电瓷避雷器Issue(1)：33-42,10.DOI:10.16188/j.isa.1003-8337.2025.01.005
分布式新能源单相接地故障协同处理技术研究
Single-Phase Ground Fault Collaborative Processing Technology for Distributed New Energy Power Plants
李文翔 1周超 1周瑞豪 1匡扶正2
作者信息
- 1. 国网江西省电力公司新余供电分公司,江西 新余 338000
- 2. 长沙理工大学电气与信息工程学院,长沙 410114
- 折叠
摘要
Abstract
Aiming at the problem of single-phase ground fault protection failure caused by the connection of distributed new energy power plants to the power grid,a collaborative processing device for single-phase ground faults of distributed new energy power plants is proposed.Firstly,the impact of the access of distributed new energy power plants on the distribution network of different grounding modes is analyzed,and secondly,it is proposed to transform the traditional grounding mode of the distribution network into dynamic grounding,and when single-phase ground faults at different points occur,differ-ent collaborative processing is carried out with distributed new energy power plants.Finally,the method is simulated and verified in MATLAB/Simulink,and the simulation results show that the method can accurately identify and cut off the fault area and reduce the scope of power outage.关键词
分布式新能源电厂/动态接地/零序电流比幅法/小电阻接地/消弧线圈接地Key words
distributed new energy power plants/dynamic grounding/zero-sequence current ratio method/small resistance to ground/arc suppression coil grounding引用本文复制引用
李文翔,周超,周瑞豪,匡扶正..分布式新能源单相接地故障协同处理技术研究[J].电瓷避雷器,2025,(1):33-42,10.
