太原理工大学学报2024，Vol.55Issue(1)：93-101,9.DOI:10.16355/j.tyut.1007-9432.20230402
基于故障序电流幅相特性的含分布式电源配电网纵联保护方案
Longitudinal Protection Scheme for Distribution Network with Distributed Power Based on Amplitude and Phase Characteristics of Fault Sequence Current
摘要
Abstract
[Purposes]With the continuous access of distributed generator(DG)in the tradi-tional distribution network,it has brought serious challenges to the distribution network protec-tion configuration.Based on the analysis of the amplitude and phase characteristics of different types of DG fault current in distribution network line fault,this paper proposes a distribution network pilot protection scheme based on the amplitude and phase characteristics of fault se-quence current.[Methods]The scheme uses the amplitude and phase difference characteristics of each sequence fault current at both ends of the line to construct the protection action amount and braking amount respectively.By setting the protection parameters reasonably,the selectivity and sensitivity of complex distribution network protection with different types of DG can be taken in-to account.[Findings]The protection scheme setting is simple,real-time adjustment is not re-quired at the operation stage,and the computational power of the protection equipment is low.Finally,the effectiveness of the protection scheme is verified by a simulation example built by RTDS.关键词
分布式电源/配电网/故障序电流/幅相特性/纵联保护Key words
distributed generator/distribution network/fault sequence current/amplitude and phase characteristics/longitudinal protection分类
信息技术与安全科学引用本文复制引用
杨洋,李胜文,陈晓乾,秦文萍,李瑞,刘翼肇,蔡逸天..基于故障序电流幅相特性的含分布式电源配电网纵联保护方案[J].太原理工大学学报,2024,55(1):93-101,9.基金项目
山西省科技重大专项资助项目(20181102028) （20181102028）
国网山西省电力公司科技项目(520530200014) （520530200014）
