Power-Electronics Issues of Modern Electric Railway Systems
| Autor: | STEIMEL, A. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Advances in Electrical and Computer Engineering, Vol 10, Iss 2, Pp 3-10 (2010) |
| Druh dokumentu: | article |
| ISSN: | 1582-7445 1844-7600 |
| DOI: | 10.4316/AECE.2010.02001 |
| Popis: | After de-regulation of the former state-owned railways and severe restructuring of the railway industry in the last 15 years, more innovative vehicle concepts saw the light of the day. Power electronics, already formerly being a pacemaker for progress of traction vehicles, brought forth an utmost standardization of the main drive by means of the IGBT-converter-fed induction motor drive. This is independent of the railway supply voltage system or of a diesel prime mover, for locomotives, high-speed and mass-transit trains as well as for tramways. Vehicles able to operate on all four European railway voltage systems have become feasible and are used now widely. New trends as Permanent-Magnet Synchronous Motors or Medium-Frequency Transformers are discussed, and a short overlook over actual field-oriented high-performance motor control systems - including a speed-sensorless variant - is given. Power electronics dominates the field of conversion of the 16.7-Hz railway supply power, typical for Central Europe, from the 50-Hz three-phase utility grid. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|