scholarly journals VCT-AOC Comprehensive Method to Suppress High-Frequency Resonance and Low-Frequency Oscillation in Railway Traction Power Supply System

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 152202-152213
Author(s):  
Xinyu Zhang ◽  
Jie Chen ◽  
Ruichang Qiu ◽  
Zhigang Liu
Keyword(s):  
High Frequency ◽  
Power Supply System ◽  
Low Frequency ◽  
Low Frequency Oscillation ◽  
Comprehensive Method ◽  
Traction Power Supply System ◽  
Railway Traction ◽  
Traction Power Supply ◽  
High Frequency Resonance ◽  
Traction Power

scholarly journals Nonlinear Second-Order Model and Equilibrium Point Characteristic Analysis of DC Traction Power Supply System

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Y. H. Li ◽  
X. J. Tian ◽  
X. Q. Li
Keyword(s):  
Power Supply System ◽  
Short Circuit ◽  
Low Frequency ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Traction Power Supply System ◽  
Traction Network ◽  
Traction Power Supply ◽  
Short Circuit Fault ◽  
Traction Power

According to the different features of the DC traction network transient current in the Metro, the electromagnetic transient process of traction power supply system that should be divided into the two forms of short-circuit fault and the low-frequency oscillation was proposed. While traction network short-circuit fault happens, the system model is a weakly nonlinear first-order differential equation, which feeder current is increasing exponentially and eventually stabilized. While the load current becomes low-frequency oscillation current, the system model is a nonlinear second-order differential equation. After linear processing in unique equilibrium point neighborhood, the state space equation of linear system is built, and the structural reason of low-frequency oscillation is revealed by eigenvalue analysis method. The simulation result shows that the simulation current waveforms are consistent with the recorded current waveforms and the division of transient process is reasonable.

Railway Traction Power Supply System of Modeling and Simulation Optimization Research

2014 ◽  
Vol 1055 ◽  
pp. 312-315
Author(s):  
Xue Wu Li ◽  
Peng Xiao Ji
Keyword(s):  
Modeling And Simulation ◽  
Power Supply ◽  
Power Supply System ◽  
Supply Voltage ◽  
Supply System ◽  
Simulation Technology ◽  
Traction Power Supply System ◽  
Railway Traction ◽  
Traction Power Supply ◽  
Traction Power

Revamping of electrified railway traction power supply is to improve the railway transport capacity and important measures to promote the development of national economy. As a result of the traction power supply voltage was higher, the simulation technology was applied to modification of the traction power supply system. For the development of research workers to reduce risk and funding has become an international practice. Traction power supply system and the modeling and simulation of the traction power supply capacity technology are discussed in detail. It points out the simulation technology in the development direction of expansion engineering in the application of traction power supply.

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