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

杨云; 徐奇伟; 赵一舟; 付国忠; 唐健凯

doi:10.13832/j.jnpe.2023.S2.0146

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

doi: 10.13832/j.jnpe.2023.S2.0146

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

详细信息

作者简介:
杨　云（1993—），男，博士研究生，现主要从事控制棒驱动机构电磁分析的研究，E-mail: yunyang@cqu.edu.cn

中图分类号: TL364
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- 文章访问数: 46
- HTML全文浏览量: 5
- PDF下载量: 9
- 被引次数: 0
出版历程
- 收稿日期: 2023-07-11
- 修回日期: 2023-09-20
- 刊出日期: 2023-12-30

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

1.
State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, China
2.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

摘要

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。
- 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)
Abstract: 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 trade-off 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.
- Control rod drive mechanism (CRDM) /
- Magnetic saturation /
- Equivalent magnetic network (EMN) /
- Finite element analysis (FEA)

HTML全文

图 1 提升线圈磁路简化结构

Figure 1. Simplified Structure Diagram of Lift Coil Magnetic Circuit

下载: 全尺寸图片幻灯片

图 2 提升线圈磁路的磁场分布

Figure 2. Magnetic Field Distribution of Lift Coil Magnetic Circuit　　　　　　　

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图 3 磁密分布云图

Figure 3. Cloud Map of Magnetic Density Distribution

下载: 全尺寸图片幻灯片

图 4 电感变化曲线

Figure 4. Changing Curve of Inductance

下载: 全尺寸图片幻灯片

表 1 提升线圈磁路的主要参数

Table 1. Main Parameters of Lift Coil Magnetic Circuit

参数名	参数值	参数名	参数值
磁轭顶部长度l₁/mm	37	左导磁环长度l₅/mm	90
磁轭梯形截面下底长度l₂/mm	105	右导磁环长度l₆/mm	180
磁轭梯形截面上底长度l₃/mm	22	提升磁极长度l₇/mm	228
磁轭轭部长度l₄/mm	286	提升衔铁长度l₈/mm	316
磁轭轭部外半径r₁/mm	137	磁轭轭部内半径r₂/mm	127
梯形截面内半径r₃/mm	105	磁轭内半径r₄/mm	94.5
导磁环凹槽半径r₅/mm	87	提升磁极外半径r₇/mm	63.5
导磁环内半径r₆/mm	82.5	工作气隙长度x₁/mm	15.9
提升衔铁凹槽半径r₈/mm	45	提升衔铁端部内半径r₉/mm	40
提升磁极内半径r₁₀/mm	32

下载: 导出CSV

表 2 基于MEMN的磁密计算结果

Table 2. Magnetic Density Results Based on MEMN

部件	磁阻编号	不同电流下的磁密/T
部件	磁阻编号	4 A	16 A	28 A	40 A
提升磁极	R₃₁	0.09	0.34	0.46	0.56
提升磁极	R₃₄	0.37	1.30	1.78	2.17
提升衔铁	R₄₁	0.47	1.66	2.27	2.76
	R₄₂	0.37	1.31	1.79	2.19
	R₄₃	0.18	0.56	0.72	0.83
	R₄₄	0.67	2.07	2.63	3.04
	R₄₅	0.20	0.62	0.79	0.91

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