Fault Protection Method of Single-Phase Break for Distribution Network Considering the Influence of Neutral Grounding Modes

Yang Xiao; Jinxin Ouyang; Xiaofu Xiong; Yutong Wang; Yongjie Luo

doi:10.1186/s41601-020-00156-w

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Fault Protection Method of Single-Phase Break for Distribution Network Considering the Influence of Neutral Grounding Modes

Original Research | 更新时间：2026-09-30

- Fault Protection Method of Single-Phase Break for Distribution Network Considering the Influence of Neutral Grounding Modes
- Fault protection method of single-phasebreak for distribution network consideringthe influence of neutral grounding modes
- 现代电力系统保护与控制（英文） 2020年5卷第2期页码：1-13
- 作者机构：
  
  1. School of Electrical Engineering, Chongqing University,Chongqing,China
  2. North China Electric Power University,Beijing,China
  3. Aalborg University, Aalborg,Denmark
- 作者简介：
- 基金信息：
- DOI：10.1186/s41601-020-00156-w
  中图分类号：
- 纸质出版：2020-04-01
- 稿件说明：
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Yang Xiao, Jinxin Ouyang, Xiaofu Xiong, 等. Fault Protection Method of Single-Phase Break for Distribution Network Considering the Influence of Neutral Grounding Modes[J]. 现代电力系统保护与控制（英文）, 2020,5(2):1-13.

Yang Xiao, Jinxin Ouyang, Xiaofu Xiong, et al. Fault protection method of single-phasebreak for distribution network consideringthe influence of neutral grounding modes[J]. Protection and Control of Modern Power Systems, 2020, 5(2): 1-13.
Yang Xiao, Jinxin Ouyang, Xiaofu Xiong, 等. Fault Protection Method of Single-Phase Break for Distribution Network Considering the Influence of Neutral Grounding Modes[J]. 现代电力系统保护与控制（英文）, 2020,5(2):1-13. DOI： 10.1186/s41601-020-00156-w.

Yang Xiao, Jinxin Ouyang, Xiaofu Xiong, et al. Fault protection method of single-phasebreak for distribution network consideringthe influence of neutral grounding modes[J]. Protection and Control of Modern Power Systems, 2020, 5(2): 1-13. DOI： 10.1186/s41601-020-00156-w.

摘要

With the rapid development of modern distribution network and the access of distributed generation

the network structure is becoming increasingly complex. Frequent single-phase break faults have seriously affected equipment and personal safety and stable operation of the power system. However

with the development and application of the composite neutral grounding modes

the protection of single-phase break fault is facing new challenges. This paper proposes a protection method of single-phase break fault for distribution network considering the influence of neutral grounding modes. The characteristics of neutral voltage and sequence current are analyzed under normal operation and single-phase break fault with different grounding modes. Following this

the protection criterion based on neutral voltage and sequence current variation is constructed. The protection method of single-phase break fault for distribution network is proposed

which is applicable for various neutral grounding modes. Theoretical analysis and simulation results show that the protection method is less affected by system asymmetry

fault location and load distribution. The method has higher sensitivity

reliability and adaptability.

Abstract

With the rapid development of modern distribution network and the access of distributed generation

the network structure is becoming increasingly complex. Frequent single-phase break faults have seriously affected equipment and personal safety and stable operation of the power system. However

with the development and application of the composite neutral grounding modes

the protection criterion based on neutral voltage and sequence current variation is constructed. The protection method of singlephase break fault for distribution network is proposed

which is applicable for various neutral grounding modes. Theoretical analysis and simulation results show that the protection method is less affected by system asymmetry

fault location and load distribution. The method has higher sensitivity

reliability and adaptability.

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