考虑管状导体模型和轨中电流的钢轨电位计算

来源 :铁道学报 | 被引量 : 0次 | 上传用户：maotian1

【摘要】

：

在直流牵引供电系统中普遍存在钢轨电位过高的问题,而现有钢轨电位计算仅考虑钢轨直流电阻模型,但是轨中电流包含大量1～50Hz和部分6倍频成份.将钢轨等效为管状导体模型,通过实测典型频率下的钢轨内阻抗,拟合确定P60钢轨等效管状导体参数;建立钢轨-地分布式参数模型,提出在多个牵引变电所、多车的复杂工况下考虑钢轨等效管状导体模型和轨中电流交流频谱的钢轨电位计算方法.通过实验室和工程案例验证了方法的准确性和有效性.计算单边供电下的钢轨纵向电压降落和牵引变电所钢轨电位,钢轨电位中6倍频成份对比轨中电流的6倍频成份增

【作者】

：

刘炜李思文杨龙樊国桢潘卫国

【机构】

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西南交通大学电气工程学院,四川成都 610031;北京全路通信信号研究设计院集团有限公司,北京 100071

【出处】

：

铁道学报

【发表日期】

：

2022年1期

【关键词】

：

交流内阻抗管状模型 Bessel函数傅里叶变换

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考虑管状导体模型和轨中电流的钢轨电位计算

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