Results 11 to 20 of about 12,916,031 (272)
Novel Stator Slot Opening to Reduce Electrical Machine Bearing Currents [PDF]
IEEE transactions on magnetics, 2023 Ball bearings are largely used in electrical machines, where high-frequency common-mode currents affect their lifetime. This document presents a novel zig-zag stator slot opening (SO) geometry to reduce the winding-to-rotor capacitance $C_{\text {wr}}$
D. De Gaetano +5 more
semanticscholar +2 more sources
Lubricants, 2023 Within this paper, electro-mechanical long-term tests on a thrust bearing were presented. The effects of an additional electrical load on the bearing raceways and the used lubricant were investigated.
Simon Graf, Oliver Koch, Bernd Sauer
doaj +3 more sources
LubricantsThis study investigates the effects of harmful bearing currents on the service life of rolling bearings and introduces a model to predict service life as a function of surface roughness. Harmful bearing currents, resulting from electrical discharges, can
Volker Schneider +3 more
doaj +2 more sources
Energies, 2022 The high frequency PWM voltage pulses from a two-level six-switch inverter produce a common-mode voltage in an electric machine’s windings, a fraction of which appears on the machine shaft due to electrostatic (capacitive) coupling.
Ryan Collin +2 more
doaj +2 more sources
Investigation on H-8 VSI architecture for bearing currents mitigation in VFD
Annual Conference of the IEEE Industrial Electronics Society, 2017 This paper assesses the use of a modified three phase VSI topology with additional switches (H8) together with suitable modulation techniques as a mean for common-mode voltage reduction in electric drives with the aim of mitigating the onset of harmful ...
D. Barater +3 more
semanticscholar +2 more sources
Time-Frequency Vibration Analysis for the Detection of Motor Damages Caused by Bearing Currents
Mechanical Systems and Signal Processing, 2017 Vicente Climente-Alarcon +2 more
exaly +2 more sources
Method of Limiting Shaft Voltages in AC Electric Machines
Energies, 2021 The article presents a new method of counteracting shaft voltages and currents in AC electrical machines. It is based on the use of an auxiliary winding located in the stator of the machine.
Sebastian Berhausen, Tomasz Jarek
doaj +1 more source
On the Application of Extended Grounded Slot Electrodes to Reduce Noncirculating Bearing Currents
IEEE transactions on industrial electronics (1982. Print), 2023 Power-electronic-converter-induced motor bearing currents are a widespread problem in the field of electrical drives. Parasitic capacitances between the electrical machine's parts provide a path for leakage currents, which finally harm metallic ball ...
K. Vostrov +4 more
semanticscholar +1 more source
IEEE Access, 2021 The emergence of fast-switching wide-bandgap (GaN, SiC) power electronics devices has enabled motor drive systems to achieve high efficiency, power density, control bandwidth and high-level of integration.
Yipu Xu +6 more
doaj +1 more source
, 2023 This is the repository of the paper titled "Bearing fault detection and recognition from supply currents with decision trees"; authors: Giovanni Briglia, Fabio Immovilli, Marco Cocconcelli and Marco ...
Giovanni Briglia
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