Results 61 to 70 of about 2,383,589 (201)
EnergiesCurrent harmonics in six-phase permanent magnet synchronous motors (PMSMs) arise from inherent asymmetries caused by manufacturing tolerances and nonlinear characteristics in the inverter output. Additionally, magnetic saturation and slight imbalances in
Yu-Ting Lin +2 more
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A multifunctional dynamic voltage restorer for power quality improvement [PDF]
, 2018 Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious ...
Dung, Vo Tien +2 more
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Kongzhi Yu Xinxi Jishu, 2015 Power quality problems of negative sequence current, voltage fluctuation and low power factor in traction power supply system are caused by the high-speed electric railway’s unique power mode and complex operating conditions of electric locomotives ...
GONG Fen +3 more
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A negative sequence current injection (NSCI)-based active protection scheme for islanded microgrids
International Journal of Electrical Power & Energy SystemsThe growing penetration of converter interfaced generation creates unprecedented challenges to protection strategies at all voltage levels. This paper proposes a novel Negative Sequence Current Injection (NSCI)-based active protection scheme for islanded
Zhenkun Yang +2 more
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Line-start permanent-magnet motor single-phase steady-state performance analysis [PDF]
, 2003 This paper describes an efficient calculating procedure for the steady-state operation of a single-phase line-start capacitor-run permanent-magnet motor.
Cossar, C. +6 more
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Effects of DC-Current for Short-Time Negative Sequence Current of Synchronous Machine
IEEJ Transactions on Industry Applications, 2001 When a line-to-lire short-circuit occurs, the positive-sequence-, the negative-sequence-and the DC-current flow in the armature winding of synchronous machine. The negative-sequence current is limited in JEC-114, as this current causes the induced current and the overheat on the surface of the rotor.
openaire +2 more sources
ERP analysis of cognitive sequencing : a left-anterior negativity related to structural transformation processing [PDF]
, 2000 A major objective of cognitive neuroscience is to identify those neurocomputational processes that may be shared by multiple cognitive functions vs those that are highly specifc.
Dominey, Peter-Ford, Hoen, Michel
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Stars of extragalactic origin in the solar neighborhood [PDF]
, 2004 We computed the spatial velocities and the galactic orbital elements using Hipparcos data for 77 nearest main-sequence F-G-stars with published the iron, magnesium, and europium abundances determined from high dispersion spectra and with the ages ...
B. Edvardsson +36 more
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International Journal of Electrical Power & Energy SystemsThe open-phase operation of the AC connection line connecting the wind farm and MMC generates negative sequence current in the system, which cause the overcurrent, overvoltage, power fluctuation and other problems.
Botong Li +5 more
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Sustainable Adjustment of Global Imbalances [PDF]
This paper uses NIESR’s global econometric model, NiGEM, to analyse possible adjustment paths for the US current account, if its current level of 6 per cent of GDP proves unsustainable.
Dawn Holland, Ian Hurst, Ray Barrell
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