高原高海拔典型牵引变电所供电品质测试与分析

Test and Analysis of Power Quality in High-Altitude Typical Traction Substation

在我国高海拔地区铁路线路中,存在着沿线电网架构稀疏、供电容量薄弱的特点,对牵引供电系统的设计与工程实施提出了较大挑战。为了提高牵引供电系统与外部电源的适配性,对高海拔地区牵引供用电品质进行研究具有重要意义。以某高原电气化铁路为例开展供电品质综合测试,基于相关标准,对背景谐波、电压偏差等电能质量指标进行了定量分析,为高海拔地区牵引变电所的设计、建设与运营提供了必要参考。

In the high-altitude railway line of China,there are characteristics of sparse grid structure and weak power supply capacity along the line,which bring great challenges to the design and engineering implementation of the traction power supply system.Therefore,to improve the adaptability of traction power supply systems and external power sources in high-altitude areas,it is of great significance to study the quality of traction power supplies in related regions.Taking a plateau traction substation as an example,a comprehensive test of power supply quality was carried out.Based on relevant standards,quantitative analysis of power quality indicators such as background harmonics and voltage deviation were studied,which provided the necessary reference for the design,construction and operation of traction substations in high altitude areas.