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为低泄漏堆芯燃料管理发展了一种多循环优化方法和程序系统。多循环优化过程分三步完成：第一步，用线性规划确定能使多循环总寿期最长的相继各循环功率份额最佳分布和循环长度最佳分配；第二步，以前一步结果为条件，用线性规划或直接搜索法对多循环中相继的各个单循环进行燃料组件的优化布置；第三步，用可变容差法（ＦＴＭ）实现可燃毒物最佳配置。
A Multi-Cycle Optimization Method and Program System for Low Leakage Core Fuel Management. Multi-cycle optimization process is completed in three steps: the first step, using linear programming to determine the longest cycle of the multi-cycle power cycle of the best distribution of each cycle and the optimal distribution of cycle length; the second step, the previous step results Conditions, using linear programming or direct search method for multiple cycles in succession each single cycle fuel assembly optimization arrangement; the third step, with variable tolerance method (FTM) to achieve the best configuration of combustible poison.