Results 41 to 50 of about 193,173 (339)
Improved analytical model for predicting the magnetic field distribution in brushless permanent-magnet machines [PDF]
, 2002 A general analytical technique predicts the magnetic field distribution in brushless permanent magnet machines equipped with surface-mounted magnets. It accounts for the effects of both the magnets and the stator windings.
Chan, C.C., Howe, D., Zhu, Z.Q.
core +2 more sources
Influence of the amount of permanent-magnet material in fractional-slot permanent-magnet synchronous machines [PDF]
, 2014 The efficiency of permanent-magnet (PM) synchronous machines with outer rotor and concentrated windings is investigated as a function of the mass of magnets used, keeping the power, volume, and mechanical air-gap thickness constant. In order to be useful
Sergeant, Peter, Van den Bossche, Alex
core +2 more sources
A novel dual-stator hybrid excited synchronous wind generator [PDF]
, 2009 This paper presents a novel dual-stator hybrid excited synchronous wind generator and describes its structural features and operation principle. The no-load magnetic fields with different field currents are computed by 3-D finite-element method.
Chengfeng, Y. +5 more
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Acta Technologica Agriculturae, 2018 The presented paper is focused on the development of an algorithm and software implementation of this algorithm into diagnostics of winding deformation in a single-phase power transformer with an unloaded tertiary winding in operational mode.
Dorozhko Sergey, Krivunev Andrey
doaj +1 more source
Energies, 2017 A transformer is the most valuable and expensive property for power utility, thus ensuring its reliable operation is a major task for both operators and researchers.
Zhongyong Zhao +5 more
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Dynamic investigation of Georges phenomenon related to three-phase wound-rotor induction motor
Journal of Electrical Systems and Information Technology, 2020 The aim of this paper is to analyze the performance of a three-phase wound-rotor induction motor (WRIM) under rotor windings asymmetry. The dynamic performance of the WRIM under healthy and rotor windings asymmetry with one-open-phase fault conditions is
R. R. Abdel-Wahab +2 more
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, 1984 The object of the invention is to provide an improved converter for converting one direct current voltage to another. A plurality of phased square wave voltages are provided from a ring counter through amplifiers to a like plurality of output ...
Garrett, H. +3 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT We sought to identify potential early risk biomarkers for lung disease in children post‐allogeneic HCT. Patients with pulmonary function tests 3 months post‐transplant and plasma samples between days 7 and 14 post‐HCT were included. Six of 27 subjects enrolled had reduced forced expiratory volume 1 (FEV1) z scores.
Isabella S. Small +3 more
wiley +1 more source
PhotonicsMechanical vibrations induced by electromagnetic forces during transformer operation can lead to winding deformation or failure, an issue responsible for over 12% of all transformer faults.
Najmeh Seifaddini +6 more
doaj +1 more source
Acta Polytechnica, 2019 In this paper, a method to calculate the winding factor by only considering stator parameters without the rotor ones is developed. This is interesting because it allows the separation of the stator and rotor design, unlike the existing methods in the ...
Daoud Ouamara +4 more
doaj +1 more source