Elimination of asymmetry in a 3-phase power system supplying a 25 kv ac traction substation – comparison of selected solutions

• Autorzy: Burak-Romanowski R. , Szeląg A.
• Języki publikacji: EN

Abstrakty

EN

A 25 kV 50 Hz system is recognized as a system recommended for supply of electrified railways systems due to its significant advantages. However, there exist significant drawbacks in asymmetry introduced due to one-phase character of traction substations into 3-phase power supply. When projects on development of a 25 kV 50 Hz power supply system are being worked out, it is required to analyse the influence of a traction substation on a supplying power system, and the level of expected asymmetry should be assessed and proper measures undertaken. The paper presents results of research during which a comparative analysis of operation of different circuits with application of symmetrizing devices applied in 25 kV 50 Hz traction system substations. Simulation of different schemes and control methods were undertaken and as the most perspective symmetrizing device was recognized a local symmetrizing device with regulation of P and Q power between secondary windings of a Scott transformer.

Słowa kluczowe

EN

energy; electricity; power system

• Wydawca: Instytut Naukowo-Wydawniczy "TTS" Sp. z o.o
• Czasopismo: TTS Technika Transportu Szynowego
• Rocznik: 2015
• Tom: R. 22, nr 10
• Strony: 30--39, CD
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Burak-Romanowski R.

• Warsaw University of Technology, Institute of Electrical Machines, Poland

autor

Szeląg A.

• Warsaw University of Technology, Institute of Electrical Machines, Poland

Bibliografia

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