Results 1 to 10 of about 12,916,031 (272)
Machines, 2023 Pulse–width modulated inverters are commonly used to control electrical drives, generating a common mode voltage and current with high–frequency components that excite the parasitic capacitances within electric machines, such as permanent magnet ...
Yusa Tombul +2 more
doaj +5 more sources
Influencing Factors on the Fluting in an Axial Ball Bearing at DC Bearing Currents
Lubricants, 2023 The effect of variable DC bearing current amplitude, bearing current polarity, mechanical force, rotation speed, bearing temperature, and number of the balls on the fluting in an axial ball bearing type 51208 is investigated under DC currents.
Omid Safdarzadeh +4 more
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The Influence of Lubricant Conductivity on Bearing Currents in the Case of Rolling Bearing Greases [PDF]
Lubricants, 2019 In the course of increasing electric mobility, the effect of electricity on parts of machines is more significant than before. Rolling bearings and their lubrication, as a part of electric motors, are subjected to harmful currents, which lead to damage in the bearing in the long term. In order to avoid such damage, the influence of the lubricant in the
Bernd Sauer, Reşat Capan, Dani Bechev
exaly +4 more sources
EnergiesThe present paper deals with a review on bearing currents in electrical machines, with major emphasis on mechanisms, impacts, and mitigation strategies.
Tianyi Pei +3 more
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Motor Bearing Damage Induced by Bearing Current: A Review
Machines, 2022 The occurrence of the motor shaft voltage and bearing current caused by the inverter will aggravate bearing damage and lead to the premature failure of bearings.
Jiaojiao Ma +4 more
doaj +3 more sources
Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors
Energies, 2019 With the wide application of pulse width modulation (PWM) technology in motor driving, the bearing current problem has become more and more severe. The most complicated problem in analyzing bearing currents is modeling the equivalent circuit of the ...
Xuejiao Ren, Ruifang Liu, Erle Yang
doaj +3 more sources
IEEE Access, 2021 Compared with silicon (Si) IGBTs, silicon carbide (SiC) MOSFETs have much faster switching speeds and high switching frequency operation capability, enabling compact and high-efficiency motor drive systems.
Yipu Xu +4 more
doaj +2 more sources
IEEE Access, 2022 The converter switching in variable-frequency drives can generate high frequency common mode voltage between the machine winding and the converter ground, leading to high frequency parasitic currents which can flow through the machine bearings unless ...
Wenjun Zhu +4 more
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IEEE Transactions on Industrial Electronics, 2021 Modern converter-supplied ac motors are exposed to bearing currents. Despite extensive research and development, the industry still does not have a final solution with acceptable cost and high efficiency.
Pia Lindh +2 more
exaly +2 more sources
The Use of Bearing Currents and Vibrations in Lifetime Estimation of Bearings
IEEE Transactions on Industrial Informatics, 2017 Electric discharge machining current causes a significant amount of damage to bearings, producing pits in the rotating elements of the bearing, and ultimately leading to bearing failure. Although this relationship is well known and studied, little work has been done to relate bearing current discharge events to bearing vibrations for bearing failure ...
Rodney K. Singleton +2 more
openaire +3 more sources