Repetitive short-circuit measurement on SiC MOSFET

2018-09-07T16:41:28+00:00September 7th, 2018|Conference, Power Electronics & Converters|

Robustness study for the 1.7 kV SiC MOSFET is presented. After evaluation of the critical energy required for failure, devices were submitted to repetitive short-circuits conditions.

Advanced Electrical characterisation of high voltage 4H-SiC PiN diodes

2019-02-15T17:16:32+00:00September 6th, 2018|Power Electronics & Converters, Publications|

This paper reports the design, the processing, the static characterisation, the switching behaviour and the high current stress test of 10 kV aimed 4H-SiC bipolar diodes. The actual breakdown voltage of the selected devices is between 7 kV and 8 kV. The switching characterisations show a good behaviour with a t rr of only 90 ns. No degradation was observed after the application of 10 000 high current pulses during the stress tests.

A 100 kW 1.2 kV 20 kHz DC-DC converter prototype based on the Dual Active Bridge topology

2018-08-24T10:22:03+00:00August 24th, 2018|Power Electronics & Converters, Publications|

This article presents the design, the fabrication, and the test of an isolated DC-DC converter for renewable energy applications. The converter is based on the Dual Active Bridge topology and uses silicon carbide power semiconductors and a medium frequency transformer. The design process covers hardware ranging from the semiconductor die to the complete power converter. For the control, a rapid prototyping approach was used. The experimental validation of the 100 kW prototype is presented.

A High Current Switching test bench to estimate switching losses for power switches

2018-08-09T17:43:58+00:00July 27th, 2018|Power Electronics & Converters|

Our High Current Switching test bench is now operational! This one is integrated to the Power switches characterization platform, which can be used to fully characterize power switches.

MVDC DC-DC CONVERTER TECHNOLOGY – The building block of future MVDC grids

2018-10-01T17:14:09+00:00April 19th, 2018|Conference, Power Electronics & Converters|

This poster describes the DC-DC converter technology intended for Medium Voltage Direct Current grids. The benefits of the proposed technology are highlighted for the DC collector for offshore wind farms.