基于模块化多电平变换器的先进牵引供电系统

2018 Asian Conference on Energy, Power and Transportation Electrification (ACEPT) Pub Date : 2018-10-01 DOI:10.1109/ACEPT.2018.8610818

Xiaoqiong He, Pengcheng Han, M. Zhu, Shibin Gao, Xiaoqiong He, Shibin Gao, Wang Peng

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引用次数: 7

摘要

为了解决牵引供电系统中性点区段和电能质量问题，提出了一种基于MMC (Modular multi - level Converter, MMC)结构的新型牵引供电系统。系统从三相电网取电，通过连接的变压器与三相MMC整流器连接，通过HVDC (high voltage direct current, HVDC)传输和单相MMC逆变器将其转换成单相高压交流电。各变电站通过相同比例的单相降压变压器向牵引网络提供输出相相同的27.5kV单相交流电，实现先进的共相供电。本文通过仿真和搭建低功耗实验平台验证了该系统的正确性和可行性。

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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Advanced Traction Power Supply System Based on Modular Multilevel Converters

In order to solve the problems of neutral section and power quality in traction power supply system, a novel traction power supply system based on MMC (Modular Multilevel Converter, MMC) structure is proposed in this paper. The system takes electricity from the three-phase power grid, connects to the three-phase MMC rectifier through the connected transformer, and converts it into a single-phase high-voltage alternating current through HVDC (high-voltage direct current, HVDC) transmission and single-phase MMC inverters. Each substation supplies the traction network with 27.5kV singlephase alternating current with the same output phase through the single-phase step-down transformer of the same ratio to realize the advanced co-phase power supply. This paper verifies the correctness and feasibility of the system through simulation and building a low-power experimental platform.

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2018 Asian Conference on Energy, Power and Transportation Electrification (ACEPT)

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