考虑磁饱和的反应堆控制棒驱动机构混合等效磁网络模型分析  

Analysis of Mixed Equivalent Magnetic Network Model of Reactor Control Rod Drive Mechanism Considering Magnetic Saturation

作　　者：杨云[1] 徐奇伟[1] 赵一舟[1] 付国忠 唐健凯 Yang Yun;Xu Qiwei;Zhao Yizhou;Fu Guozhong;Tang Jiankai(State Key Laboratory of Power Transmission Equipment&System Security and New Technology,Chongqing University,Chongqing,400044,China;Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]重庆大学输配电装备及新技术国家重点实验室,重庆400044 [2]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213

出　　处：《核动力工程》2023年第S02期146-152,共7页Nuclear Power Engineering

摘　　要：作为核反应堆中调节中子反应速率的执行机构,控制棒驱动机构(CRDM)的安全性和可靠性至关重要。本文提出了一种能快速、准确计算CRDM动态电磁特性的混合等效磁网络(MEMN)模型。该模型将等效磁路(EMC)法与磁阻网格(RN)法相结合,以平衡运算精度和速度之间的关系。引入磁通面积修正因子,以表征气隙磁通的边缘效应对气隙磁阻的影响。采用循环迭代的方法解决了导磁材料的非线性问题。通过本文模型的计算,得到了CRDM在不同工况下的磁密分布、线圈电感。本文模型适用于CRDM的快速优化设计和控制算法的研究。As an actuator for regulating the speed of neutron reaction in a nuclear reactor,the safety and reliability of control rod drive mechanism(CRDM)are very important.In this paper,a mixed equivalent magnetic network(MEMN)model is proposed,which can quickly and accurately calculate the dynamic electromagnetic characteristics of CRDM.The model combines the equivalent magnetic circuit(EMC)method with the reluctance network(RN)method to get a tradeoff between accuracy and speed.The magnetic flux area correction factor is introduced to characterize the influence of the edge effect of air gap magnetic flux on air gap reluctance.The nonlinear problem of magnetic materials is solved by cyclic iteration method.Through the calculation of this model,the magnetic density distribution and coil inductance of CRDM under different conditions are obtained.This model is applicable to the rapid optimization design of CRDM and the research of control algorithms.

关 键 词：控制棒驱动机构(CRDM) 磁路饱和 等效磁网络模型(EMN) 有限元仿真(FEA) 

分 类 号：TL364[核科学技术—核技术及应用]