Cascade–Parallel Structure Application of Converters for AC–DC–AC Traction Substation

The topology of a converter-based traction substation is proposed in this paper to solve the power quality problems in traditional power supply systems (TPSSs). Its series–parallel structure is suitable for traction applications. The topology of power circuit is presented, and its working principle is analyzed in depth. For the cascade–parallel structure, constraints for its stable operation are given. The DC voltage sharing performance of the active front end (AFE)-based cascade inverters is analyzed. In the control of the rectifier, the DC feedforward control is adopted to improve the dynamic performance. The mathematical model is established for the parallel structure at the output, and the active and reactive power decoupling control strategy based on shared synchronous bus is proposed. Moreover, the calculation method of the active power and the reactive power is introduced. The basic functions of the system and the performance of cascade–parallel structure at the output side are validated based on MATLAB/Simulink.

Language

  • English

Media Info

  • Media Type: Web
  • Edition: 1
  • Features: References;
  • Pagination: pp 257-275
  • Monograph Title: Proceedings of the 4th International Conference on Electrical and Information Technologies for Rail Transportation (EITRT) 2019: Novel Traction Drive Technologies of Rail Transportation
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01928297
  • Record Type: Publication
  • ISBN: 9789811528613
  • Files: TRIS
  • Created Date: Aug 23 2024 3:26PM