Analysis of the Influences of the Electromagnetic Field Produced by an Electrified Railway Section

Oancea, Constantin Daniel; Calin, Florin; Golea, Valentin

doi:10.1109/eeae49144.2020.9279005

Cited by 1 publication

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The findings of the research into EMF at the Xijiang traction substation are given in [18]. The influences of the electromagnetic field produced by an electrified railway section are analyzed in [19]. Methods for predicting electromagnetic fields in the territories of highvoltage substations based on fuzzy models are described in [20].…”

Section: Introductionmentioning

confidence: 99%

Modeling the Electromagnetic Fields of 25 kV Traction Networks Under Emergency Conditions

Suslov¹,

Kryukov²,

Voronina³

et al. 2023

Preprint

View full text Add to dashboard Cite

When in operation, the 25 kV traction networks may encounter the contact wire short circuits to rails or ground. The short-circuit conditions cause high-intensity magnetic fields (EMFs), which, despite the short duration of exposure, can negatively affect electronic devices and lead to significant induced voltage on adjacent power lines. There can be two main types of emergency conditions in 25 kV traction networks: the contact wire short circuit to the rail, when the supports are grounded to the rail track; and the contact wire short circuit to the ground in sections with supports disconnected from the rails. A three-dimensional electromagnetic field near a metal support when a short-circuit current flows through it is characterized by a complex spatial structure, which significantly complicates the calculations of intensities. The paper discusses the results of computer modeling aimed at determining the EMF intensity in the described emergencies. The objects involved in modeling were represented by segments of thin wires to calculate the electric charge distribution and find out the EMF intensity. This approach is implemented in the Fazonord software. The modeling results have shown that EMF intensities near the support grow significantly; their levels decrease noticeably as one moves away from the support; and that the three-dimensional electromagnetic field under the considered emergency conditions has a complex spatial structure.

show abstract

Section: Introductionmentioning

confidence: 99%