LOW VOLTAGE APPARATUS ›› 2023, Vol. 0 ›› Issue (6): 70-74.doi: 10.16628/j.cnki.2095-8188.2023.06.011

• Energy Efficieney Management • Previous Articles     Next Articles

Energy-Saving Benefit Evaluation of Railway Traction Power Supply Based on Back-to-Back Converter

WU Mingliang1,2   

  1. 1. State Grid Zhejiang Xinxing Technology Co., Ltd., Hangzhou 310000, China
    2. Center of Mass Enterpreneurship and Innovation, State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310000, China
  • Received:2022-11-22 Online:2023-06-30 Published:2023-08-15

Abstract:

Regenerative braking power feedback widely exists in railway traction power supply system, which affects power quality and efficient utilization of electric energy. In order to achieve energy-saving of traction power supply system, the scientific utilization of regenerative braking power has become a key measure. The installation of back-to-back converter is taken as the research object to realize the energy-saving of railway traction power supply. The control strategy and economic model of back-to-back converter are established. The energy-saving benefit of installing back-to-back converter is analyzed using actual traction load and typical parameters with internal rate of return as evaluation index. The results show that the installation of back-to-back converter can achieve the considerable energy-saving benefit and has investment value.

Key words: railway traction power supply, regenerative braking power, back-to-back converter, energy saving, internal rate of return

CLC Number: