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Simulation of the Circulating Bearing Currents for Different Stator Designs of Electric Traction Machines [PDF]
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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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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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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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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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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Lubricants, 2023 The reason for the failure of electric vehicle drives is increasingly current-induced damage to rolling bearings. Studies show that rolling bearings are more susceptible to current pass-through after the first occurrence of unwanted bearing currents.
Steffen Puchtler +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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Electrical Bearing Damage, A Problem in the Nano- and Macro-Range
Lubricants, 2022 Rolling bearings face different damaging effects: Besides mechanical effects, current-induced bearing damage occurs in electrical drive systems. Therefore, it is of increasing interest to understand the differences leading to known electrical damage ...
Volker Schneider +9 more
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