牵引供电区段车网耦合系统谐波电流分析及抑制策略

Harmonic Current Analysis and Suppression Strategy for Traction Power Supply Section of Vehicle Network Coupling System

本文以哈大高铁西四牵引供电区段及CRH380BG型动车组车网耦合为研究对象,分析牵引网高低次谐波产生机理,建立了车网耦合系统的数学模型,对动车组不同位置不同工况谐波电流进行仿真分析。针对牵引供电区段谐波电流特性,提出基于阻波高通滤波器的抑制策略,对满功率动车组不同工况谐波电流抑制方案验证,为哈大高铁西四牵引供电区段谐波抑制问题提供了理论参考依据。

This paper takes the traction power supply section of the XiSi section of Ha-Da high-speed railway and CRH380 BG model emu as the research object, analyzes the generation mechanism of high-low harmonics of traction network, establishes the mathematical model of vehicle-network coupling system, and simulates and analyzes the harmonic current in different working conditions at different positions of the emu. Aiming at the harmonic current characteristics of the traction power supply section, a suppression strategy based on high-pass blocking filter is proposed to verify the harmonic current suppression schemes of the full power emu in different working conditions, which provides a theoretical reference for the harmonic suppression problems of the west fourth traction power supply section of Ha-Da high-speed railway.