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Method of Limiting Shaft Voltages in AC Electric Machines [PDF]
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
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Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2016 The paper presents an analyses of shaft voltage and bearing current phenomena in electrical machines. An overview of the causes of these voltages and currents and their possible consequences is also given. The influence of the thyristor excitation system
Klasnić Ilija +2 more
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Formation of Corrugated Damage on Bearing Race under Different AC Shaft Voltages. [PDF]
Materials (Basel)Corrugated damage to bearings is a common fault in electrical facilities such as new energy vehicles, wind power, and high-speed railways. The aim of this article is to reveal the microscopic characteristics and formation mechanism of such damages.
Lou Z +6 more
europepmc +2 more sources
EnergiesTurbine generators are essential for power generation, but the presence of shaft voltages and currents poses significant challenges to their reliability, efficiency, and operational lifespan.
Katudi Oupa Mailula, Akshay K. Saha
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A Contactless Low-Carbon Steel Magnetostrictive Torquemeter: Numerical Analysis and Experimental Validation [PDF]
SensorsTorque measurement is a key task in several mechanical and structural engineering applications. Most commercial torquemeters require the shaft to be interrupted to place the sensors between the two portions of the shaft where a torque has to be measured.
Carmine Stefano Clemente +7 more
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Investigating nonlinear dynamic properties of an inertial sensor with rotational velocity-dependent rigidity [PDF]
Scientific ReportsThis study investigates the nonlinear dynamics of a system with frequency-dependent stiffness using a MEMS-based capacitive inertial sensor as a case study.
Mina Ghanbari +3 more
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Research of the Electric Drive with Intermittent Motion Law [PDF]
Омский научный вестник, 2020 An electric drive with an intermittent law of the shaft motion of the executive motor, which is widely used in various fields of industry, is considered.
N. A. Voronina +3 more
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PENGARUH JARAK MISALIGNMENT DRIVE SHAFT COOLING TOWER TERHADAP TEGANGAN NORMAL DAN TEGANGAN GESER
Rekayasa Mesin, 2022 The purpose of this study was to determine the effect of misalignment distance of Cooling Tower drive shaft on normal stress and shear stress. Tensions that occur on the shaft continuously for a long time cause the shaft to experience fatigue.
Rachmat Subagyo +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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Energies, 2023 This paper proposed a simplified modeling approach for a power quality (PQ) assessment of Electric Submersible Pumps (ESP) systems supplied by the two-level, the neutral-point-clamped three-level, and the cascaded H-bridge (CHB) multilevel inverter VFD ...
Pascal M. Lingom +4 more
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