Fault Line Selection in Cooperation with Multi-Mode Grounding Control for Updates the Floating Nuclear Power Plant Grid

Yikai Wang; Xin Yin; Wen Xu; Xianggen Yin; Minghao Wen; Lin Jiang

doi:10.1186/s41601-020-00160-0

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Fault Line Selection in Cooperation with Multi-Mode Grounding Control for Updates the Floating Nuclear Power Plant Grid

Original Research | 更新时间：2026-09-30

- Fault Line Selection in Cooperation with Multi-Mode Grounding Control for Updates the Floating Nuclear Power Plant Grid
- Fault line selection in cooperation withmulti-mode grounding control forthe floating nuclear power plant grid
- 现代电力系统保护与控制（英文） 2020年5卷第2期页码：1-10
- 作者机构：
  
  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology,Wuhan,China
  2. Department of Electrical Engineering and Electronics, The University of Liverpool,Liverpool,UK
- 作者简介：
- 基金信息：
- DOI：10.1186/s41601-020-00160-0
  中图分类号：
- 纸质出版：2020-04-01
- 稿件说明：
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Yikai Wang, Xin Yin, Wen Xu, 等. Fault Line Selection in Cooperation with Multi-Mode Grounding Control for Updates the Floating Nuclear Power Plant Grid[J]. 现代电力系统保护与控制（英文）, 2020,5(2):1-10.

Yikai Wang, Xin Yin, Wen Xu, et al. Fault line selection in cooperation withmulti-mode grounding control forthe floating nuclear power plant grid[J]. Protection and Control of Modern Power Systems, 2020, 5(2): 1-10.
Yikai Wang, Xin Yin, Wen Xu, 等. Fault Line Selection in Cooperation with Multi-Mode Grounding Control for Updates the Floating Nuclear Power Plant Grid[J]. 现代电力系统保护与控制（英文）, 2020,5(2):1-10. DOI： 10.1186/s41601-020-00160-0.

Yikai Wang, Xin Yin, Wen Xu, et al. Fault line selection in cooperation withmulti-mode grounding control forthe floating nuclear power plant grid[J]. Protection and Control of Modern Power Systems, 2020, 5(2): 1-10. DOI： 10.1186/s41601-020-00160-0.

摘要

The Floating nuclear power plant grid is composed of power generation

in-station power supply and external power delivery. To ensure the safety of the nuclear island

the in-station system adopts a special power supply mode

while the external power supply needs to be adapted to different types of external systems. Because of frequent single phase-ground faults and various fault forms

the fault line selection protection should be accurate

sensitive and adaptive. This paper presents a fault line selection method in cooperation with multi-mode grounding control. Based on the maximum united energy entropy ratio (MUEER)

the optimal wavelet basis function and decomposition scale are adaptively chosen

while the fault line is selected by wavelet transform modulus maxima (WTMM). For high-impedance faults (HIFs)

to enlarge the fault feature

the system grounding mode can be switched by the multi-mode grounding control. Based on the characteristic of HIFs

the fault line can be selected by comparing phase differences of zero-sequence current mutation and fault phase voltage mutation before and after the fault. Simulation results using MATLAB/Simulink show the effectiveness of the proposed method in solving the protection problems.

Abstract

The Floating nuclear power plant grid is composed of power generation

in-station power supply and external power delivery. To ensure the safety of the nuclear island

the in-station system adopts a special power supply mode

while the external power supply needs to be adapted to different types of external systems. Because of frequent single phase-ground faults and various fault forms

the fault line selection protection should be accurate

sensitive and adaptive. This paper presents a fault line selection method in cooperation with multi-mode grounding control. Based on the maximum united energy entropy ratio (MUEER)

the optimal wavelet basis function and decomposition scale are adaptively chosen

while the fault line is selected by wavelet transform modulus maxima (WTMM). For high-impedance faults (HIFs)

to enlarge the fault feature

the system grounding mode can be switched by the multi-mode grounding control. Based on the characteristic of HIFs

关键词

Keywords

references

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