Traveling Wave Characteristic Analysis of Arc Short Circuit and Metal Short Circuit Fault in DC Traction Power Supply System

2006 ◽  
Author(s):  
Xiaqing Li ◽  
Li Zuo ◽  
Shuyou Guo ◽  
Shengtao Fan
Keyword(s):  
Power Supply ◽  
Traveling Wave ◽  
Power Supply System ◽  
Short Circuit ◽  
Supply System ◽  
Characteristic Analysis ◽  
Traction Power Supply System ◽  
Traction Power Supply ◽  
Short Circuit Fault ◽  
Traction Power

Transient Model of Short Circuit Fault on Subway Traction Power Supply System

2011 ◽  
Vol 383-390 ◽  
pp. 4199-4205
Author(s):  
Xia Qing Li
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Short Circuit ◽  
Supply System ◽  
Fault Current ◽  
Transient Model ◽  
Traction Power Supply System ◽  
Traction Power Supply ◽  
Short Circuit Fault ◽  
Traction Power

Accurate analysis and modeling of DC side short circuit transient is important for design of DC traction power supply system and assessment of the suitability of protection arrangement. In recent years, the overshoot and swing in short-circuit fault current profiles of subway traction power supply system can not be correct explained by the existing subway traction power supply system fault model. The second-order transient model on subway traction power supply system is presented by analyzing short-circuit fault current recorder, the commissioning test waveform and electrical parameters of subway train. Using this model, the simulation results are consistent with the fault recorder and the commissioning test current profiles. Also the origin of the overshoot and swing on the waveform is explained.

Transient Responses in Continuous Co-Phase Traction Power Supply System

2014 ◽  
Vol 1006-1007 ◽  
pp. 955-961
Author(s):  
Xing Wang Li ◽  
Ju Rui Yang
Keyword(s):  
Contact Line ◽  
Power Supply ◽  
Power Supply System ◽  
Short Circuit ◽  
Supply System ◽  
Transient Responses ◽  
Traction Substation ◽  
Traction Power Supply System ◽  
Traction Power Supply ◽  
Traction Power

Continuous co-phase traction power supply system is the major change of the traction power supply. It is important to analyze the transient response characteristics of overhead contact line for the traction substation feeder protection. This article introduces the main structure of continuous co-phase traction power supply system and the control strategy of traction substation. Meanwhile, transient responses of overhead contact line in the earth short circuit are studied, including metallic earth short circuit and non-metallic earth short circuit (high resistance ground). In the PSCAD/EMTDC electromagnetic transient simulation environment, the effects on the system and the recovery process are studied which the fault occurred in the output interface of traction substation and occurred in overhead contact line.

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