The Simulation Comparative Study of Traction Network Harmonic Characteristic of Three Kinds of AT Power Supply modes

2021 6th Asia Conference on Power and Electrical Engineering (ACPEE) Pub Date : 2021-04-01 DOI:10.1109/ACPEE51499.2021.9437023

Quancun Nie, Mingxing Tian, Lijun Sun, Haiyan Wang

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Abstract

AT power supply mode is widely used in high-speed railway. This paper introduces three kinds of AT power supply modes, and combined with the current situation of the harmonic problems in traction network caused by the mixed running of AC-DC electric locomotive and AC-DC-AC EMU, carries out the simulation comparative study on the harmonic characteristics of traction network of multi-vehicle mixed running lines under three kinds of AT power supply modes. Taking SS6B locomotive and CRH2 EMU, which are widely used in the actual situation at present, for examples, the interactive simulation model between the vehicle and traction network is established by using Matlab/Simulink simulation software. Through the simulation analysis of the harmonic characteristics of SS6B electric locomotive and CRH2 EMU, the correctness of the comparison conclusion in this paper is verified. On the basis of the vehicle network interactive simulation model, the harmonic characteristics of the traction network under different traction network lengths, different locomotive positions and different locomotive working conditions of three AT power supply modes were compared and analyzed. The study results show that the vehicle network interactive simulation model established by the three AT power supply modes can accurately reflect the influence of AC-DC locomotive mixed running on the harmonic characteristics of traction network.

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三种AT供电方式牵引网络谐波特性的仿真比较研究

AT供电方式广泛应用于高速铁路。介绍了三种AT供电方式，结合交直流电力机车和交直流动车组混运引起的牵引网络谐波问题的现状，对三种AT供电方式下多车混运线路牵引网络的谐波特性进行了仿真比较研究。以目前实际应用较为广泛的SS6B机车和CRH2动车组为例，利用Matlab/Simulink仿真软件，建立了车辆与牵引网络的交互仿真模型。通过对SS6B型电力机车和CRH2型动车组谐波特性的仿真分析，验证了本文对比结论的正确性。在整车网络交互仿真模型的基础上，对比分析了三种AT供电方式在不同牵引网长度、不同机车位置和不同机车工况下牵引网络的谐波特性。研究结果表明，采用三种AT供电方式建立的车网交互仿真模型能够准确反映交直流机车混运对牵引网络谐波特性的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 6th Asia Conference on Power and Electrical Engineering (ACPEE)

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