Calculation of AC-DC Hybrid Power Flow in Urban Rail Traction Power Supply System with Regenerated Energy Feedback Device

被引：0
|
作者：
Liu W. [1 ]
Xu L. [1 ]
Liao J. [1 ]
Liu C. [2 ]
Liu R. [1 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
[2] Electrification & Telegraphy Engineering Design Research Department, China Railway Design Group Co., Ltd., Tianjin
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2019年 / 41卷 / 11期
关键词：
Energy saving effect; Inverter feedback; Power flow calculation; Urban railway;
D O I：
10.3969/j.issn.1001-8360.2019.11.009
中图分类号：
学科分类号：
摘要：
The calculation of hybrid power flow of urban rail transit has important significance for the design of power supply system with inverter feedback device. By establishing the model of the AC-DC power flow in urban rail traction power supply system with rectifier unit and the model of voltage source converter with regenerated energy feedback device, this paper proposed an AC/DC alternating iterative power flow calculation algorithm for urban rail transit considering the switching strategies and power flow control mode of the working voltage of the inverter feedback device. For the energy-saving effect evaluation of the traction power supply system with inverter feedback device, the daily feedback energy was proposed as its energy-saving index. Based on the case study of an actual power supply system project, the simulation of multiple trains running on the line was performed to analyze the load process of traction network pressure and traction substation, and to calculate the distribution of regenerative braking energy between adjacent trains and inverter feedback devices as well as the distribution of the feedback energy in the AC power supply system. The influence of different starting voltages of the inverter feedback device and the train departure density on the energy saving effect was studied. © 2019, Department of Journal of the China Railway Society. All right reserved.
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页码：65 / 71
页数：6
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