西安北环线牵引供电系统谐波测试与分析

Harmonic Test and Analysis of Traction Power Supply System of Xi"an North Loop Line

摘要:

随着我国电气化铁路的飞速发展,交直交型电力机车普遍被运用的同时,由其产生的谐波问题对电网的影响也日益凸显。为更好的研究分析牵引供电系统谐波特性规律,对西安北环线牵引供电系统某供电区段的牵引变电所和分区所主要电气量参数进行了同步测量,并在测试数据一时间段内选取了多个典型时刻。通过对典型时刻数据的分析,结果表明该供电区段的谐波特性呈现一定规律,并对其抑制方式提供了合理建议。

Abstract:

With the rapid development of electric railway in China, AC-DC-AC electric locomotives are widely used at the same time, the resulting harmonic problems on the power grid has become increasingly prominent. In order to study the harmonic characteristics of the traction power supply system better, the main electrical quantity parameters of the traction substation and the partition in a power supply section of the Xi"an North Loop Line traction power supply system are measured synchronously, and a number of typical moments are selected in the test data for a period of time. Through the data analysis of the typical moment, the results demonstrate that the harmonic characteristics of the power supply section show a certain law, and some reasonable suggestions are provided for its suppression.