电测与仪表2017，Vol.54Issue(8)：52-57,6.
微网线路保护综述
Overview on micro-grid line protection
摘要
Abstract
The fault current of the inverter is limited to two times of the rated current, which causes the huge difference of the fault current in grid-connected and islanded mode of micro-grid containing inverter type micro source.The conventional over-current protection based on the fixed value is not suitable for the micro network any more.There are many factors that cause the uncertainty of fault current, which are summarized, such as the operation mode of micro-grid, the exit, the capacity, the layout and the control mode of DG, and analyzed their impacts.Current domestic and international research hotspot of micro-grid line protection are summarized, and also makes classifications on whether rely on communications and realization method of protection principle.Finally, it is discussed the possible future development direction of the micro-grid line protection.关键词
微网/线路保护/逆变器/分布式电源Key words
micro-grid/line protection/inverter/distributed generator分类
信息技术与安全科学引用本文复制引用
夏令琴,李凤婷..微网线路保护综述[J].电测与仪表,2017,54(8):52-57,6.基金项目
国家自然科学基金资助项目(51267019) （51267019）
