成渝客运专线牵引变电所电能质量评估

Research of Power Quality to Cheng-Yu Traction Power Substation

简要介绍成渝客运专线的基本运行状况,描述了牵引负荷不同于电力负荷的三个特性,利用Matlab对成渝客运专线李家湾、陈家湾、内江北、荣昌北及璧山五个牵引变电所的测试数据进行处理,包括电压偏差、不平衡度、电压畸变率及谐波电压含有率。分析牵引负荷对高压电力系统及所内自用电侧的电能质量影响,最后提出相应的解决策略和建议。

This paper briefly introduces the basic operation condition of Chengdu Chongqing passenger dedicated line,and describes three characteristics of traction load which are different from power load,The testing data of Lijiawan,Chenjiawan,Nei Jiangbei,Rongchangbei and Bishan are analyzed with Matlab language.It concludes voltage deviation,three phase voltage unbalance,voltage distortion and harmonic voltage ratio to analysis the influence of traction power to power system.Finally put forward a homologous countermeasure and suggestion.