论文部分内容阅读
在电力传输线等效理论基础上,根据牵引供电系统等值电路,对牵引供电系统中的谐波电流放大以及系统的谐波谐振进行了理论推导。采用某电气化铁道典型数据对牵引网中的谐波电流放大现象进行了仿真分析,并利用电磁暂态仿真软件,对上述仿真分析进行了实验验证,结果基本吻合。通过理论推导以及仿真分析得出了牵引网长度、机车位置以及牵引网的不同位置处等因素与牵引网发生谐波电流放大的关系,可以对牵引供电系统的谐波电流放大以及谐波谐振现象研究提供理论依据和参考。
Based on the equivalent theory of power transmission line, theoretical derivation of harmonic current amplification and harmonic resonance in traction power supply system is made according to the equivalent circuit of traction power supply system. The typical data of an electrified railway is used to simulate the harmonic current amplification in the traction network. The electromagnetic transient simulation software is used to verify the above simulation analysis. The results are in good agreement. Through theoretical derivation and simulation analysis, the relationship between traction network length, locomotive location and different position of traction network and the harmonic current amplification in traction network are obtained. It can amplify harmonic current and harmonics resonance in traction power supply system Research provides a theoretical basis and reference.