中国电机工程学报2024，Vol.44Issue(13)：5109-5121,中插8,14.DOI:10.13334/j.0258-8013.pcsee.230094
电气化铁路"车-网"系统串/并联双模式宽频谐波扰动产生装置设计与测量方法
Design of Series/Parallel Dual-mode Wideband Harmonic Disturbance Generator and Measurement Method for Electrified Railway'Train-grid'System
摘要
Abstract
Accurate wideband impedance measurement of the four-quadrant converter(4QC)of electric multiple units and electric locomotive(locomotive)and traction network is an important way to recognize the oscillations and instability problems of electrified railway train-grid traction power system.However,previous works used a single voltage/current perturbation injection method to measure the impedance of the traction network and the locomotive 4QC,which may cause some harmonic disturbances to flow to the non-target measurement objects,resulting in low signal-to-noise ratio(SNR)of the measured objects and affecting the accuracy of impedance measurement.Therefore,this paper proposes a series/parallel dual-mode wideband harmonic disturbance generator and impedance measurement method for the electrified railway'train-grid'joint system.The device has two operating modes of voltage and current,and can emit wideband harmonic disturbances with a frequency band of 1～3 000 Hz.The topology of the disturbance generating device is mainly composed of multi-winding step-down transformer,harmonic power amplification unit,parallel LC resonant circuit and anti-series insulated gate bipolar transistor(IGBT)module.Combined with double closed-loop dq decoupling control and carrier phase-shifted open-loop pulse-width modulation(PWM)control strategy,the high-power harmonic disturbance output with controllable frequency band,controllable amplitude and uniform distribution are realized.Finally,the correctness and effectiveness of the series/parallel dual-mode wideband harmonic disturbance generator design scheme and impedance measurement method are verified by both MATLAB/Simulink simulation and RT-Lab hardware-in-the-loop experiment.关键词
电气化铁路"车-网"系统/串/并联双模式/宽频谐波扰动产生装置/并联LC谐振电路/反串联IGBT模块Key words
electrified railway'train-grid'traction power system/series/parallel dual mode/wideband harmonic disturbance generator/parallel LC resonant circuit/anti-series IGBT module分类
信息技术与安全科学引用本文复制引用
杨向阳,胡海涛,肖冬华,陶海东,宋依桐,何正友..电气化铁路"车-网"系统串/并联双模式宽频谐波扰动产生装置设计与测量方法[J].中国电机工程学报,2024,44(13):5109-5121,中插8,14.基金项目
国家电网有限公司科技项目(5100-202126359A-0-0-00). Science and Technology Project of State Grid Corporation of China(5100-202126359A-0-0-00). （5100-202126359A-0-0-00）
