Design of Processing System for State Diagnosis of Electrolytic Capacitors

Autor: Guy Grellet, Pascal Venet, Amine Lahyani

Publikováno v: european power electronics and drive journal
european power electronics and drive journal, 2001, 11 (1), pp.19-24
Scopus-Elsevier

International audience; In this paper, a system for predictive maintenance of electrolytic capacitors in static converters is presented. The failure of these capacitors leads to an increase of their equivalent series resistance ESR and therefore the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be7038c05d07a7248d65af557a0f0981
https://doi.org/10.1080/09398368.2001.11463474

Detection of an End-Ring Fault in Asynchronous Machines by Spectrum Analysis of the Observed Electromagnetic Torque

Autor: Guy Grellet, Hamed Yahoui

Publikováno v: Journal de Physique III. 6:443-448

For asynchronous machines, 20% of the failures are due to the rotor [1] and particularly the end-ring fault of cage motors. Studies [2, 4] have shown that a rotor fault generates flux harmonics which induce in term of harmonics in the stator currents

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03cf4e540b499f700f3dc8ae8579c62f
https://doi.org/10.1051/jp3:1996133

A nonlinear observer for induction motors

Autor: Hamed Yahoui, Guy Grellet, K. Busawon, A. Hammouri

Publikováno v: European Physical Journal: Applied Physics
European Physical Journal: Applied Physics, EDP Sciences, 2001, 15 (3), pp.181-188. ⟨10.1051/epjap:2001181⟩

International audience; In this paper, we give nonlinear observers for the estimation of the rotor flux and the load torque in an induction motor. The observers are designed on the basis of the standard alpha-beta Park's model. The performance of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7e010798c1da36412794541ab865856
https://hal.archives-ouvertes.fr/hal-00179687

Failure prediction of electrolytic capacitors during operation of a switchmode power supply

Autor: Guy Grellet, Pascal Venet, P.-J. Viverge, Amine Lahyani

Publikováno v: IEEE Transactions on Power Electronics
IEEE Transactions on Power Electronics, Institute of Electrical and Electronics Engineers, 1998, 13 (6), pp.1199-1207

Electrolytic filter capacitors are frequently responsible for static converter breakdowns. To predict these faults, a new method to set a predictive maintenance is presented and tested on two types of converters. The best indicator of fault of the ou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa6da74da439d26bc7c6edea4325d6c7
https://hal.archives-ouvertes.fr/hal-00141566

Monitoring of induction machines load torque disturbances: An alternative NN-based method

Autor: Carla Tassoni, Guy Grellet, Giovanni Franceschini, G. Salles, F. Filippetti

Publikováno v: Scopus-Elsevier

This paper addresses the problem of the real time rebuilding of the load torque disturbances in asynchronous machines. Since the load pattern modifies the motor's supply current, it should be possible to use the current pattern to rebuild torque patt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::851b1662e0e8276e128bec8e4e3fdff0
http://www.scopus.com/inward/record.url?eid=2-s2.0-0032306547&partnerID=MN8TOARS