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Ole Christian Spro

Research Scientist

Ole Christian Spro

Research Scientist

Ole Christian Spro
Phone: 924 46 028
Email:
Department: Energy Systems
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/1950093/

Two failure mechanisms can generally be identified by means of accelerated power cycling tests on IGBT power modules: bond-wire lift-off and die-solder delamination. Aging associated to bond-wire liftoff is detected by monitoring the increase of collector-emitter voltage while aging linked to die...

Authors Magnar Hernes Salvatore D'Arco Ole Christian Spro Dimosthenis Peftitsis
Year 2021
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1950098/

This paper presents results from experimental tests intended to assess the validity of linear damage superposition using Miner’s rule for IGBT power modules. Such validity is crucial, for example, when applying Miner's rule in combination with power cycling lifetime models for estimating converter...

Authors Magnar Hernes Salvatore D'Arco Ole Christian Spro Dimosthenis Peftitsis
Year 2021
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1950088/

This paper presents simulation results on the magnetic design of a high-frequency isolation transformer using solid insulation. The transformer is intended for auxiliary power supplies in medium-voltage converters. Thus, the coupling capacitance must be limited while ensuring the target self...

Authors Ole Christian Spro Frank Mauseth Dimosthenis Peftitsis
Year 2021
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1826644/

This paper presents improvements to a SPICE model for a commercially available SiC MOSFET to avoid convergence errors while still providing reliable simulation results. Functionality in the internal part of the model that shapes the transconductance of the device according to its junction...

Authors Håvard Lefdal Hove Ole Christian Spro Giuseppe Guidi Dimosthenis Peftitsis
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1638774/

This paper investigates the power cycling methodology for reliability testing of SiC metal-oxide-semiconductor field-effect transistors (MOSFETs). Dedicated test benches were designed and built to study this issue. The results indicate that power cycling of SiC MOSFETs is affected by threshold...

Authors Fredrik T. B. W. Göthner Ole Christian Spro Magnar Hernes Dimosthenis Peftitsis
Year 2018
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1637260/

This paper presents a driver topology intended for WBG devices with the goal of improving the switching performance. In particular, the initial delay time of the switching transient was targeted. In high power and high frequency bridge converters, the dead time causes output voltage waveform...

Authors Ole Christian Spro Giuseppe Guidi Kjell Ljøkelsøy Magnar Hernes Ole-Morten Midtgård Tore Marvin Undeland
Year 2018
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1386529/

This paper describes a modelling approach suitable for assessments of future scenarios for renewable energy integration in large and interconnected power systems, based on sequential optimal power flow computations that take into account variability in power consumption, in renewable power...

Year 2016
Type Academic article