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

Yang Yun; Xu Qiwei; Zhao Yizhou; Fu Guozhong; Tang Jiankai

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

Volume 44 Issue S2

Dec. 2023

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Article Navigation > Nuclear Power Engineering > 2023 > 44(S2): 146-152

Yang Yun, Xu Qiwei, Zhao Yizhou, Fu Guozhong, Tang Jiankai. Analysis of Mixed Equivalent Magnetic Network Model of Reactor Control Rod Drive Mechanism Considering Magnetic Saturation[J]. Nuclear Power Engineering, 2023, 44(S2): 146-152. doi: 10.13832/j.jnpe.2023.S2.0146

Citation:

Yang Yun, Xu Qiwei, Zhao Yizhou, Fu Guozhong, Tang Jiankai. Analysis of Mixed Equivalent Magnetic Network Model of Reactor Control Rod Drive Mechanism Considering Magnetic Saturation[J]. Nuclear Power Engineering, 2023, 44(S2): 146-152. doi: 10.13832/j.jnpe.2023.S2.0146

Citation:

Yang Yun, Xu Qiwei, Zhao Yizhou, Fu Guozhong, Tang Jiankai. Analysis of Mixed Equivalent Magnetic Network Model of Reactor Control Rod Drive Mechanism Considering Magnetic Saturation[J]. Nuclear Power Engineering, 2023, 44(S2): 146-152. doi: 10.13832/j.jnpe.2023.S2.0146

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

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

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

Received Date: 2023-07-11
Rev Recd Date: 2023-09-20
Publish Date: 2023-12-30

Abstract

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)

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References(20)

References

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