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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
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New Modulation Technique to Mitigate Common Mode Voltage Effects in Star-Connected Five-Phase AC Drives [PDF]
Energies, 2020 Star-connected multiphase AC drives are being considered for electromovility applications such as electromechanical actuators (EMA), where high power density and fault tolerance is demanded.
Markel Fernandez +5 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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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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Influence of Electric Discharges on Bearings of Electric Machina [PDF]
Advances in Electrical and Electronic Engineering, 2008 Bearing currents are one of cause’s bearings faults. The character of a lubricator belongs to main factor influencing an inception of bearing currents. We have analyzed the electric character variety kind of lubricators; the influence of lubricators on a
Jiri Foldyna +2 more
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Electrical bearing failures in electric vehicles
Friction, 2020 In modern electric equipment, especially electric vehicles, inverter control systems can lead to complex shaft voltages and bearing currents. Within an electric motor, many parts have electrical failure problems, and among which bearings are the most ...
Feng He, Guoxin Xie, Jianbin Luo
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LubricantsElectric motors play a decisive role in electric vehicles by converting electrical energy into mechanical motion across various drivetrain components.
Rohan Lokhande +5 more
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An Autoregressive-Based Motor Current Signature Analysis Approach for Fault Diagnosis of Electric Motor-Driven Mechanisms [PDF]
SensorsMaintenance strategies such as condition-based maintenance and predictive maintenance of machines have gained importance in industrial automation firms as key concepts in Industry 4.0. As a result, online condition monitoring of electromechanical systems
Roberto Diversi +3 more
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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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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
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