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化工学报  2012 

基于仿真的炼油厂罐区操作再调度策略

DOI: 10.3969/j.issn.0438-1157.2012.09.013, PP. 2755-2765

Keywords: 仿真,启发式,再调度,优化

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Abstract:

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。

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