Electromagnetic transient simulation modeling of electric railway traction network

 

 

SUN Ke, JIANG Quanyuan

 

(College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

 

 

Abstract: Aiming at power quality analysis for electrified railway traction network, a method of establishing the electromagnetic transient models of electrified railway traction network was studied. The independent electromagnetic transient models of main electrical components were deduced, including the model of traction line based on Bergeron model of transmission line and the models of traction transformer and autotransformer by the principle of controlled source. The Traction network wires were considered as the main body of this models, with other electrical elements considered as serial elements or shunt elements. The electrified railway electromagnetic transient simulation software was developed, and this method was tested by comparing its calculations with the results of PSCAD. The results indicate that this method can match the calculations of PSCAD in a variety of conditions, it has the characteristics of establishing the whole model of traction network conveniently, adjusting the simulation parameters easily and supporting secondary development, and has important value for the study of modeling and power quality analysis of traction network.

 

Key words: electrified railway; traction network; electromagnetic transient; simulation