交流电气化铁路牵引电缆供电分析
doi: 10.3969/j.issn.0258-2724.2013.01.013
Power Supply Capacity of Traction Cable for AC Electrified Railway
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摘要: 为了实现交流电气化铁路牵引电缆供电,采用双芯电缆电磁感应原理和Carson原理,研究了电缆与接触线分流系数,分析了电缆的波阻抗和自然功率,并将电缆牵引供电的能力与自耦变压器供电进行比较.结果表明:当电缆截面积大于240 mm2时,电缆分担电流是接触线的3倍以上,表明电缆供电能力是自耦变压器供电能力的1.13~1.34倍.仿真结果表明,当供电臂延长至100 km时,线路电压质量仍能得到保证.Abstract: In order to achieve traction power supply for AC electrified railways, the electromagnetic induction principle of two-conductor cables and Carson's theory were used to study the shunt coefficient between cable and catenary. The wave impedance and natural power of the cable were analyzed, and the power supply capacity of the cable traction system was compared with that of the autotransformer (AT) power supply system. The results show that when the cross section area is larger than 240 mm2, the current carried in cable is over 3 times more than that in catenary, implying that the power supply ability of the cable traction system is 1.13 to 1.34 times that of AT traction power supply system. Simulation reveals that when the length of the feeding section is extended to 100 km, the voltage quality of traction network can still be guaranteed.
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曹建猷. 电气化铁道供电系统[M]. 北京:中国铁道出版社,1983: 50-69. 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: 6-15. 王健石. 电线电缆实用技术手册[M]. 北京:中国标准出版社,2004: 31-32. 池云莉,何天健,梁嘉杰. 电气化铁道系统概率潮流算法研究[J]. 电气化铁道,2004,24(6): 4-8. CHI Yunli, HE Tianjian, LIANG Jiajie. Research on probabilistic load flow of AC electrified railway system[J]. Electric Railway, 2004, 24(6): 4-8. 陈珩. 电力系统稳态分析[M]. 3版. 北京:中国电力出版社,2007: 26-33. 郭东,杨建伟,何正友,等. 一种基于牛顿法的交流高速铁路牵引供电潮流计算方法的研究[J]. 继电器,2007,35(18): 16-29. GUO Dong, YANG Jianwei, HE Zhengyou, et al. Research on a flow analysis method of power supply system for AC high speed railway based on Newton method[J]. Relay, 2007, 35(18): 16-29. 李群湛. 我国高速铁路牵引供电发展的若干关键技术问题[J]. 铁道学报,2010,31(4): 119-124. LI Qunzhan. On some technical key problems in the development of traction power supply system for high-speed railway in China[J]. Journal of the China Railway Society, 2010, 31(4): 119-124. 缪耀珊. 交流电气化铁道的钢轨对地电位问题[J]. 电气化铁道,2007,27(4): 1-6. MIAO Yaoshan. Issue of rail-to-earth potential in AC electrified railway[J]. Electric Railway, 2007, 27(4): 1-6. 孟凡凤,张兵,方晓明,等. 影响直埋电缆载流量的因素的研究[J]. 绝缘材料,2007,40(3): 64-66. MENG Fanfeng, ZHANG Bing, FANG Xiaoming, et al. Study of ampacity reduction factors for burried cable[J]. Insulating Materials, 2007, 40(3): 64-66. 马国栋. 电线电缆载流量[M]. 北京:中国水利水电出版社,2003: 148-184. 张民,何正友,方雷,等. 自耦变压器供电方式下降低高速铁路钢轨电位的方法及其仿真分析[J]. 电网技术,2011,3(3):80-84. ZHANG Min, HE Zhengyou, FANG Lei, et al. Methods to reduce rail potential of high-speed railway adopting autotransformer feeding system and simulation analysis on them[J]. Power System Technology, 2011, 3(3): 80-84. 万庆祝,吴命利,陈建业,等. 基于牵引计算的牵引变电所馈线电流仿真计算[J]. 电工技术学报,2007,21(6): 108-113. WAN Qingzhu, WU Mingli, CHEN Jianye, et al. Simulating calculation of traction substation's feeder current based on traction calculation[J]. Transactions of China Electrotechnical Society, 2007, 21(6): 108-113.
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