Results 11 to 20 of about 26,042 (328)
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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Reduction of Leakage Current, Surge Voltage and Shaft Voltage in Variable-Speed AC Drives
IEEJ Transactions on Industry Applications, 1998 Satoshi Ogasawara
openalex +3 more sources
Variable - temperature scanning optical and force microscope [PDF]
, 2004 The implementation of a scanning microscope capable of working in confocal, atomic force and apertureless near field configurations is presented. The microscope is designed to operate in the temperature range 4 - 300 K, using conventional helium flow ...
Betzig E. +4 more
core +3 more sources
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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IEEE Access, 2021 Nonideal switching characteristics of voltage source inverter (VSI) will result in distortions in both phase currents and reference voltages of a permanent magnet synchronous machine (PMSM) drive system, which will also consequently introduce ripples ...
Shichao Zhou +7 more
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Robotics, 2021 The paper deals with software sensors which facilitates the diagnosis of electrical machines in non-stationary operating conditions. The technique targeted is order tracking for which different techniques exist to estimate the speed and angle of rotation.
Laurent Rambault +5 more
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Computer numerical control vertical machining centre feed drive modelling using the transmission line technique [PDF]
, 2014 This study presents a novel application of the Transmission Line Matrix Method (TLM) for the modelling of the dynamic behaviour of non-linear hybrid systems for CNC machine tool drives.
Bartlett H +7 more
core +1 more source
Energies, 2020 The paper firstly summarizes a simple analytical model of the air gap flux-density distribution for isotropic permanent magnet (PM) synchronous machines, in the presence of static eccentricity.
Andrea Del Pizzo +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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IEEE Access, 2019 To realize the non-contact measurement of the rotational shaft centerline orbit, a shaft centerline orbit reconstruction method using a specifically designed electrostatic sensor in conjunction with the neural network approximator is proposed in this ...
Kaihao Tang +4 more
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