Results 1 to 10 of about 26,094 (339)

Method of Limiting Shaft Voltages in AC Electric Machines [PDF]

open access: goldEnergies, 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
doaj   +6 more sources

Turboset shaft voltage [PDF]

open access: diamondZbornik 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
doaj   +4 more sources

A Comprehensive Review of Shaft Voltages and Bearing Currents, Measurements and Monitoring Systems in Large Turbogenerators

open access: goldEnergies
Turbine 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
doaj   +4 more sources

Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction [PDF]

open access: goldEnergies, 2020
Adjustable speed drives use Pulse Width Modulation (PWM) to switch DC-bus voltage for the synthesis of three-phase voltages to provide power to the permanent magnet synchronous motor (PMSM).
Muhammad Aqil, Jun-Hyuk Im, Jin Hur
doaj   +2 more sources

New Modulation Technique to Mitigate Common Mode Voltage Effects in Star-Connected Five-Phase AC Drives [PDF]

open access: yesEnergies, 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
doaj   +4 more sources

A Contactless Low-Carbon Steel Magnetostrictive Torquemeter: Numerical Analysis and Experimental Validation [PDF]

open access: yesSensors
Torque 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
doaj   +2 more sources

Analysis, calculation and reduction of shaft voltage in induction generators

open access: bronzeRE&PQJ, 2009
This paper presents analysis of shaft voltage in different configurations of a Doubly Fed Induction Generator (DFIG) and an Induction Generator (IG) with a back-to-back inverter in wind turbine applications. Detailed high frequency model of the proposed systems have been developed based on existing capacitive couplings in IG & DFIG structures and ...
Jafar Adabi, Firuz Zare
openalex   +3 more sources

Investigating nonlinear dynamic properties of an inertial sensor with rotational velocity-dependent rigidity [PDF]

open access: yesScientific Reports
This 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
doaj   +2 more sources

Research of the Electric Drive with Intermittent Motion Law [PDF]

open access: yesОмский 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
doaj   +1 more source

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