电力系统保护与控制Issue(4)：122-127,6.
基于AFB的地铁直流馈线保护算法研究
A novel metro DC feeder line protection algorithm based on AFB
董晨阳1
作者信息
- 1. 铁道第三勘察设计院集团有限公司，天津 300251
- 折叠
摘要
Abstract
As the metro lines become longer and traffic density increases, malfunction or refusing action of metro DC feeder protection device occurs from time to time, so it is of great value to design a more reliable protection algorithm. This paper analyzes the main DC feeder protection of DC railway traction power supply system. Based on the rising rate of current and current increment protection, a novel algorithm with judgment of voltage and current variation for DC railway feeder line protection is proposed. With the help of AFB process design method, a protection process for convenient setting and modification is realized. By analyzing the simulation results, the algorithm can remove non-metallic grounding fault and remote fault fast and accurately, while avoiding the impact of the locomotive starting current, so it’s very practical.关键词
直流馈线保护/AFB流程/远端故障/机车启动电流/非金属性故障Key words
DC feeder protection/AFB process/remote fault/locomotive starting current/non-metal fault分类
信息技术与安全科学引用本文复制引用
董晨阳..基于AFB的地铁直流馈线保护算法研究[J].电力系统保护与控制,2014,(4):122-127,6.
