- Tytuł:
-
Transformatory prostownikowe podstacji trakcyjnej – poszukiwanie najkorzystniejszego rozwiązania
Tram traction substation rectifier transformers - looking for the optimum design - Autorzy:
-
Sikora, A.
Kulesz, B. - Powiązania:
- https://bibliotekanauki.pl/articles/1373855.pdf
- Data publikacji:
- 2009
- Wydawca:
- Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
- Tematy:
-
podstacja trakcyjna
transformator prostownikowy
sieć trakcyjna - Opis:
- Polish trams are supplied with dc 600 V voltage. Tram network is supplied from traction substation, where transformation of power grid 3-phase, 15- or 20 kV ac voltage takes place. The transformation is achieved with transformer-rectifier sets. Rectified voltage is characterised by voltage ripple, due to transformation method. Number of pulses of ac component in rectifier voltage depends on rectifier-transformer set used and it may vary from 6 to 24. Older Polish substations operate with 6-pulse systems, the others with 12- pulse systems, sometimes 24-pulse systems are used. When substation electrical equipment is modernised, 6- pulse systems are exchanged for more modern systems. Increasing number of pulses in the rectified voltage should result in bettering of dc voltage quality. However, transformer design is usually more complex and, in addition, number of rectifier diodes and amount of wiring goes up. Increased number of transformer windings means an increase in transformer weight, including windings, core, insulation and chassis weight. At the same time, while the design power of the transformer is kept unchanged, the power losses will go up. This paper presents methodology of weight and power losses calculation for several different rectifier transformer types together with calculation results. The authors have tried to show how to select the most advantageous design of rectifier transformer, keeping in view enhancement of dc voltage quality as well as transformer investment costs due to increase in material (copper and iron) consumption.
- Źródło:
-
Maszyny Elektryczne: zeszyty problemowe; 2009, 82; 181-185
0239-3646
2084-5618 - Pojawia się w:
- Maszyny Elektryczne: zeszyty problemowe
- Dostawca treści:
- Biblioteka Nauki
Artykuł