光伏电站与电气化铁路对电网电能质量交互影响分析

The analysis of interactive influence on power quality of power grid by PV power station and electrified railways

本文针对光伏电站的接入点与电气化铁路牵引站电气距离很近的问题,依据两者本身产生的谐波频段和幅值特点以及国标中多个谐波源之间相互作用准则,对两者之间的公用电网谐波进行了分析。最后在PSCAD/EMTDC仿真平台上搭建了含有光伏电站和电铁等效模型的电网仿真模型,对电铁和光伏电站的谐波交互影响进行了分析,验证了本文方法的有效性。

This paper is focusing on the problem that the access point of PV power station is very close to electric railway traction station, according to the harmonic frequency and amplitude characteristics of the two themselves, the harmonic transmission characteristics of AC transmission line are considered, and the harmonics of the public grid between the two are analyzed according to the principle of the interaction between multiple harmonic sources in GB. Finally, a power grid simulation model with photovoltaic power station and electric iron equivalent model is built on the PSCAD/EMTDC simulation platform, and the harmonic interaction between the electric railway and the photovoltaic power station is analyzed, and the effectiveness of the method is validated.