Publications by Lukas Fleischli

Description and Efficiency Comparison of Two 25 kVA DC/AC Isolation Modules

Alfred Rufer, Daniel Siemaszko, Lukas Fleischli, Frédéric Zurkinden, Irma Villar

In the frame of the European project UNIFLEX-PM, two AC/AC converter topologies hove been studied and implemented. Both converters, rated for 25 kVA, are isolated by a medium-frequency power transformer. The first topology is based on a dual active bridge ...

2009

Rendements Energétiques de Convertisseurs DC-AC 25kVA Isolés à Deux ou Trois Etages

Alfred Rufer, Daniel Siemaszko, Lukas Fleischli, Frédéric Zurkinden

Dans le cadre du projet européen UNIFLEX-PM, deux topologies de convertisseur AC/AC ont été étudiées et implémentés. Les deux convertisseurs réalisés sont isolés par un étage transformateur moyenne fréquence pour une puissance nominale de 25kW. La première ...

2008

Multichannel DC-DC Converter’s Efficiency Optimisation by variable Number of active Channels

Alfred Rufer, Sylvain Lemofouet-Gatsi, Lukas Fleischli

In the context of energy storage with supercapacitors, the so called round trip efficiency is an important factor that can be strongly affected by the characteristics or performances of the used converter. This paper presents a dedicated DC-DC converter, w ...

2006

Multichannel DC-DC Converter’s Efficiency Optimisation by variable Number of active Channels

Alfred Rufer, Sylvain Lemofouet-Gatsi, Lukas Fleischli

In the context of energy storage with supercapacitors, the so called round trip efficiency is an important factor that can be strongly affected by the characteristics or performances of the used converter. This paper presents a dedicated DC-DC converter, w ...

2006