摘要
柔性直流系统故障时,交流线路电气特征与其他电路系统存在差异,进而影响邻近区域的交流线路保护。由于柔性直流系统物理特性描述复杂,在分析柔性直流结构及调控特性、调控模式理论基础上通过对柔性直流系统交流线路保护中距离保护与负性和零序等方向元件适应性进行分析与评估,总结方向元件在柔性直流系统中动作特性与元件的保护性能,为新型电力系统稳定运行提供保障。
When a flexible DC system fails,the electrical characteristics of the AC line differ from other circuit systems,which in turn affects the protection of the AC line in adjacent areas.Due to the complex description of the physical characteristics of flexible DC systems,this study analyzes and evaluates the adaptability of distance protection and negative and zero sequence directional components in AC line protection of flexible DC systems based on the analysis of flexible DC structure and regulation characteristics,regulation mode theory,and summarizes the action characteristics and protection performance of directional components in flexible DC systems,providing guarantees for the stable operation of new power systems.
作者
唐维
黄晓夏
TANG Wei;HUANG Xiaoxia(Guodian Nanrui Nanjing Control System Co.,Ltd.,Nanjing 210000,China)
出处
《电工技术》
2024年第S2期99-101,共3页
Electric Engineering
关键词
新型电力系统
现有元件保护适应性
性能
关键技术
提升
new power system
adaptability of existing component protection
performance
key technology
improvement
