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贯通同相供电系统穿越功率抑制方案

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为解决贯通同相供电系统中的穿越功率问题,本文提出一种穿越功率抑制方案,该方案采用改进的同相供电补偿装置和穿越功率抑制方法.在阐述贯通式同相供电系统和同相供电补偿装置结构的基础上,通过增加串联变流器使牵引变电所具备调节母线电压的能力;通过分析空载工况下穿越功率的表达式,对比两种穿越功率抑制方法的效果,提出相位差-有功功率下垂控制的穿越功率抑制方法;仿真分析了穿越功率抑制效果,验证了所提方案的有效性,结果表明:本文提出的穿越功率抑制方案在空载、牵引工况下均能完全抑制穿越功率,有效改善牵引变电所负载不均衡的情况.
In order to solve the problem of traversing power in the through co-phase power supply system,the paper puts forward a scheme for suppression of traversing power,which adopts an improved compensation device and traversing power suppression method for co-phase power supply system.On the basis of explaining the structure of the through co-phase power supply system and compensation device of co-phase power supply,the traction substation is provided with the ability to regulate the bus voltage by adding a series converter.By analyzing the expression of traversing power under no-load conditions,comparing the effects of two traversing power suppression methods,a traversing power suppression method based on phase difference active power droop control is put forward.The simulation analyzed the effect of traversing power suppression and verified the effectiveness of the proposed scheme.The results showed that:the scheme for traversing power suppression put forward in the paper can completely suppress the traversing power under both no-load and traction conditions,effectively improving the situation of load imbalance in traction substations.

through co-phase power supply systemtraversing powervoltage phase differencedroop control

杨钧清、马庆安、刘炜

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西南交通大学电气工程学院

贯通同相供电系统 穿越功率 电压相位差 下垂控制

2024

电气化铁道
中铁电气化局集团有限公司,中国铁道学会电气化委员会

电气化铁道

影响因子:0.272
ISSN:1007-936X
年,卷(期):2024.35(6)