Magnetic Core Evaluation Kit for the Comparison of Core Losses
status: published
Theoretical and experimental evaluation of the Integrated gate-commutated thyristor (IGCT) as a switch for Modular Multi...
A study on Integrated gate-commutated thyristors (IGCT) di/dt limiting inductance and RCD-clamp reduction/suppression using plastic module silicon (Si) fast recovery diodes and silicon carbide (SiC) diodes, in Modular Multilevel Converters (MMC). This PhD contains:- Analysis of existing HVDC MMC Submodules.- Assessment of the interest of the IGCT i...
A Methodology for designing SiC and GaN device based converters for automotive applications
Wide band-gap (WBG) devices enable power converter designs at higher frequency, power density, and efficiency, as compared to silicon-based converters. The coexistence for SiC (Silicon Carbide) and GaN (Gallium Nitride) devices in the ranges 600-900 V motivates a specific study of these components and the development of methods to perform better se...
Investigation of Pulse current capabilities of IGBTs and MOSFETs
TU Delft and KEMA laboratories are collaborating to create a Programmable high voltage test source by employing Modular Multilevel Converter MMC which can generate output voltage waveforms of any arbitrary shape. To produce an Impulse waveform of magnitude 250 kV across a capacitive load of 10 nF with a rise time of 1.2 µs as output voltage, each P...
Challenges of power electronics technologies for high power conversion in more electrical propulsion applications
The evolution towards More Electrical Aircraft (MEA) and hybridization of propulsion as well as the development of Urban Air Mobility (UAM) and Vertical Take Off and Landing (VTOL) concepts involves the development of flexible electrical architectures mostly designed around a DC power bus. Power electronics will be the core of these architectures, ...
Contribution to the design and control of the extended overlap-alternate arm converter
These thesis works mainly focus on the modeling, sizing and control of a hybrid-modularconverter named: Extended Overlap-Alternate Arm Converter (EO-AAC). The first objectiveof this thesis consists in the implementation of a systematic approach in the analysis of theoperation of this converter to understand the principles but also to allow a clear ...
Design of an 11kW DC-DC Resonant Converter for EV Charging with a 150-1000V Output Voltage Range
The worldwide adoption of Electric Vehicles (EV) has gained momentum in recent years, with more than 30% of all EVs being sold last year. Additionally, a new trend of 800 V battery architectures has appeared to allow for faster charging than the now common 400 V architectures. Future proof charging topologies should, therefore, be able to provide a...
Microinverter for Residential PV Systems
Up to 5 kW PV installations microinverters are common alternatives for the typical string solar inverters. The main draw back of the technology is the slight higher initial cost, however, a more efficient energy generation can be achieved if one of the PV modules are operated optimally at the maximum power point. This work shows that converters emp...
Design of an integrated high-voltage low-power isolated DC/DC converter for automotive applications
In the current context of energy and ecological transitions, a multiplication of high-voltage DC buses is observed in several applications, such as Electric Vehicles (EV) and photovoltaic. In parallel, there exist systems that require to be powered directly from the main supply source, like a Pyroswitch for immediate security in the automotive cont...
Determination of Conducted EM Emissions on DC–AC Power Converters Based on Linear Equivalent Thevenin Block Circuit Mode...
This article deals with circuit modeling of power systems and more particularly of DC/AC converters used for controlling electric motors. The objective of the model is to be able to assess conducted emission currents at both inputs and outputs in order to apply appropriate mitigation design rules such as filtering. First, we propose a linear Theven...
