Analysis of electromagnetic processes in a homogeneous long line
- Authors: Yakushev A.Y.1, Sereda A.G.1, Vasilenko M.N.1, Bulavskii P.E.1, Belozerov V.L.2
- 
							Affiliations: 
							- Emperor Alexander I St. Petersburg State Transport University
- Russian Railroad Brotherhood in the Northwest Federal District
 
- Issue: Vol 88, No 10 (2017)
- Pages: 643-648
- Section: Article
- URL: https://journals.rcsi.science/1068-3712/article/view/230897
- DOI: https://doi.org/10.3103/S1068371217100157
- ID: 230897
Cite item
Abstract
Dependences between the currents and voltages at terminals of a homogeneous long line were analyzed. They make it possible to more correctly explain the changes in current and voltage in an electric-traction network when switching the thyristor arms of a rectifier–inverter converter than do conclusions obtained during replacement of a long line with a circuit with lumped parameters. An imitation model of the homogeneous low-loss long line in the MATLAB/Simulink software environment is proposed that adequately represents the propagation of incident and reflected electromagnetic waves along the line. Transfer functions are presented that approximate the frequency dependences of the specific parameters of the equivalent rail–ground loop and the overhead catenary–ground loop calculated taking into account the increase in the resistance of the wires due to the eddy currents and the surface effect. The influence of frequency dependences of the specific electric parameters of an electric-traction network calculated by various methods on the free voltage oscillation decay on the electric locomotive pantograph obtained by modeling the electromagnetic processes in the traction substation–electric traction network–electric locomotive system is revealed.
About the authors
A. Ya. Yakushev
Emperor Alexander I St. Petersburg State Transport University
							Author for correspondence.
							Email: journal-electrotechnika@mail.ru
				                					                																			                												                	Russian Federation, 							St. Petersburg, 190031						
A. G. Sereda
Emperor Alexander I St. Petersburg State Transport University
														Email: journal-electrotechnika@mail.ru
				                					                																			                												                	Russian Federation, 							St. Petersburg, 190031						
M. N. Vasilenko
Emperor Alexander I St. Petersburg State Transport University
														Email: journal-electrotechnika@mail.ru
				                					                																			                												                	Russian Federation, 							St. Petersburg, 190031						
P. E. Bulavskii
Emperor Alexander I St. Petersburg State Transport University
														Email: journal-electrotechnika@mail.ru
				                					                																			                												                	Russian Federation, 							St. Petersburg, 190031						
V. L. Belozerov
Russian Railroad Brotherhood in the Northwest Federal District
														Email: journal-electrotechnika@mail.ru
				                					                																			                												                	Russian Federation, 							Moscow, 105066						
Supplementary files
 
				
			 
					 
						 
						 
						 
						 
				 
  
  
  
  
  Email this article
			Email this article  Open Access
		                                Open Access Access granted
						Access granted Subscription Access
		                                		                                        Subscription Access
		                                					