Unidirectional fast switching non-isolated 100 kW fuel cell boost converter
Kreutzer O, Eckardt B, März M (2014)
Publication Type: Conference contribution
Publication year: 2014
Publisher: Institute of Electrical and Electronics Engineers Inc.
Conference Proceedings Title: 2014 16th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2014
Event location: Lappeenranta, FIN
ISBN: 9781479930159
Abstract
This paper describes the power stage of a non-isolated unidirectional 400 V 100 kW DCDC converter for fuel cell vehicles that reaches a switching frequency of 150 kHz with industry power modules. The power modules are equipped with custom made DCB-substrates assembled with a combination of fast 600 V super-junction Si-Mosfets and SiC-Schottky Diodes. For all other components like drivers, current sensors and the auxiliary supply converter standard products have been used to facilitate an automotive specification, and a cost efficient production. The inductors are custom-made to reduce choke losses and volume. The converter reaches an efficiency of 98 % at full load (166->400 V, 590 A lowside current). Furthermore a simple and reliable DC-link discharge unit is described that discharges with constant power and is far smaller and faster than a conventional resistor solution. Based on a constant current discharge device using a Power MOSFET in linear operation, it is extended with a small analog circuit to a roughly constant power discharge device.
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Germany (DE)How to cite
APA:
Kreutzer, O., Eckardt, B., & März, M. (2014). Unidirectional fast switching non-isolated 100 kW fuel cell boost converter. In 2014 16th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2014. Lappeenranta, FIN: Institute of Electrical and Electronics Engineers Inc..
MLA:
Kreutzer, Otto, Bernd Eckardt, and Martin März. "Unidirectional fast switching non-isolated 100 kW fuel cell boost converter." Proceedings of the 2014 16th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2014, Lappeenranta, FIN Institute of Electrical and Electronics Engineers Inc., 2014.
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