Comparison of multisystem traction converters for high-power locomotives

Bakran, Mark-M.; Eckel, Hans-Günter; Eckert, P.; Gambach, H.; Wenkemann, U.

doi:10.1109/pesc.2004.1355833

Cited by 8 publications

(2 citation statements)

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“…Alternatively, the battery can be directly connected to the dc-bus of the traction inverter, while the overhead line is connected through a dc/dc converter [6]. This configuration offers advantages if the overhead line has a voltage different from the dc-bus, or for LRVs travelling on sections at different voltage levels [7]. The dc/dc converter in this case is normally a buck-type and does not require additional power filters.…”

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confidence: 99%

Design and Control of Hybrid Electric Light Rail Vehicles With Open Ended Winding Machines

De Simone,

Carmeli,

D'Arco

et al. 2024

IEEE Open J. Veh. Technol.

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Light railways are a low carbon emission form of transport, but it is often difficult to electrify tracks in central urban areas. This limitation can be avoided by integrating an on-board battery storage connected to the dc bus of the traction inverter with a boost dc/dc converter. However, the boost converter requires a bulky inductor and introduces additional power losses that are undesirable. This paper proposes to replace the standard induction motor with an open ended winding induction motor connected at one end to the overhead line with the traction inverter and to the other end to a battery with a second inverter in order to reduce the power losses of the traction drive. The paper addresses design and control aspects for light rail vehicles with open ended winding induction machines when the power supply is partly from the overhead line and partly from the on board battery. Moreover, the paper studies in detail the hybrid operations of the traction system i.e. when the overhead line charges the battery during coasting or at the stops. Finally, numerical simulations for a real use case are presented to quantify the reduction of power losses in comparison to the standard solution.

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confidence: 99%

Design and Control of Hybrid Electric Light Rail Vehicles With Open Ended Winding Machines

De Simone,

Carmeli,

D'Arco

et al. 2024

IEEE Open J. Veh. Technol.

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“…In such case it is convenient to keep DC link voltage at top value of 3.5 kV, in order to limit 4 quadrant rectifier's input current to about 1kA rms. In order to manage such current, six insulated 6.5 kV 600 A insulated IGBT modules are needed for each phase assembly (three parallel IGBT modules for each elementary switch) [6]. So, total number of used devices for the whole converter is 30.…”

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confidence: 99%