东北电力技术2026，Vol.47Issue(4)：22-26,5.
基于灵活接地系统的故障处理仿真与实践
Simulation and Practice of Fault Handling Based on Flexible Grounding System
摘要
Abstract
After a single phase grounding fault occurs in the distribution network,the grounding method of the neutral point through arc suppression coils has issues of fault line selection and personal safety,while the grounding method with low resistance has problems of power supply reliability and high resistance identification.For this reason,in a certain distribution real-type test field of State Grid,centralized parameters are used to simulate distributed parameters.It is verified in practice that the flexible grounding method of the neutral point can self-extinguishes the instantaneous grounding arc and restore the insulation of the fault point when a transient ground-ing fault occurs in the power grid,ensuring the reliability of power supply.When it is determined to be a permanent grounding fault,the automatic switching switch dynamically switches to the arc suppression coil and resistance grounding method for rapid fault line se-lection,which has a strong ability to identify high resistance.It verifies the effectiveness and superiority of the flexible grounding method in handling single-phase grounding faults in distribution networks through the combination of simulation on the Matlab simula-tion platform and on-site practice,providing a reference for on-site application.关键词
人身安全/单相接地/故障处理/灵活接地Key words
personal safety/single phase grounding/fault handling/flexible grounding分类
信息技术与安全科学引用本文复制引用
李平,毛兴华..基于灵活接地系统的故障处理仿真与实践[J].东北电力技术,2026,47(4):22-26,5.基金项目
湖南财经工业职业技术学院校级科研项目(202416) （202416）
