SVC在电气化铁路谐波抑制的研究与应用

Research and Application of SVC in Electrified Railway Harmonics Suppression

现在的电气化铁路己经成为电力系统中最严重的谐波污染源之一,已在我国以及世界范围内造成过多次较严重的事故。电气化铁路的电力机车牵引负荷,是波动性很大的大功率单相负荷,具有不对称性、非线性、波动性和功率大的特点^([1]),会产生大量高次谐波和基波负序电流。电力机车中的整流装置和变压器二次侧都是电气化铁路的主要谐波源。针对以上现状,本文介绍了SVC的基本结构与原理;以PNINI作为负载,分析谐波产生的原理,通过静止无功补偿装置SVC进行无功补偿和谐波治理:最后运用了仿真软件MATLAB SIMULINK进行仿真,验证了治理方案和理性。

Electrified railway has now become one of the most serious power system harmonic pollution sources, has caused many serious accidents in China and worldwide. Electrified railway electric locomotive traction load is high-power single-phase rectifier load with volatility, asymmetric, nonlinear power characteristics. It will also generate high harmonics and the fundamental negative sequence current. Electric locomotive rectifier and transformer secondary side are main harmonic source of electrified railway. For all the above, this article describes the basic structure and principle of the SVC; Using HXD3 as a load, analyzes harmonic generation principle; Suppress harmonics through static reactive power compensation device SVC and use software MATLAB SIMULINK to verify.