含分布式电源配电网的继电保护方案研究  

Research on Relay Protection Scheme for Distributed Power Distribution Network

作　　者：刘长录 杨琳 靳福 王开鹏 LIU Changlu;YANG Lin;JIN Fu;WANG Kaipeng(State Grid Changji Power Supply Company,Changji 831100,China)

机构地区：[1]国网昌吉供电公司,新疆昌吉831100

出　　处：《电工技术》2025年第5期111-113,116,共4页Electric Engineering

摘　　要：在对传统配电网电流保护系统进行分析的基础上,分析分布式电源接入对配电网电流保护系统的影响。针对分布式电源接入可能带来的电流保护灵敏度降低或保护系统出现误动、拒动等问题,提出了含分布式电源场景下配电网电流保护配置和参数整定的解决方案。以某含分布式电源的10kV区域配电网为例,分析了分布式电源接入可能造成保护系统误动等问题,并验证了所提解决方案的有效性,为含分布式电源的配电网保护系统的整定提供有意义的参考。On the basis of analyzing the traditional distribution network current protection system,this article deeply analyzes the impact of distributed power source access on the distribution network current protection system.A solution for current protection configuration and parameter tuning in distribution networks with distributed power sources is proposed to address issues such as reduced sensitivity of current protection or misoperation and refusal of protection systems caused by the integration of distributed power sources.Taking a 1o kV regional distribution network with distributed power sources as an example,the potential misoperation of protection systems caused by the integration of distributed power sources is analyzed,and the effectiveness of the proposed solution is verified,providing meaningful reference for the tuning of protection systems in distribution networks with distributed power sources.

关 键 词：分布式电源 配电网 电流保护 灵敏度 误动 

分 类 号：TM773[电气工程—电力系统及自动化]