Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Th. M. Wolbank"'
Publikováno v:
IEEE Transactions on Industry Applications. 53:2679-2689
The demand for condition monitoring systems to prevent a breakdown of electrical machines is continuously increasing. A failure or collapse of the insulation is one of the main reasons for a machine outage, both in the field of high-voltage machines
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2561c86c75b715fe073f7d6418f98a7
https://doi.org/10.1109/tia.2017.2661718
https://doi.org/10.1109/tia.2017.2661718
Autor:
Th. M. Wolbank, M. A. Samonig
Publikováno v:
2017 IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED).
The paper investigates the influence of pole-pair number on the mixed eccentricity related fault indicators extracted by means of high-frequency or transient signal injection. The method exploits the transient current response to track eccentricity-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8059b841186b581ac8ef6e19eab24c07
https://doi.org/10.1109/demped.2017.8062333
https://doi.org/10.1109/demped.2017.8062333
Publikováno v:
IECON
Condition monitoring of inverter-fed drives is gaining a more important role. Inverter operation enables maximum utilization of a drive. However, some parasitic phenomena may occur, e.g. bearing currents, temperature increase due to additional losses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17d3dd8368e45107b0548abf9778f017
https://doi.org/10.1109/iecon.2016.7793671
https://doi.org/10.1109/iecon.2016.7793671
Publikováno v:
2016 IEEE Energy Conversion Congress and Exposition (ECCE).
Reflected wave transient phenomena in voltages and currents of inverter-fed drives caused by voltage source inverters (VSI) operating with pulse width modulation (PWM) with high dv/dt rates are well known and analyzed in many studies. The reflection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61896b9df1e44a67a2e1f469869bfa28
https://doi.org/10.1109/ecce.2016.7855213
https://doi.org/10.1109/ecce.2016.7855213
Publikováno v:
2016 XXII International Conference on Electrical Machines (ICEM).
The demand for AC machines in traction applications fed by voltage source inverters is increasing. These highly efficient drives working near and even above their rated values are expected to operate for many years or even decades. Thus, condition mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0ca936a5e97680cdf271924f501a4fa
https://doi.org/10.1109/icelmach.2016.7732665
https://doi.org/10.1109/icelmach.2016.7732665
Publikováno v:
2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM).
Insulation condition monitoring is important in case of inverter-fed machines due to the high strains on the machine and especially on its winding insulation system. In particular in traction applications the usage of new emerging semiconductor techn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf27fc5d5bfd035b627db548d5bd0585
https://doi.org/10.1109/speedam.2016.7525858
https://doi.org/10.1109/speedam.2016.7525858
Online insulation condition monitoring of traction machines using inverter induced voltage injection
Publikováno v:
IECON
Stator insulation defects in the machine winding of traction drives can be analyzed by evaluating the current response resulting to inverter induced voltage injection. Due to effects occurring during the aging of the insulation, e.g. change of parasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfec0d6c101546acc418441bfa946737
https://doi.org/10.1109/iecon.2015.7392471
https://doi.org/10.1109/iecon.2015.7392471
Publikováno v:
IECON
This paper investigates the feasibility of sensorless position estimation from PWM-induced transient excitation sequences, present during inverter-driven operation of induction machines (IM) with standard space vector PWM (SVPWM). The applied method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5038ffa43eff6daaf4044abe42c0344
https://doi.org/10.1109/iecon.2015.7392621
https://doi.org/10.1109/iecon.2015.7392621
Publikováno v:
2015 IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED).
In order to investigate insulation degradation of high voltage traction drives, series of measurements on form wound coil specimens have been done. These stator bars have been aged by different accelerated aging cycles until the failure of the insula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2ad8b880e6044e79dcc2befcc5c9bc4
https://doi.org/10.1109/demped.2015.7303700
https://doi.org/10.1109/demped.2015.7303700
Autor:
Th. M. Wolbank
Publikováno v:
2015 IEEE Energy Conversion Congress and Exposition (ECCE).
Condition monitoring is gaining more and more importance in the past few years. As inverter fed operation puts additional stress on the machine's insulation system a breakdown of a drive system associated with costly outage of industrial processes or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a920971b81333d3c00219fea15d62bc8
https://doi.org/10.1109/ecce.2015.7310236
https://doi.org/10.1109/ecce.2015.7310236