浅述微电网继电保护的研究与应用  

Research and Application of Relay Protection in Microgrid

作　　者：张俊彦[1] 张利钦[1] ZHANG Jun-yan;ZHANG Li-qin(School of Mechanical and Electrical Engineering,Shijiazhuang University,Shijiazhuang,Hebei 050035,China)

机构地区：[1]石家庄学院机电学院,河北石家庄050035

出　　处：《石家庄学院学报》2022年第3期73-77,84,共6页Journal of Shijiazhuang University

基　　金：河北省高等学校科学技术研究青年基金(QN2019340)。

摘　　要：微电网是一种新型的可控配电网络单元.通过控制策略进行协调,能够大大降低分布式微电源单独连接到电网发生的缺陷,确保分布式微电源的广泛和高效使用.针对不同运行模式下不同微电网故障特点,研究了分布式电源并入电网对配电网线路重合闸和继电保护的影响.最后以孤岛模式下微电网继电保护为例,阐述了检测孤岛的方法和保护策略.Microgrid is a new type of controllable distribution network unit.It can effectively adjust the internal distributed micro power source,and coordinate through the control strategy,which can greatly reduce the defects that the distributed micro-power source is individually connected to the grid alone,and ensure the widespread and effi-cient use of distributed micro-power source.Aiming at the fault characteristics of different microgrids in different operation modes,the influence of reclose and relay protection for distributed generation merging electric network is studied.Finally,taking the micro-grid relay protection in island mode as an example,the method of detecting isolat-ed island and protection strategy are described.

关 键 词：微电网 分布式微电源 继电保护 

分 类 号：TM773[电气工程—电力系统及自动化]