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...
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...
Cet article présente une modélisation du convertisseur modulaire multiniveaux (MMC) qui se veut modulaire à l'image de sa topologie. La modélisation du MMC est composée de deux parties, une partie bas-niveau qui traite de la description des sous-modules (SM) qui composent le MMC et une partie haut-niveau qui représente le comportement du MMC avec s...
This project proposes a new hybrid voltage divider DC-DC converter that utilizes switching capacitors and inductors to produce zero voltage switching (ZVS) at the turn on state of its switches. By achieving ZVS, the switching losses are significantly reduced; thus, increasing the overall efficiency of the converter at various loads. The goal for th...
This paper deals with system level EMC models for power electronics converter, able to investigate the conducted emissions in embedded grid, for instance. The model topology presented in this work is not symmetric and its identification does not rely on the usual Differential / Common Mode separation. The identification method is presented, and the...
This thesis entails the stability analysis of the Multiple Input Single Output (MISO) DC-DC converter developed for the DC House Project at Cal Poly. A frequency domain control system model of the MISO converter was designed and constructed using MATLAB Simulink. Transfer functions were derived and modeled for each stage of the converter to best fi...
Solar Bora AB is a Linköping based company that provides end to end solution for clean and reliable energy. System developed by them generates high power 230V AC to run electrical appliances. The system consist of string of batteries which are charged by rooftop solar cells and the energy stored in the batteries is converted to AC to provide a grid...
The advent of flexible electronics has brought about rapid research towards sensors, bio implantable and wearable devices for assessment of diseases such as epilepsy, Parkinson’s and heart attacks. Memory devices are major component in any electronic circuits, only secondary to transistors, therefore many research efforts are devoted to the develop...
With the progressive rise of the micro-grids incorporating renewable energy sources, a new electricity distribution paradigm is emerging. These new architectures interface uncontrolled consumers with intermittent energy sources, therefore imposing more stress on the conversion, storage and management of the energy.Power converters are adapting acco...
Cette thèse s'inscrit dans un contexte de développement durable où les enjeux énergétiques consistent à concevoir des convertisseurs de puissance plus disséminés, donc avec une Spécification ambitieuse en termes de densités massique et volumique. Les composants à semiconducteur dit à grand Gap permettent l’augmentation de la fréquence de commutatio...
