Results 11 to 20 of about 26,094 (339)
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
doaj +1 more source
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
doaj +1 more source
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
Suppression of common-mode voltage in a PWM rectifier/inverter system [PDF]
, 2001 This paper proposes a PWM rectifier/inverter system capable of suppressing not only supply harmonic currents but also electromagnetic interference (EMI).
Akagi, Hirofumi, Ogasawara, Satoshi
core +1 more source
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
doaj +1 more source
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
doaj +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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source