摘要
根据现有理论研究成果,介绍直流馈线保护原理;将福州地铁2号线线路及行车资料、牵引负荷电流及短路故障电流计算结果等作为输入条件,结合保护装置整定手册,重点阐述直流馈线保护的整定方案;采用仿真软件对直流牵引供电系统进行动态模拟,验证馈线短路主保护整定的准确性。福州地铁2号线试运行至今,直流馈线保护已通过各项现场测试,保护装置无误动作,列车运行无事故发生,保护设计方案合理可行。
According to the existing theoretical research results, the principle of DC feeder protection is introduced;taking Fuzhou Metro Line 2 and its traffic data, calculation results of traction load current and short-circuit fault current as input conditions,according to the protector setting manual, the setting scheme of DC feeder protection is expounded;the DC traction power supply system is simulated dynamically by simulation software to verify the accuracy of main protection setting of feeder short circuit. Since the pilot run of Fuzhou Metro Line 2,the DC feeder protection has passed all field tests,the protectors have operated correctly, the metro has run without an accident, and the protection design scheme is reasonable and feasible.
作者
王超峰
WANG Chaofeng(Beijing Urban Construction Design & Development Group Co., Limited, Beijing 100071,China)
出处
《建筑电气》
2019年第5期39-45,共7页
Building Electricity
关键词
牵引供电系统
直流馈线保护
大电流脱扣保护
DDL保护
定时限过电流保护
低电压保护
线路测试
过负荷保护
traction power supply system
DC feeder protection
high current tripping protection
DDL protection
timing over-current protection
low voltage protection
circuit test
overload protection
