Publicaties
Accuracy evaluation of miner's rule to predict electrolytic capacitor damage: insights from accelerated lifetime tests KU Leuven
This research study investigates the effectiveness of Miner's rule in predicting the lifetime of aluminium electrolytic capacitors. To conduct the study, a power cycling test bench is built to perform accelerated lifetime tests, subjecting the capacitors to mixed low- and high-stress conditions. The results indicate the presence of a load sequence and interaction effect, contradicting the assumptions of Miner's rule. Moreover, the results ...
A semi-Markovian approach to evaluate the availability of low voltage direct current systems with integrated battery storage KU Leuven
This paper presents a methodology for modeling the availability of \gls{lvdc} systems with battery storage, addressing the challenges posed by component failure through wear-out, the presence of many components, and the addition of battery storage to the system. While previous studies have explored various aspects of availability analysis for such systems, this methodology is unique in its comprehensive approach, combining component reliability ...
Comparison of GaN Enhancement Mode Transistor Performance With Integrated and External Driver KU Leuven
GaN components allow to reduce power losses as the lower specific on-resistance and higher switching speeds reduce both the conduction and switching loss. However, parasitics in the gate loop cause ringing which endangers the component. To counteract these problems the switching speed is lowered renouncing part of the components superior performance. A possible way to avoid gate loop parasitics and make circuit design less challenging is ...
A stepwise methodology for the design and evaluation of protection strategeies in LVDC microgrids KU Leuven
Over the past years, there has been an increasing scientific interest in Low Voltage DC grids as an alternative to traditional Low Voltage AC grids, driven by the energy transition. However, fault detection and protection of LVDC microgrids still poses an important challenge for their breakthrough on a large scale. Due to the required speed and reliability of LVDC microgrid protection, an increasing amount of research is focussing on local, ...