Fouineau, Alexis
Les Transformateurs Moyenne Fréquence (TMF) sont une technologie innovante par rapport aux transformateurs basse fréquence, avec la promesse d’une réduction de volume et d’une augmentation du rendement. Cette thèse s’intéresse en particulier à leur conception pour des applications haute tension forte puissance, telles que les réseaux haute tension ...
mandrile, f. carpaneto, e. bojoi, r.
Alves, B. S. Kuo-Peng, P. Dular, Patrick
peer reviewed / In this paper, classical approaches to evaluate leakage reactance in power transformers, that is, the simple analytical model, the Rogowski and the Stephens methods, are compared with each other and its limitations are exposed. To generalize and to improve the accuracy of the transformer leakage reactance evaluation, the authors pro...
borlo, stefano cittanti, davide GREGORIO, MATTEO mandrile, fabio musumeci, salvatore
Lee, Jongsu Lee, Changwoo
Published in
International Journal of Precision Engineering and Manufacturing
The use of the splicing system is necessary to exchange a fully unwound roll to a new one without stopping the roll-to-roll manufacturing machine. However, abrupt tension changes and tail defects, which is an overlap of completely unwound films with films in the process of being unwound, could occur during the roll exchange phase causing film loss ...
Al Eit, M. Dular, Patrick Bouillault, F. Marchand, C. Krebs, G.
peer reviewed / Copper losses dissipated in the windings of electric machines are the sum of classical ohmic dc losses and additional ac eddy current losses. In fact, the level of eddy current losses is strongly correlated with the manner of disposition of coil conductors in machine slots. Then, to improve the efficiency in electric machines, the s...
Yang, Shicheng
This thesis investigates passive non-reciprocal components (mainly circulators) based on ferrite Low Temperature Co-fired Ceramic (LTCC) substrate. The external magnets used in conventional circulators must be strong to overcome the ferrite's demagnetization field. The novel circulator presented herein uses an embedded winding within the ferrite su...
BOJOI, IUSTIN RADU CAVAGNINO, ANDREA ODHANO, SHAFIQ AHMED TENCONI, Alberto VASCHETTO, SILVIO
In this paper, a fault assessment of a multiphase permanent magnet generator designed for `more electric engine' aeronautic applications is presented. The distribution of various electrical faults occurring in three-phase machines that is available in the literature helped the authors to identify the most probable fault types. The six-phase machine...
Profeta, Christophe Simon, Thomas
We investigate the windings around the origin of the two-dimensional Markov process (X,L) having the stable Lévy process L and its primitive X as coordinates, in the non-trivial case when |L| is not a subordinator. First, we show that these windings have an almost sure limit velocity, extending McKean's result [McK63] in the Brownian case. Second, ...
Sarkar, Ashok Mukhopadhyay, Arup Ranjan Ghosh, Sadhan Kumar
Published in
OPSEARCH
In Lean Six Sigma one of the primary objectives is to identify and eliminate the waiting or idle time for enhancing productivity and reducing production cost. However, in some situations it is better to replace ‘elimination’ by ‘optimization’ due to the presence of conflicting requirements. Optimization techniques in the form of queuing models are ...