城市轨道交通再生能量利用的直流牵引供电系统仿真研究  

Simulation Research on DC Traction Power Supply System for Renewable Energy Utilization of Urban Rail Transit

作　　者：肖梓林[1] XIAO Zilin(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an 710043)

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《电气工程学报》2021年第1期166-172,共7页Journal of Electrical Engineering

基　　金：中国铁建股份有限公司(副部级单位)科技研究开发计划课题《城市轨道交通再生能量利用研究》资助项目(13-C49)。

摘　　要：由于在直流牵引供电系统仿真过程中,储能单元仿真效果不佳,造成直流牵引供电系统仿真结果与实测结果相差较大。由此提出城市轨道交通再生能量利用的直流牵引供电系统仿真方法。根据双向DC/DC变换器的特征以及Buck工作模式原理,对储能单元仿真进行分析;采用牵引网等效模型,计算车辆直流牵引力;通过上述两部分,采用电气潮流计算中的节点电压法和高斯消去法获取系统各节点的电压,完成基于再生能量的直流牵引供电系统仿真设计。通过与传统方法以及实测结果对比可知,该方法在电流动态仿真与能量回馈仿真中,其数值与实测结果较为接近。In the simulation process of DC traction power supply system, the simulation effect of energy storage unit is not good, so the simulation result of DC traction power supply system is quite different from the measured result. Therefore, the simulation method of DC traction power supply system for renewable energy utilization of urban rail transit is proposed. According to the characteristics of bidirectional DC/DC converter and the principle of Buck working mode, the simulation of energy storage unit is analyzed;the equivalent model of traction network is used to calculate the DC traction force of vehicle;through the above two parts, the node voltage method and Gauss elimination method in the calculation of electrical power flow are used to obtain the voltage of each node of the system, and the simulation design of DC traction power supply system based on renewable energy is completed. Compared with the traditional method and the measured results, the numerical value of this method is close to the measured results in current dynamic simulation and energy feedback simulation.

关 键 词：储能单元 再生能量 城市轨道交通 直流牵引供电 

分 类 号：U121[交通运输工程]