交直交传动方式下的车网低频振荡研究

高永军; 王力; 张瑞峰

doi:10.13890/j.issn.1000-128x.2021.01.022

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交直交传动方式下的车网低频振荡研究

大功率器件 | 更新时间：2021-12-09

- 交直交传动方式下的车网低频振荡研究
- Research on Train Grid Low-frequency Oscillation Based on AC-DC-AC Drive Mode
- 机车电传动 2021年第1期页码：121-125
- 作者机构：
  
  1.中车永济电机有限公司　技术中心，陕西　西安　710016
- 作者简介：
  
  高永军（1966—），男，硕士，教授级高级工程师，主要从事动车组变流器技术研究；E-mail：13991902583@163.com
- 基金信息：
  
  中国中车重点项目(2018CYB120)
- DOI：10.13890/j.issn.1000-128x.2021.01.022
  中图分类号：
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高永军, 王力, 张瑞峰. 交直交传动方式下的车网低频振荡研究[J]. 机车电传动, 2021,(1):121-125.

Yongjun GAO, Li WANG, Ruifeng ZHANG. Research on Train Grid Low-frequency Oscillation Based on AC-DC-AC Drive Mode[J]. Electric Drive for Locomotives, 2021,(1):121-125.
高永军, 王力, 张瑞峰. 交直交传动方式下的车网低频振荡研究[J]. 机车电传动, 2021,(1):121-125. DOI： 10.13890/j.issn.1000-128x.2021.01.022.

Yongjun GAO, Li WANG, Ruifeng ZHANG. Research on Train Grid Low-frequency Oscillation Based on AC-DC-AC Drive Mode[J]. Electric Drive for Locomotives, 2021,(1):121-125. DOI： 10.13890/j.issn.1000-128x.2021.01.022.

摘要

如果牵引网电压持续低频率大幅度振荡，会影响机车或动车牵引系统网压的保护，导致变流器牵引封锁，影响列车正常运行。针对近年来我国多地发生牵引网电压的低频振荡现象，通过阻抗比判据和Bode图分析车网振荡主要影响因素，再根据计算机仿真验证车网振荡的影响因素，在不增加任何硬件电路的前提下，提出通过优化控制参数来抑制车网低频振荡的方法。通过半实物仿真研究，验证了该方法的可行性。

Abstract

If the low-frequency and large-scale oscillation of the traction grid voltage continues, the grid voltage protection of locomotive or EMU traction system will be influenced, resulting in converter traction blocking and affecting the normal operation of the train. In view of this practical engineering problem, the main influencing factors of train network oscillation were analyzed with impedance ratio criterion and Bode diagram, and verified according to computer simulation. Without adding any hardware circuit,the method of suppressing low-frequency oscillation of pantograph catenary by optimizing control parameters was proposed. The feasibility of the method was verified by hardware in the loop simulation.

关键词

牵引网电压四象限脉冲整流器低频振荡阻抗比稳定性分析半实物仿真优化控制参数

Keywords

traction grid voltagefour-quadrant pulse rectifierlow-frequency oscillationimpedance ratiostability analysishardware in the loop simulationoptimizing control parameter

references

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WANG Li, YU Senlin, ZHANG Ruifeng. Research on grid voltage interruption detection and control method based on locomotive converter[J]. Power Electronics, 2020, 53(7): 50-53.

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