Simulation of high-frequency active interference of pantograph-network separation arc of high-speed railway

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Nov.2023, Vol.46 No.11: 1467-1471

DOI: 10.3969/j.issn.1003-5060.2023.11.005

Authors

CAO Haibin $ ^{1} $, ZOU Jun $ ^{2} $, XIANG Nianwen $ ^{3} $, WANG Lingfeng $ ^{3} $

(1. China Shenhua Energy Co., Ltd., Beijing 100011, China; 2. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; 3. School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China)

Abstract and Keywords

Abstract: The pantograph-network separation arc is one of the important sources of the high-frequency electromagnetic interference generated by high-speed railway. This paper uses Gaussian pulse and negative exponential pulse to simulate the current waveform of the pantograph-network arc. Considering that the peak value of the pantograph-network arc current is difficult to determine, the normalized time-domain waveform and the normalized frequency spectrum are used to determine the range of electromagnetic interference generated by the pantograph-network separation arc of high-speed railway. Simulation results show that the range of electromagnetic interference and the electromagnetic field attenuation characteristics corresponding to different forms of arcs are very different. Therefore, when it is necessary to determine the electromagnetic interference range of the pantograph-network separation arc, a reasonable arc model is essential. This paper gives the electromagnetic interference range of two pulse waveforms. For other types of arc models with other arc current waveforms, the calculation results in this paper can be used, and the convolution method can be used to obtain the corresponding calculation results.

Keywords: high-speed railway; pantograph-network separation; arc model; electromagnetic interference

作者信息

曹海滨 $ ^{1} $，邹军 $ ^{2} $，向念文 $ ^{3} $，王凌峰 $ ^{3} $

（1. 中国神华能源股份有限公司，北京 100011；2. 清华大学电机工程与应用电子技术系，北京 100084；3. 合肥工业大学电气与自动化工程学院，安徽合肥 230009）

摘要和关键词

摘要: 高速铁路弓网分离电弧是高速铁路产生的高频电磁干扰的重要来源之一,文章采用高斯脉冲和负指数脉冲对弓网电弧的电流波形进行模拟。考虑到弓网电弧电流峰值难以确定,采用归一化时域波形和归一化频谱进行分析,从而确定高速铁路弓网分离电弧产生电磁干扰的影响范围。仿真研究表明,不同形式电弧对应的电磁干扰的影响范围和电磁场衰减特性有很大不同。因此当需要确定弓网分离电弧电磁影响范围时,合理的电弧模型至关重要。文中给出2个脉冲类波形的电磁影响范围,对于其他类型的电弧模型,可以利用文中计算结果,采用卷积的方法获得相应的计算结果。

关键词: 高速铁路；弓网分离；电弧模型；电磁干扰

Funding

国家自然科学基金联合基金资助项目（U1834204）

合肥工业大学学报(自然科学版)

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