In the past couple of years, many of the bids for new rolling stock placed with major international suppliers have proposed the use of PMSMs (permanent-magnet synchronous traction motor), which are smaller and lighter than the three-phase induction motors that have dominated the market in recent times. PMSMs first came to prominence in 2007 and they have subsequently been used in a variety of applications. The PMSM, with its associated control electronics, represents the latest such advance in traction technology. The technology is now beginning to be introduced into a variety of new rolling stock, but the integration of PMSMs into traction packages presents some significant technical challenges which must be overcome.
The rise of the permanent-magnet traction motor
Railway Gazette International ; 167 , 2 ; 30-34
2011
5 Seiten, 10 Bilder, 1 Tabelle, 1 Quelle
Article (Journal)
English
The rise of the permanent-magnet traction motor
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