Modelle von EMV-Filterbauelementen, Zwischenkreisen, Anschlussleitungen und Asynchronmotoren für den Frequenzbereich von 10 kHz bis 30MHz sind in dieser Arbeit so entwickelt worden, dass sie schnell und einfach zu parametrisieren sind. So erhält man am Netzwerksimulator in kurzer Zeit eine Entwicklungsumgebung für den Entwurf von EMV-Netzfiltern un...
Power electronics has continuously been a crucial part of electrical engineering; it is how we transmit and convert electric energy, hence it is desired to develop good fundamental basics of power electronics for electrical engineers. Therefore the main objective of this research work is to create a program that provides an interactive, user friend...
Power system interface with electrified railways (ER), auxiliary power, hybrid trains, electromagnetic interface (EMI) and traction are reviewed in this paper for diesel electric trains and ERs. Auxiliary power supply is a low voltage AC/DC power supply for onboard devices with an important consideration for safety equipment. In diesel electric rai...
In this paper, a simple control strategy for maximum power extraction from stand-alone wind energy conversion system using induction generator under variable speed and load conditions is proposed. This is achieved by varying the inverter frequency and modulation index depending upon the changes in load at the IG terminal. The proposed method elimin...
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2006 / Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2006 / Bu tez çalışmasında sekiz bacaklı yürüyen bir mobil robot için gerekli olan tüm elektronik devrelerin tasarlanması amaçlanmıştır. Halihazırda üretilmiş olan mekanik altyapı...
The attractiveness of the smart piezoelectric technology is mainly due to its desirable features of miniaturization and the extreme simplicity of the resulting components compared to widely used wire wound conventional magnetics. As a result, much attention has been focused on the application of PETs in high frequency switching power supplies as we...
In this letter, we analyze the suitability of the double gate MOSFETs (DG MOSFETs) for RF-mixer applications from the point of optimizing the transconductance gain, power consumption, and area. Mixer topologies using the 0.13-μm conventional MOSFETs, simultaneously driven DG MOSFETs (SDDG) and the independently driven DG MOSFETs (IDDG) are compared...
Un des enjeux importants de ces dernières années est l'optimisation des structures. Ce travail de thèse propose une méthodologie de pré-dimensionnement pour les convertisseurs statiques. Celle-ci se veut être la plus générale possible et s'appuie sur la mise au point de modèles analytiques simples sur lesquels le compromis précision-rapidité a été ...
Nous présentons une approche dédiée à la conception des systèmes de conversion d'énergie, par association d'éléments caractérisés. A partir d'exigences formulées dans un cahier des charges, les objectifs sont de définir une structure saine à l'aide d'éléments prédéfinis. Dans ce cadre, nous avons adopté une méthode de caractérisation qui prend en c...
A new simulator capable of "direct" steady-state time-domain simulation of circuits with periodic inputs is described. A Newton-Raphson iterative procedure is used to compute the state variables such that, after integrating for one period, they return to their original values. Several Power Electronic circuit examples are discussed. It is shown tha...
