Title :
FACTS: powerful means for dynamic load balancing and voltage support of AC traction feeders
Author :
Grünbaum, R. ; Hasler, J.P. ; Thorvaldsson, B.
Author_Institution :
AC Syst. Div., ABB Power Syst., Vasteras, Sweden
Abstract :
With increasing focus on economical as well as environmentally friendly means for mass transit, rail transport is getting renewed momentum in many countries. This means investing in novel rail infrastructure as well as upgrading and electrifying of existing facilities. The feeding of heavy rolling stock from AC grids will in many cases cause unacceptable voltage drops as well as unsymmetry between phases of the feeding grid FACTS devices offer means of remedy, restoring grid symmetry as well as voltage stability. The paper treats dynamic load balancing of grids supplying power to rail transport, as well as dynamic voltage support, by means of thyristor-controlled VAr compensation (SVC) as well as voltage source converters (VSC)
Keywords :
flexible AC transmission systems; load (electric); power convertors; power supplies to apparatus; railways; static VAr compensators; thyristor applications; traction; AC grids; AC traction feeders; FACTS; IGBT; SVC Light; active filtering; autotransformer scheme; booster transformer scheme; dynamic load balancing; electrification; feeding grid phase asymmetry; grid symmetry; heavy rolling stock feed; mass transit; power factor; power quality; pulse width modulation; rail infrastructure; rail transport; thyristor-controlled VAr compensation; voltage drops; voltage flicker; voltage source converters; voltage stability; voltage support; Environmental economics; Load management; Power generation economics; Power supplies; Rails; Railway electrification; Reactive power; Stability; Static VAr compensators; Voltage;
Conference_Titel :
Power Tech Proceedings, 2001 IEEE Porto
Conference_Location :
Porto
Print_ISBN :
0-7803-7139-9
DOI :
10.1109/PTC.2001.964806
