2018
DOI: 10.1109/tte.2017.2765518
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Evolution of Power Converter Topologies and Technical Considerations of Power Electronic Transformer-Based Rolling Stock Architectures

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Cited by 71 publications
(39 citation statements)
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“…The existing 50 kW chargers deliver with approximately 93% efficiency with a LF transformer efficiency of 98.5%. A promising approach to overcome the above issues is the utilization of solid state transformer (SST) [52] technology, which is already popular for railway traction [53] and DC distribution grids [54].…”
Section: Sst-based Xfc Infrastructurementioning
confidence: 99%
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“…The existing 50 kW chargers deliver with approximately 93% efficiency with a LF transformer efficiency of 98.5%. A promising approach to overcome the above issues is the utilization of solid state transformer (SST) [52] technology, which is already popular for railway traction [53] and DC distribution grids [54].…”
Section: Sst-based Xfc Infrastructurementioning
confidence: 99%
“…In order to directly connect SST-based AFE converter to the MV grid (6.6-15 kV) and have the ability to operate at high switching frequency, there needs to be exploration of wide-bandgap (WBG) devices such as SiCs and GaNs. The physical properties of WBG devices in comparison to Si-based devices are shown in Figure 10 [53,62,63]. The SiC devices are the preferred option for SST based systems as it can operate at higher switching frequency and operating temperature.…”
Section: Wide Bandgap Devicesmentioning
confidence: 99%
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“…This Line frequency transformers (LFTs) in railway vehicles are molded to operate for minimum power density (0.25-0.35 kVA/kg) with an efficiency around 94% for high voltage overhead systems. Railway consider the size, weight, and efficiency constraints in an optimized fashion with traction equipment [9]. The better use of new insulation materials, synthetic ester oil as dielectric, design of windings, and coolants may not suitable to fully address the issues.…”
Section: Introductionmentioning
confidence: 99%