摘要
牵引供电系统谐波谐振一直是影响系统安全的重要因素之一,本文首先介绍了牵引供电系统等效阻抗的分析方法,然后在等效阻抗的基础上进一步分析了谐波阻抗和系统谐振频率的变化规律,同时利用均匀输电方程和传输参数矩阵分析了系统中的谐波电流放大情况,讨论了谐波电流放大和系统参数、机车位置之间的关系,并简述了抑制谐波谐振的措施。
The harmonic resonance of traction power supply system has been an important factor in system security. The paper first introduces the analysis method of traction power supply system equivalent impedance, and then further analyzed on the basis of the equivalent impedance of the harmonic impedance and the resonant frequency variation, while taking advantage of a uniform transmission equation and transmission parameters of the matrix analysis of the amplification of harmonic currents in the system, to discuss the relationship between the harmonic current amplification and system parameters and locomotive position, And brief suppression of harmonic resonance measures at last.
出处
《电气技术》
2012年第9期38-43,共6页
Electrical Engineering
基金
中央高校基本科研业务专项资金资助项目(SWJTU2011CX004EM)
关键词
等效阻抗
谐波阻抗
谐振频率
谐波电流放大
谐波谐振抑制
equivalent impedance
harmonic impedance
resonant frequency
harmonic currentamplification
suppression of harmonic resonance
