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朔黄线路的运输能力日趋紧张,为了挖掘朔黄铁路的运输潜力,开行万吨以上的重载列车势在必行。重载列车的牵引功率高、牵引电流大,容易引起牵引供电系统电压波动。测试了重载列车运行时的电压与电流,研究了负荷变化对牵引变电所进线电源及馈线电压的影响,发现牵引负荷增大后变电所进线电压与馈线电压的波动范围都超出了规范的要求,认为线路阻抗与功率因数是造成电压波动过大的原因。最后根据研究结果,提出了稳定牵引供电系统电压的一些措施。
Shuohuang line increasingly tense transport capacity, in order to tap the transport potential of Shuohuang Railway, opening more than 10,000 tons of heavy-duty train is imperative. Heavy-haul train traction power, traction current, easily lead to traction power supply system voltage fluctuations. The voltage and current during heavy train operation were tested. The influence of load changes on the line power and feeder voltage of traction substation was studied. It was found that the fluctuation range of the line voltage and feeder voltage of substation exceeded when the traction load increased The normative requirements, that the line impedance and power factor is caused by excessive voltage fluctuations. Finally, according to the research results, put forward some measures to stabilize the voltage of the power supply system.