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Negative Sequence Control for Virtual Synchronous Machines Under Unbalanced Conditions

status: published

Thermally Aware Design Approaches for High Power Density Ultra-Wide Bandgap Power Electronics

Ultra-wide bandgap (UWBG) semiconductors like β-type gallium oxide (β-Ga2O3) show promise for the development of next-generation high power density electronics devices such as RF and power electronics. The large bandgap (4.8 eV), high breakdown fields (8 MV/cm), and excellent thermal stability of β-Ga2O3 give promise to the production of low-loss p...

Étude de la robustesse de transistors GaN en régime de court-circuit

Cette thèse vise à évaluer la robustesse en court-circuit de transistors GaN 600 V normally-off du commerce. Une revue de la littérature décrit les différentes structures des transistors GaN, leurs applications possibles, et balaie les essais de court-circuit réalisés de 2013 à 2021. La robustesse des transistors est évaluée par la mesure de la dur...

Hybrid control of self-oscillating resonant converters

We describe parallel and series resonant converters via a unified set of input-dependent coordinates whose dynamics is intrinsically hybrid. We then propose a hybrid feedback showing a self-oscillating behavior whose amplitude and frequency can be adjusted by a reference input ranging from zero to π. For any reference value in that range we give a ...

Simulation Of Power Electronics Of Electrical Systems In Ev’S Using Scilab

Published in Journal of Physics: Conference Series

The need for electric vehicles is expanding vastly and so are the methods by which electric vehicle technology could help to reduce the carbon production and make the environment more pollution free. This research emphasizes on power electronic systems such as Buck and Boost converters used in electric vehicles through Scilab simulations. It draws ...

Comparison of conventional and new cascaded multilevel inverter topologies based on novel indices.

Published in ISA transactions

This paper proposes new indices of cascaded multilevel inverters (MLIs) in order to compare the conventional topology with 10-existed new topologies. Reduction in the number of power switches is the main target of these new topologies. This aim is to reduce the total cost of designed inverters, though the mentioned aim is not enough to design new i...

Harmonics Mitigation Filter for High-Power Applications

This research work proposes a cost-effective Hybrid Active Harmonic Filter (HAHF) method to mitigate current harmonics in an industrial or commercial power network. The proposed HAHF is based on a Silicon-Controlled Rectifier with an Electronic Inductor (SCR-EI) topology with a reduced number of fully active switches and a better harmonic performan...

Functional needs and potential technologies, to enable the stepwise development of HVDC multi-terminal grids

The introduction of modular multilevel converters (MMCs) created a new momentum in the field of high voltage direct current (HVDC). HVDC is not anymore used only in point-to-point links embedded in ac systems or between asynchronous areas. It is now also used to transport power from offshore wind farms (OWF) far from shore to land and multi-termina...