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1. 发明授权

US06931090B2 Method of establishing a nuclear reactor core fuel assembly loading pattern 有权
标题翻译：建立核反应堆堆芯燃料装配模式的方法
公开(公告)号：US06931090B2
公开(公告)日：2005-08-16
申请号：US10374691
申请日：2003-02-25
申请人： Yung-An Chao , Shengyi Si , Frank D. Popa
发明人： Yung-An Chao , Shengyi Si , Frank D. Popa
IPC分类号： G21C21/00 , G21C5/00 , G21C5/02 , G21C7/00 , G21C17/00 , G21C19/20 , G21C19/00
CPC分类号： G21C5/00 , G21C5/02 , G21C7/00 , G21C19/205 , G21D3/001 , G21D2003/002 , G21Y2002/201 , G21Y2002/304 , G21Y2004/40 , G21Y2004/403 , Y02E30/39
摘要： All possible loading patterns for a nuclear reactor core are searched and optimized for compliance with design constraints. The fuel inventory is divided into a few batches according to coarse levels of reactivity. A recursive enumeration process identifies patterns meeting selected core position constraints, which can be user modified to adjust the search space size. For the batch loading patterns satisfying the constraints, the batches are divided into several smaller batches. A sensitivity matrix linearizing the relationship between fuel assembly position and the depletion model is processed through mixed integer linear programming with branching and bounding to identify an optimal daughter loading pattern. The process is repeated through several levels of batch refinement and selection of optimal daughter patterns, including a level where burnable absorbers are assigned to feed assemblies, until the individual fuel assembly level is reached. The multiple optimal patterns remaining provide a range of solutions.
摘要翻译：搜索和优化核反应堆核心的所有可能的加载模式，以符合设计约束。燃料库存根据粗略的反应性分为几批。递归计数过程确定满足选定核心位置约束的模式，可以通过用户修改来调整搜索空间大小。对于满足约束的批量加载模式，批次分为几个较小的批次。通过具有分支和边界的混合整数线性规划来处理线性化燃料组装位置和耗尽模型之间的关系的灵敏度矩阵，以识别最佳的子载荷模式。该过程通过几个级别的批次精炼和最佳子模式的选择重复，包括将可燃吸收器分配给进料组件的水平，直到达到单独的燃料组件水平。剩余的多种最佳模式提供了一系列解决方案。

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