Analysis of Negative Sequence Current Characters of Power Transformers for Railway
Due to the serious imbalance of the secondary load of traction transformer,the negative-sequence current in the three-phase side is large,which inhibited the development of the technology of taking power from traction network.The negative-sequence current characters of power transformer for railways of five connection types by symmetrical component method,including D,y11,D,d0,Y,y0,Y,d11 and Reverse-Scott is discussed in this paper.Moreover,an improved Reverse-Scott connection type is proposed to reduce the unbalanced degree.
Ke-ke YANG Zhen-sheng WU Lian-biao SUN
School of electrical engineering,Beijing Jiaotong University,100044,Beijing,China
国际会议
上海
英文
283-288
2017-12-30(万方平台首次上网日期,不代表论文的发表时间)