Study on Low Frequency Voltage Fluctuation for Traction Power Supply Based on Impedance Analysis Method

被引:0
作者
Jiang X. [1 ]
Hu H. [1 ]
He Z. [1 ]
Qian Q. [1 ]
机构
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源
Hu, Haitao (hht@swjtu.edu.cn) | 1600年 / Science Press卷 / 39期
关键词
Comparative validation; Impedance analysis method; Low frequency voltage fluctuation; Traction power supply; Vehicle-network interconnected;
D O I
10.3969/j.issn.1001-8360.2017.12.004
中图分类号
学科分类号
摘要
With the CRH series EMU and HXD series electric locomotives are widely adopted, traction power supply system appear a series of new problems, in which the low-frequency voltage fluctuation of traction network is more serious problem. In order to investigate the mechanism of its occurrence, on the basis of existing new energy grid connected system stability analysis, vehicle-network interconnected system impedance model conforms to actual situation of the traction power supply low frequency voltage fluctuation was build in this paper. Based on this system impedance stability analysis method, the vehicle-network interconnected stability under the different conditions of impedance were studied. The study found that the number of different locomotives, the system impedance changes, and with the locomotive number gradually increased, system stability gradually reduce. The simulation of the vehicle-network interconnected system was built in Matlab/Simulink, binding site measurement and simulation analysis to verify the correctness of the theoretical analysis. The findings for the understanding and improvement of traction power supply system low frequency voltage fluctuation has some reference value. © 2017, Editorial Office of Journal of the China Railway Society. All right reserved.
引用
收藏
页码:23 / 31
页数:8
相关论文
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