低压电弧故障防护技术研究与发展趋势  

Research on LV Arc Fault Protection and Its Development Trends

作　　者：刘官耕 杜松怀[1] 苏娟[1] 韩晓慧[1] 

机构地区：[1]中国农业大学信息与电气工程学院,北京市海淀区100083

出　　处：《电网技术》2017年第1期305-313,共9页Power System Technology

基　　金：中央高校基本科研业务费专项资金资助(2016XD002)~~

摘　　要：电弧故障断路器作为识别和切断低压故障电弧的有效装置,是低压配电网安全防护系统的重要环节,引起了业界的广泛关注。概述了低压故障电弧的固有特征,并从其基本特征的角度出发,分析了电弧故障断路器的动作特性和保护性能。讨论了电弧建模仿真分析、物理特性检测、时频特性检测和智能计算方法等4类低压电弧故障检测识别技术,阐述了多层级电弧故障保护策略和直流故障电弧检测应用于智能电网的最新进展。结合微电网和智能配电网的技术需求,展望了未来低压电弧故障防护装置智能化、集成化和信息化的发展趋势。As effective identification means of LV arc fault, arc fault circuit interrupter is an important part of LV distribution grid protection system and attracts widespread concern. Inherent features of LV arc fault are summarized. Operating characteristics and protection performance of the interrupter are analyzed from perspective of its basic features. LV arc fault identification techniques in arc modeling and simulation analysis, physical property detection, time-frequency property detection and intelligent calculating methods are discussed. The latest developments of multi-level arc fault protection strategy and DC arc fault detection in smart grid are described. Combined with technical requirements of microgrid and smart distribution grid, tendency of intelligence, integration and information technology for LV arc fault circuit interrupter is prospected.

关 键 词：低压配电网 电弧故障断路器 电弧特征 保护特性 检测技术 智能电网 

分 类 号：TM77[电气工程—电力系统及自动化]