Naslov
UPS with PFC input stage for railway applications with improved immunity on input overvoltage and energy strikes

Autori
Šolc, Ivan ; Hećimović, Ante ; Šunde, Viktor ; Ban, Željko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

Izvornik
35th International Conference on Power Electronics and Electrical Drives (EDPE) / Jakopović, Željko ; Matuško, Jadranko - Zagreb : Hrvatsko društvo za komunikacije, računarstvo, elektroniku, mjerenja I automatiku (KoREMA), 2021, 88-96

ISBN
978-1-6654-3234-4

Skup
35th International Conference on Electrical Drives and Power Electronics (EDPE) 10th Joint Croatian- Slovak Conference

Mjesto i datum
Dubrovnik, Hrvatska, 22.09.2021. - 24.09.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
railway, uninterruptible power supply (UPS), power factor correction (PFC), battery charger, overvoltage, energy strike, interferences

Sažetak
The main topic of this article is uninterruptible power supply (UPS) in railway applications, focusing on the power factor correction (PFC) stage of UPS and its interaction with overvoltages and energy strikes. The PFC topology used in this article is a two-phase interleaved DC/DC boost converter with diode bridge rectifier connected to the 25 kV, 50 Hz contact line via 25 kV/0.23 kV transformer. Since overvoltages and energy strikes can occur in the contact line due to thyristor locomotive commutation or self- induction, these interferences can disturb the normal operation of the PFC module and in some cases even destroy the module. A simulation model of the PFC is created, tested with simulated overvoltages, and three modifications/improvements to the existing topology are proposed.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA