Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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高速铁路谐波对馈线电缆与信号电缆的影响

来源:电工电气发布时间:2018-01-22 13:22 浏览次数:536
高速铁路谐波对馈线电缆与信号电缆的影响
 
刘杨,方春华,张闯,潘弘
(三峡大学 电气与新能源学院,湖北 宜昌 443002)
 
    摘 要:高速铁路谐波在馈线电缆中传输会影响馈线电缆的损耗,对信号电缆造成干扰。根据在牵引变电站现场实际测量的数据,运用PSCAD/EMTDC仿真软件,建立了谐波源、牵引变压器、馈线电缆及信号电缆的模型,模拟电力机车运行过程产生的谐波对馈线电缆和信号电缆的影响。测量了馈线电缆与信号电缆的入地电流,计算了馈线电缆的损耗,分析了谐波对信号电缆的干扰情况。结果表明,存在谐波时馈线电缆与信号电缆的入地电流和感应电压均有不同程度的增加,信号电缆的入地电流增加更为明显,馈线电缆的损耗较小。
    关键词:高速铁路谐波;馈线电缆;信号电缆;入地电流
    中图分类号:TM714.3;TM24     文献标识码:A     文章编号:1007-3175(2018)01-0006-07
 
Influence of High-Speed Railway Harmonics on Feeder Cable and Signal Cable
 
LIU Yang, FANG Chun-hua, ZHANG Chuang, PAN Hong
(College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China)
 
    Abstract: High-speed railway harmonics transferring in the feeder cable will have impacts on the loss of the feeder cable, so as to disturb the signal cable. According to the actual measured data on the traction substation site, this paper used the simulation software PSCAD/EMTDC to build the harmonic source, traction transformer, feeder cable and signal cable model and simulated the impact of harmonics produced in the operational process of electric locomotive on the feeder cable and the signal cable. The grounding currents of feeder cable and signal cable were measured and the loss of feeder cable was calculated. This paper analyzed the interference of harmonics to the signal cable. The results show that when harmonics exist, both the grounding current and the induced voltage of feeder cable and signal cable increase to a certain extent, the growth of the grounding current of the signal cable is more obvious, and the loss of feeder cable is smaller.
    Key words: high speed railway harmonics; feeder cable; signal cable; grounding current
 
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