京沪高铁馈线重合闸成功后的异常情况分析
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摘要
牵引供电系统是由牵引变电所亭和接触网线路组成,其中接触网线路是机车或列车取得电能的唯一途径,但它易受外界环境的影响,比如说雷击、污秽、异物和腐蚀等外部因素都有可能造成牵引供电系统接地或者短路故障,从而引发牵引变电所亭跳闸。为了缩短故障延时和防止故障灾害扩大,牵引变电所亭装设有各类微机保护装置,以满足速动性、灵敏性、可靠性和选择性的要求。京沪高铁全线供电方式大多采用全并联AT供电模式,因此单独一条供电臂上分别包含有牵引变电所、AT所和分区所,它们之间的微机保护配合对于系统的安全稳定有着极其重要的意义。本文将对北京局管段内的京沪高铁的几起保护配合异常事件进行归纳、总结和分析,并给出相应的整定值修改建议。
The traction power supply system is composed of a traction substation and the contact line, the contact line is the only way to get the train or locomotive power, but it is easily affected by external environment, such as lightning, pollution, foreign matter, corrosion and other external factors, which are all likely to cause traction power supply system grounding or short-circuit fault, and will lead to traction substation pavilion tripping. In order to shorten the fault delay and the disaster from expanding, the traction substation is equipped with various microcomputer protection devices to meet the requirements of speed,sensitivity, reliability and selectivity. Most of the power supply modes of Beijing-Shanghai high-speed rail adopt the full parallel AT power supply mode. Therefore, a single power supply arm contains traction substation, AT station and partition respectively. The microcomputer protection between them is extremely important for the safety and stability of the system. This paper will sum up and summarize the several protection and abnormal events of Beijing-Shanghai high-speed railway in Beijing administration section, and give corresponding suggestions for fixed value modification.
The traction power supply system is composed of a traction substation and the contact line, the contact line is the only way to get the train or locomotive power, but it is easily affected by external environment, such as lightning, pollution, foreign matter, corrosion and other external factors, which are all likely to cause traction power supply system grounding or short-circuit fault, and will lead to traction substation pavilion tripping. In order to shorten the fault delay and the disaster from expanding, the traction substation is equipped with various microcomputer protection devices to meet the requirements of speed,sensitivity, reliability and selectivity. Most of the power supply modes of Beijing-Shanghai high-speed rail adopt the full parallel AT power supply mode. Therefore, a single power supply arm contains traction substation, AT station and partition respectively. The microcomputer protection between them is extremely important for the safety and stability of the system. This paper will sum up and summarize the several protection and abnormal events of Beijing-Shanghai high-speed railway in Beijing administration section, and give corresponding suggestions for fixed value modification.
引文
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[2]钱仲候.高速铁路概论[M].北京:中国铁道出版社,2006
[3]谭秀炳,刘向阳.交流电气化铁道牵引供电系统[M].成都:西南交通大学出版社,2002.
[4]李群湛,连级三,高仕斌.高速铁路电气化工程[M].成都:西南交通大学出版社,2006.
[5]王维俭.电气主设备继电保护原理及应用[M].北京:中国电力出版社,2002.
[6]李群湛,连级三,高仕斌.高速铁路电气化工程[M].成都:西南交通大学出版社,2006.
[7]李群湛,贺建闽.牵引供电系统分析[M].成都:西南交通大学出版社,2007.
[8]成都交大许继有限责任公司.TA21型牵引变电所安全监控及综合自动化系统说明书[Z].成都:成都交大许继有限责任公司,2006.