牵引网低频振荡及其抑制方法的仿真分析  

Simulation Analysis on Low-Frequency Oscillation in Traction Power Supply System and Its Suppression Method

作　　者：王晖[1] 吴命利[1] 

机构地区：[1]北京交通大学电气工程学院,北京市海淀区100044

出　　处：《电网技术》2015年第4期1088-1095,共8页Power System Technology

摘　　要：针对我国电气化铁路交直交机车引发的牵引网低频振荡现象,结合CRH5型动车组低频振荡的现场测试数据,设定合理的CRH5型动车组网侧整流器控制参数,使用Matlab/Simulink建立了车网系统时域仿真模型,并成功再现牵引网低频振荡现象。通过对车网模型的仿真研究,探讨了CRH5型动车组网侧整流器控制参数对车网系统振荡行为的影响。最后提出通过适当调整网侧整流器控制参数与增设功率振荡抑制环节2种抑制低频振荡的方法。To cope with the low-frequency oscillation in traction power supply system caused by AC-DC-AC drive locomotives of the electric railway in China, based on the on-site measured low-frequency oscillation data of CRH5 train-set, the reasonable control parameters of the line-side converter of CRlq5 train-set are configured, and by means of establishing a time-domain simulation model of the train-grid system by Matlab/Simulink the low-frequency oscillation phenomena in the traction power supply system is successfully re-appeared. Through the simulation research on the train-grid system model, the impacts of the control parameters of line-side converter of CRH5 train-set on low-frequency oscillation behavior of the train-grid system is researched. Finally, two kinds of methods to suppress the low-frequency oscillation, namely appropriately adjusting the control parameters of line-side converter or adding a power oscillation damping link, are suggested.

关 键 词：电气化铁路 低频振荡 车网系统 网侧整流器控制 功率振荡抑制 

分 类 号：TM721[电气工程—电力系统及自动化]