This article presents a review in three parts on the current traction motor topologies available
in the railway market. In the first part, essential aspects of the electromagnetic design of …

Traction power systems (TPSs) play a vital role in the operation of electrified railways. The
transformation of conventional railway TPSs to novel structures is not only a trend to promote …

In recent years, the achievement of a renewable and sustainable traction power supply
system (TPSS) in the rail sector has become a significant challenge. Focusing on this issue …

Today, in electric railways, the old dc supply systems are reaching their limits. To improve
their efficiency and increase railroad traffic, a new dc electrification has recently been …

The rails are generally employed as the return path of traction current in urban rail transit. As
the rails are not totally earth isolated, there exist the rail potential and stray current issues …

As ac electric railways have various problems (eg, power quality issues, complex catenary
networks, limited supply region, and passing neutral section), the medium-voltage direct …

This paper presents a review of the current traction motor topologies available in the railway
market in two parts. In the first part, essential aspects of the electromagnetic and thermal …

The share of voltage source converter (VSC) technology is increasing in conventional power
systems, and it is penetrating into specific transportation systems such as electric vehicles …

Selective Harmonics Elimination is a high-efficiency modulation method for multilevel
inverters that allows handling very high voltage applications. It eliminates the most …

This paper presents a review of the available insulation systems for traction motors. Two
primary insulation systems used in traction applications with thermal classes of H and N are …