同相牵引供电系统能耗研究

Study on Energy Consumption of Cophase Traction Power Supply System

随着铁路的迅猛发展,牵引供电系统向公共电网引入的电能质量问题日益突出,无功、谐波、负序所产生的能量损耗在系统总损耗的比重越来越大,日渐受到关注。本文在现有常规牵引供电系统与新型同相牵引供电系统对比分析的基础上,研究新型系统对改善系统能耗有着明显的作用。通过仿真计算,验证了新型系统方案的可行性与先进性。为电气化铁路节能设计提供了参考,同时也对牵引供电系统的优化提出了更高的要求。

With the rapid development of railway, the power quality problem of traction power supply sys- tem to the public power grid is becoming more and more serious. The energy loss caused by reactive pow- er, harmonic and negative sequence is more and more important in the total loss of the system. Based on the comparison between the conventional traction power supply system and the new cophase traction power supply system, the new system has a significant effect on improving the energy consumption of the sys- tem. The feasibility and progressiveness of the new system is verified by simulation. This paper provides a reference for the energy saving design of the electrified railway, and puts forward higher requirements for the optimization of the traction power supply system.