A new novel DC booster circuit to reduce stray current and rail potential in DC railways

Fotouhi, Reza; Farshad, Siamak; Fazel, Seyed Saeed

doi:10.1109/cpe.2009.5156077

Cited by 12 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Booster transformers are used to absorb the return currents back to the CE through catenary return feeders instead of absorbing them in the ground or in the rails. Corresponding technical solutions made of actively controlled power-electronics-based components have been suggested for both AT railways (Tuttas, 1999(Tuttas, , 2000 and DC railways (Fotouhi et al, 2009). Depending on ground impedance and the AC frequency used, the need of using BT catenary systems varies geographically.…”

Section: How To Dimension the Railway Power Supply Systemmentioning

confidence: 99%

Use of converters for feeding of AC railways for all frequencies

Abrahamsson¹,

Schütte²,

Östlund³

2012

Energy for Sustainable Development

View full text Add to dashboard Cite

Railways are the most energy-efficient land-based mode of transport, and electrification is the most energy-efficient way to power the trains. There are many existing solutions to supply the trains with electricity. Regardless of which particular technology is chosen, it is beneficial to interconnect the public power grids to grids supplying power to the railways. This paper shows that the most efficient, flexible, and gentle-for-the-public-grid way of doing that is through powerelectronics-based power converters. Converters offer great benefits regardless of whether the overhead contact lines are of DC-type or AC type, and regardless of the AC grid frequency. This paper presents neither new theory nor new experimental results. Based on already available information, this paper presents logical arguments leading to this conclusion from collected facts. Over time what used to be advanced and high-cost equipment earlier can nowadays be purchased at reasonable cost. It is obvious that for most electrically-fed railways, the use of modern power converters is attractive. Where the individual trains are high consumers of energy, the railway gradients are substantial, and the public grids feeding the railway are weak, the use of converters would be technically desirable, if not necessary for electrification.It is expected that more high-speed railways will be built, and more existing railways will be electrified in the foreseeable future. This paper could provide some insights to infrastructure owners and decision makers in railway administrations about value additions that converter-fed electric railways would provide.

show abstract

Section: How To Dimension the Railway Power Supply Systemmentioning

confidence: 99%