化模型中的二元变量并对方案的偏离进行惩罚从而缩小可行域快速得到局部优化解。以某炼厂罐区操作为例

验证了这一再调度策略的有效性。

Abstract

To enhance the robustness of the scheduling in refinery with operational uncertainty

a novel rescheduling method based on a two-level simulation system is proposed in this paper.The lower level model with uncertainty in the tank farm is used to simulate the deviation from the original plan.And the heuristic rule is further applied to the upper level simulation model according to the disruptions from the lower level to get the conservative plan which satisfies both material and components constrains simultaneously.Subsequently

by fixing the value of binary decision variables and penalizing the simulated deviation in the MILP model

a sub-optimal solution is obtained with less computational effort.The effectiveness of the proposed rescheduling framework is illustrated through a tank farm operation case in real world refinery.

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