基于单相LCL脉冲整流器高速铁路牵引网谐波谐振抑制方法.PDF

文章编号：1001-8360 （2016 ）00-0000-00 基于单相LCL 脉冲整流器的高速铁路牵引网 谐波谐振抑制方法 王隽龙，宋文胜，葛兴来，张文明，冯晓云 （西南交通大学 电气工程学院，四川 成都 610031 ） 摘 要：本文以电气化高速铁路牵引网谐波谐振问题为研究背景，以提供谐波谐振抑制方案为研究目标， 从列车车载设备角度出发，提出一种基于单相LCL 脉冲整流器的牵引网谐波谐振抑制方法。主要研究工作 为：首先，分析了牵引供电网与交-直-交列车耦合系统谐波谐振的产生机理，提出了在列车牵引传动系统 网侧变流器前端采用LCL 型替代L 型滤波器的谐振抑制方法；其次，建立了单相LCL 脉冲整流器的数学 模型，分析其电压电流双闭环控制算法；最后，基于Matlab/Simulink 搭建了牵引网-列车牵引传动系统电气 耦合的联合仿真模型，并对单相LCL 型脉冲整流器与传统单相L 型整流器进行了仿真对比研究。仿真结果 表明，基于LCL 滤 器的网侧整流器可有效减少列车网侧电流中的高次谐 ，能够有效地抑制牵引网谐 谐振现象发生，为治理车网耦合谐波谐振提供了新的思路。 关键词：牵引供电网；谐振抑制；单相脉冲整流器；LCL 滤波器；仿真 中图分类号：U255 文献标志码：A A Harmonic Resonance Suppression Scheme in High Speed Railway Traction Power Network Based on Single-Phase LCL Pulse Rectifiers WANG Jun-long, SONG Wen-sheng, GE Xing-lai, ZHANG Wen-ming, FENG Xiao-yun (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031，China) Abstract ：According to harmonic resonance phenomenon of traction power network occurred in high-speed electrified railway, a single-phase PWM rectifier with LCL filter mounted in the locomotive is proposed for harmonic resonance suppression. Firstly, the coupling harmonic resonance mechanism between traction power network and AC-DC-AC electric locomotive is analyzed. A harmonic resonance suppression scheme is proposed, that is adopting LCL filter to replace L filter in the front-end of the line-side converter of locomotive traction drive system. Secondly, the mathematical model of single-phase LCL-type PWM rectifier is discussed. A dual closed-loop control strategy with voltage and current loops is analyzed. Finally, a comparative study between