考虑电网背景影响的变电所谐波特性测试与分析  

Test and Analysis of Harmonic Characteristics of Substation Considering Influence of Power Grid Background

作　　者：袁玉贤 冯祥 YUAN Yuxian;FENG Xiang(Engineering Quality Supervision Station of China Railway Qinghai-Tibet Group Co. ,Ltd. ,Xining 810006,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]中国铁路青藏集团有限公司工程质量监督站,青海西宁810006 [2]西南交通大学电气工程学院,四川成都611756

出　　处：《电工技术》2019年第13期112-114,共3页Electric Engineering

摘　　要：牵引变电所作为电力系统和电气化铁路牵引网的联结,其谐波特性评估需同时考虑电网背景谐波及电力机车负荷的影响。利用专业的电能质量测试装置,对某条电气化铁路若干牵引变电所开展考虑电网背景影响的电能质量测试,通过分析实测数据,在考虑电网背景谐波影响的条件下,结合国家相关电能质量标准定量评估了牵引变电所电压谐波特性,对电气化铁路牵引变电所的运维具有指导意义。Traction substation is the connection of electric power system and traction network of electrified railway. The evaluation of harmonic characteristics of the traction substation needs to consider the influence of background harmonics and electric locomotive load. In this paper, a professional power quality testing device is used to test the power quality of several traction substations of an electrified railway in China. By analyzing the measured data and considering the influence of background harmonics of the power gird, the harmonic characteristics of voltages in traction substation are quantitatively evaluated in combination with the relevant national power quality standards. This paper has guiding significance for the operation and maintenance of the traction substation of electrified railway.

关 键 词：牵引变电所 谐波特性 背景谐波 电能质量测试 

分 类 号：U223[交通运输工程—道路与铁道工程]