基于截面偏差的堆芯功率分布重构方法研究
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摘要
提出了一种将功率偏差归结为组件等效截面偏差的堆芯功率分布重构方法。通过对影响功率分布的各种因素进行分析,引入组件截面偏差从而构造出功率偏差,然后将功率重构转化为一个多极值优化搜索问题。采用全局搜索能力较强的特征统计算法(CSA)对影响因素进行了搜索和复现。以秦山二期核电站2号机组为例,选取氙毒波动和慢化剂温度场变化两个因素进行了测试。结果表明,对于所构造的例题,本方法可成功搜索出影响因素,重构后最大功率偏差从5%降低至0.1%,初步验证了本方法的可行性。
A core power distribution reconstruction method which attributes power deviation to assembly equivalence cross-section deviation was proposed.Through the analysis of the various factors that affect the core power distribution and modeling,the crosssection deviation and construct power deviation were introduced.Then,the original problem as an optimizing search problem was regarded.At last,the factors by characteristic statistic algorithm(CSA)were searched and replicated.To verify the feasibility of this method,xenon poison and moderator temperature field were chosen as factors in unit 2reactor of Qinshan No.2Nuclear Power Plant.The results show that this method is suitable for power distribution reconstruction preliminarily.
A core power distribution reconstruction method which attributes power deviation to assembly equivalence cross-section deviation was proposed.Through the analysis of the various factors that affect the core power distribution and modeling,the crosssection deviation and construct power deviation were introduced.Then,the original problem as an optimizing search problem was regarded.At last,the factors by characteristic statistic algorithm(CSA)were searched and replicated.To verify the feasibility of this method,xenon poison and moderator temperature field were chosen as factors in unit 2reactor of Qinshan No.2Nuclear Power Plant.The results show that this method is suitable for power distribution reconstruction preliminarily.
引文
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[3]STAFF A.Continuing advancements in in-core power distribution measurement methods using SIMULATE-3and CECOR 3.4[J].Nuclear Science and Engineering,1995,121(1):57-66.
[4]李富.重构堆芯通量分布的谐波综合法及其诊断应用[D].北京:清华大学,1994.
[5]王常辉.谐波展开法及其在反应堆堆芯功率在线监测中的应用研究[D].西安:西安交通大学,2011.
[6]赵晶,刘志宏,郭德朋,等.大功率压水堆堆芯燃料管理设计[J].原子能科学技术,2012,46(增刊):397-402.ZHAO Jing,LIU Zhihong,GUO Depeng,et al.In-core fuel management design of large power PWR[J].Atomic Energy Science and Technology,2012,46(Suppl.):397-402(in Chinese).
[7]刘志宏,胡永明,施工.特征统计算法及其在NP组合优化问题上的应用[J].科技导报,2006,24(11):28-30.LIU Zhihong,HU Yongming,SHI Gong.Chalactelistic statistic algorithm(CSA)and its application to NP combined optimization problems[J].Science&Technology Review,2006,24(11):28-30(in Chinese).
[8]刘志宏.压水堆多循环堆芯燃料管理优化研究[D].北京:清华大学,2003.
[9]石秀安,刘志宏,胡永明.中国先进研究堆水平孔道屏蔽设计优化研究[J].核动力工程,2006,27(5):87-90.SHI Xiuan,LIU Zhihong,HU Yongming.Optimization study on shielding design for horizontal ducts of China Advanced Research Reactor[J].Nuclear Power Engineering,2006,27(5):87-90(in Chinese).
[10]张斌.基于DR图像的股骨个体化姿态估计关键技术研究[D].哈尔滨:哈尔滨工业大学,2013.