Method for establishing nuclear reactor reactor core fuel assembly loading mode

核反应堆堆芯(1)的所有可能装填模式被搜索和优化，以符合设计约束。燃料储备(3)根据粗略反应性级别被分成一些分批(F，O，T)。递归枚举过程确定满足选定的堆芯位置约束的模式，其中选定的堆芯位置约束可以由用户修改以调整搜索空间尺寸。对于满足约束的分批装填模式，分批被分成几个更小的分批(F#-[1]，F#-[2]，O#-[1]，O#-[2]，T#-[1]，T#-[2])。将燃料组件位置和消耗模型之间关系线性化的灵敏度矩阵通过具有分支和限界的混合整数线性规划来处理，以确定最优子女装填模式。该过程重复几个分批细化级别并选择最优子女模式，包括可燃吸收剂(BA)分配给进料组件(F)的级别，直到达到个体燃料组件级别。剩下的多个最优模式提供一定范围的解。 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.