摘要
精确的高速动车组谐波模型是分析高速铁路牵引供电系统谐波问题的关键之一。结合CRH2A型动车组现场实测的电压、电流数据,分析了6种典型稳态运行工况下动车组的谐波电压、谐波电流的幅频特性、相频特性及其交互特性。在此基础上,建立了非耦合谐波诺顿等效模型,并应用稳健复线性回归方法求解等效谐波电流常量和谐波导纳矩阵。仿真结果表明,所建立的谐波模型能准确地表征高速动车组的谐波电流输出特性,可用于精确地评估高速铁路牵引供电系统谐波问题。
Accurate harmonic model of high-speed EMUs(Electric Multiple Units)is one of the keys to analyze the harmonic issues in the traction power supply system of high-speed railway.The amplitude-frequency,phase-frequency and interaction characteristics of the harmonic voltages and currents of EMUs under six kinds of typical steady-state operation conditions are analyzed combined with the field measured voltage and current data of CRH2A EMUs.On this basis,a decoupled harmonic Norton equivalent model is built.Moreover,the robust complex linear regression method is applied to calculate equivalent harmonic current constant and harmonic admittance matrix.The simulative results show that the proposed harmonic model can characterize the harmonic current emission behaviors of the EMUs accurately,and it can be used to evaluate the harmonic issues in the traction power supply system of high-speed railway.
作者
赵越
王科
李朝阳
唐力
何正友
胡海涛
ZHAO Yue;WANG Ke;LI Zhaoyang;TANG Li;HE Zhengyou;HU Haitao(College of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China;Inner Mongolia Electric Power Research Institute,Hohhot 010020,China)
出处
《电力自动化设备》
EI
CSCD
北大核心
2020年第12期193-197,共5页
Electric Power Automation Equipment
基金
国家自然科学基金青年项目(61603315)
四川省科技开发面上项目(2018JY0263)。
关键词
高速铁路
动车组
谐波建模
稳健复线性回归
非耦合谐波诺顿等效模型
high-speed railway
EMUs
harmonic modeling
robust complex linear regression
decoupled harmonic Norton equivalent model
