• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 31 Issue 6
Dec.  2018
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Article Contents
WANG Pingxiang. Study on Impact on Negative Sequence of Single Three-Phase Combined Co-Phase Power Supply System[J]. Journal of Southwest Jiaotong University, 2018, 53(6): 1110-1116. doi: 10.3969/j.issn.0258-2724.2018.06.003
Citation: WANG Pingxiang. Study on Impact on Negative Sequence of Single Three-Phase Combined Co-Phase Power Supply System[J]. Journal of Southwest Jiaotong University, 2018, 53(6): 1110-1116. doi: 10.3969/j.issn.0258-2724.2018.06.003

Study on Impact on Negative Sequence of Single Three-Phase Combined Co-Phase Power Supply System

doi: 10.3969/j.issn.0258-2724.2018.06.003
  • Received Date: 10 May 2016
  • Publish Date: 01 Dec 2018
  • The negative sequence is one of the main power quality issues in the tractive power supply system in our country. The structure and characteristics of a single three-phase combined co-phase power supply system are introduced herein, to study the impact of the negative sequence of a single three-phase combined co-phase power supply system. Negative-sequence currents produced by traction loads of the different phase power supply system and the single three-phase combined co-phase power supply system were calculated with the generalized method. In addition, the impact of a single three-phase combined co-phase power supply system and the different phase power supply system on the negative sequence were analyzed in the situation when traction loads are under traction and regenerative braking. The calculation results indicated that capacity utilization of single three-phase combined-type balanced transformer winding is at least 85.7%. This is higher than the YNvd connected transformer, and the impact of train regenerative braking is lower on the negative sequence.

     

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