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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
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Wave Profile for Current Bearing Antiforce Waves [PDF]
Journal of the Arkansas Academy of Science, 2013 For fluid dynamical analysis of breakdown waves, we employ a one-dimensional, three-component (electrons, ions and neutral particles) fluid model to describe a steady-state, ionizing wave propagating counter to strong electric fields.
Childs, W. +4 more
core +5 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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IET Electric Power Applications, 2022 The bearing voltage brings premature failure of the motor bearings in the subway traction system, which is related to the stray capacitance of the motor.
Ruifang Liu +3 more
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Bearing Current and Shaft Voltage in Electrical Machines: A Comprehensive Research Review
Machines, 2023 The reliability assessment of electric machines plays a very critical role in today’s engineering world. The reliability assessment requires a good understanding of electric motors and their root causes.
Kotb B. Tawfiq +2 more
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Electrostatic discharge impacts on the main shaft bearings of wind turbines [PDF]
Wind Energy Science, 2023 This paper studies the electrostatic discharge effect in wind turbines, a possible trigger source of the main bearing current. A lab setup with a charge generator and downsized wind turbine was built to verify the impact of electrostatic discharge on the
J. Zhao, X. Xu, O. Carlson
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Energies, 2022 Pulse-width modulation (PWM) inverter drive systems are widely applied in industry for their great speed-control characteristics and performance. However, the common-mode voltage of the inverter induces motor bearing voltage and bearing current, which ...
Lei Yang +5 more
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A Review of Reduction Methods of Impact of Common-Mode Voltage on Electric Drives
Energies, 2021 In this survey paper, typical solutions that focus on the reduction in negative effects resulting from the common-mode voltage influence in AC motor drive applications are re-examined.
Marek Turzyński, Piotr Musznicki
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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
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A Collocated Eddy-Current Displacement Sensor for Magnetic Bearings [PDF]
한국정밀공학회지, 2022 Magnetic bearings use electromagnetic force to support the rotating shaft without any mechanical contact and actively control shaft vibration; hence, there is no mechanical friction and wear due to contact during the operation, and it has a semi ...
Sheng He Jin +2 more
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