Characterization and Implementation of Resonant Isolated DC/DC Converters for Future MVdc Railway Electrification Systems
| Autor: | Didier Flumian, Sebastien Sanchez, Andrea Verdicchio, Herve Caron, Joseph Fabre, Philippe Ladoux, Jean-Marc Blaquiere |
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| Přispěvatelé: | LAboratoire PLasma et Conversion d'Energie (LAPLACE), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, SNCF Réseau [La Plaine st Denis], Convertisseurs Statiques (LAPLACE-CS), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), SNCF : Innovation & Recherche, SNCF, Institut Catholique d'Arts et Métiers (ICAM) |
| Rok vydání: | 2021 |
| Předmět: |
multilevel converters
Computer science Substations Energy Engineering and Power Technology Transportation Capacitors Silicon carbide 02 engineering and technology traction power supplies 01 natural sciences 7. Clean energy law.invention Rail transportation [SPI]Engineering Sciences [physics] chemistry.chemical_compound DC / DC converters Electrification law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering opposition method test bench Electrical and Electronic Engineering Power MOSFET Switching frequency 010302 applied physics power MOSFET business.industry [SPI.NRJ]Engineering Sciences [physics]/Electric power 020208 electrical & electronic engineering Direct current Electrical engineering Converters Capacitor chemistry railway electrification Power module Automotive Engineering business Switches Voltage |
| Zdroj: | IEEE Transactions on Transportation Electrification IEEE Transactions on Transportation Electrification, Institute of Electrical and Electronics Engineers, 2021, IEEE Transactions on Transportation Electrification, 7 (2), pp.854-869. ⟨10.1109/TTE.2020.3033659⟩ |
| ISSN: | 2372-2088 2577-4212 2332-7782 |
| DOI: | 10.1109/tte.2020.3033659 |
| Popis: | International audience; 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 proposed at 9-kV. It is now necessary to prepare the migration of infrastructure and rolling stock, using Power-Electronic-Transformers (PETs), for adaptation to this voltage level. For this application, high efficiency and reduced volume are essential. This paper clearly demonstrates that it is now possible to achieve compact, high-power, isolated DC-DC converters using 3.3-kV SiC-MOSFET power modules with high efficiency. After a preliminary study based on simulations, the paper focuses on characterization and implementation of elementary isolated DC-DC converters. The proposed topology is a series-resonant converter rated for a nominal power of 300-kW at 1.8-kV. First, laboratory testing using an “opposition-method” is used to evaluate the elementary converters up to their nominal power using both electrical and thermal measurements to accurately determine losses and efficiency. At the nominal output power, an efficiency of 98.93% is obtained. This is quite remarkable for an isolated DC-DC converter operating under 1.8-kV with a switching frequency of 15-kHz. Finally, two elementary isolated DC/DC converters are associated in ISOP configuration (Input Seriesed/Output Paralleled) in order to achieve a 3-kV/1.5-kV PET with a nominal power of 600-kW as a prelude to the final 9-kV/1.5-kV power conversion. |
| Databáze: | OpenAIRE |
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