Bild Simon Frank Simon Frank

M.Sc. Simon Frank

Studentische Abschlussarbeiten
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Stromrichterauslegung

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Stromrichterauslegung

Stromrichterauslegung

Stromrichter-Entwicklung
Stromrichter bei tiefen Temperaturen

Prüfsystem-Entwicklung

Einplatinenstromrichter

Prüfsystem-Entwicklung

Prüfplatzentwicklung

Leistungselektronik bei tiefen Temperaturen

 

Leistungselektronik bei tiefen Temperaturen

Leistungselektronik
Kryogene Leistungselektronik

Halbleiteruntersuchungen

GaN HEMTs

Analysis of powering schemes for a muon accelerator

Veröffentlichungen
Title Image Source Short Description

Link IEEE Explorer

In this paper, a Liquid Nitrogen (LN2) cooled Gallium Nitride (GaN) Cryogenic Full Bridge (CFB) is presented as part of a Dual Active Bridge (DAB) for use in a hybrid Liquid Hydrogen (LH2) High Temperature Superconductor (HTS) transmission line. The concept of a 20 kW DAB with cryogenic parts is outlined and the design of the CFB as one of the cryogenic parts is presented. Furthermore, the construction of a cryogenic test bench is described which is used to validate the functionality of the CFB and to characterize it. Finally, the first measurements of the prototype down to 82 Kelvin are presented, which confirm the increased efficiency of the GaN semiconductors at cryogenic temperatures.

Link IEEE-Explorer

This paper introduces a fully automated test bench for −75 °C up to 160 °C static and dynamic semiconductor characterization. First measurements performed with a 1.2 kV, 200 A Si-IGBT module and a 1.2 kV, 250 A SiC-MOSFET module show better semiconductor performance at lower temperatures compared to the conventional high temperature operation.

Link IEEE

Link MDPI

This study highlights the interdependencies between the design of a fully superconducting 10 MW wind power generator and the corresponding design of its power electronic converter.

Link IEEE-Explorer

Abstract:

This paper presents an intelligent, modular two level, three phase inverter platform for up to 1200 V DC-link voltage and 400 kW continuous power at 10 kHz switching frequency. It features an integrated signal processing system and various sensors, which allow standalone as well as cross-linked operation. Customizable software of the signal processing system allows easy adaption to different applications such as Active-Front-End (AFE), DC/DC-converters, Dual-Active-Bridges or Drive Inverters. Focus of this paper is a design guideline for an inverter platform which fulfills requirements of various applications with regard to sensor setup, control, failure management and monitoring. Design goal of the platform is a fast setup of new testbench concepts for academic research and novel applications.