铁路2×27.5/10 kV动力变压器特性研究  

Study on the Characteristics of Railway 2×27.5/10 kV Power Transformer

作　　者：任波 Ren Bo(Datong West Power Supply Section of Daqin Railway Co.,Ltd.,Datong Shanxi 037005,China)

机构地区：[1]大秦铁路股份有限公司大同西供电段,山西大同037005

出　　处：《城市建筑》2020年第24期157-158,共2页Urbanism and Architecture

摘　　要：为解决非牵引负荷用电困难或其解决方式不够经济合理的问题,本文推导了2×27.5/10 kV三相量动力变压器(D,y11,Y,dl1)和两相量动力变压器(逆Scott)的电气变换方程。结果表明,逆Scott动力变输出电压平衡性能最优,负序电压含量最少,动力变各次谐波值最小;2×27.5/10 kV动力变压器的最优接线方式是逆Scott,但经综合考虑,建议采用D,y11动力变作为稳压动力变压器的研究对象。As the power consumption of non-traction load is difficult or cannot be solved economically or reasonably, the electrical transformation equations of 2×27.5/10 kV three-phase power transformer(D,y11,Y,dl1) and two-phase power transformer(inverse Scott) are induced. The results show that the output voltage balance performance of the inverse Scott power transformer is the best, the negative sequence voltage content is the least, and the harmonic value of each power transformer is the smallest, and the optimal connection mode of the 2 × 27.5/10 kV power transformer is the inverse Scott. But after comprehensive consideration, it is suggested that the D, y11 power transformer should be used as the research object of the voltage-stabilized power transformer.

关 键 词：动力变压器 D y11 Y d11 逆Scott 

分 类 号：U223.6[交通运输工程—道路与铁道工程]