电气化铁路对沿线电力系统电能质量的影响研究

Study on the Impact of Electric Railway on Power System Quality along It

通过对不同方式下电气化铁路产生的负序和谐波及电压波动的仿真分析,准确地计算得到了电气化铁路引起系统公共连接点三相不平衡度和总谐波畸变率以及电压波动值,并进一步分析了产生负序和谐波的原因。为改善由于电气化铁路引起的电网电能质量问题提出了一些建议性的措施,并讨论了电气化铁路对其并网点风电机组的影响。

By simulation analysis on negative sequence,harmonics and voltage fluctuation produced by electric railway in different mode,three-phase unbalance factor of Common Coupling Point,total harmonic distortion and voltage fluctuation rate all caused by electric railway has been accurately calculated out,and further analysis on negative sequence,harmonics generation has been made.Some constructive measures have been made to improve energy quality brought about by electric railway.Also discussion is made on the effect of electric railway on point-of-common coupling of wind turbines.