Results 31 to 40 of about 36,146 (304)

BPS Configuration of Supermembrane With Winding in M-direction [PDF]

open access: yes, 1997
We study de Wit-Hoppe-Nicolai supermembrane with emphasis on the winding in M-direction. We propose a SUSY algebra of the supermembrane in the Lorentz invariant form.
Banks   +18 more
core   +5 more sources

Harmonic Analysis of DFIG Wind Turbine

open access: yes, 2022
This proposal investigates the self-excitation of the asynchronous generator while operating in an isolated mode. With this research, we hope to improve the quality of electrical energy produced under various environmental conditions and to promote the use of renewable energies throughout rural areas in order to better support rural areas in the areas ...
Uriti Sai Abhishek, DR. T. R. Jyothsna
openaire   +1 more source

An Inductive Active Filtering Method for Low-Voltage Distribution Networks

open access: yesMachines, 2021
Three-phase unbalanced and nonlinear loads aggravate harmonic problems in low-voltage distribution networks. In this paper, a hybrid inductive and active filter (HIAF) system with a Ddy converter transformer is proposed.
Delu Li   +3 more
doaj   +1 more source

Eddy-current loss in the rotor magnets of permanent-magnet brushless machines having a fractional number of slots per pole [PDF]

open access: yes, 2005
We develop an analytical model for predicting the eddy-current loss in the rotor magnets of permanent-magnet brushless machines that have a fractional number of slots per pole, when either all the teeth or only alternate teeth are wound, and in which the
Howe, D., Ishak, D., Zhu, Z.Q.
core   +1 more source

Effect of winding harmonics on the asynchronous torque of a single-phase line start permanant-magnet motor [PDF]

open access: yes, 2005
This paper presents an analytical method for calculating the effect of winding harmonics on the asynchronous torque of a single-phase line-start permanent-magnet motor.
daSilva, C.   +5 more
core   +1 more source

Analysis of AC winding loss of permanent magnet synchronous traction motor with high power

open access: yes机车电传动, 2022
In a multiple-pole and high-power PMSTM with high fundamental frequency, the harmonic frequency of the internal magnetic field increases accordingly. The harmonic magnetic field will induce eddy current in the winding, resulting in high-frequency eddy ...
LI Xiangcheng   +3 more
doaj  

General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding [PDF]

open access: yes, 2014
this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated.
ASLAN, Bassel   +2 more
core   +6 more sources

New Optimized Fractional Slot Concentrated Winding Design for Torque Ripple Minimization in Permanent Magnet Machine

open access: yesAdvances in Electrical and Computer Engineering, 2021
This paper presents a new optimized fractional slot concentrated winding (FSCW) design for torque ripple minimization in permanent magnet motors through space harmonic reduction.
BANCHHOR, D. K., DHABALE, A.
doaj   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

open access: yes, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Abbas   +121 more
core   +1 more source

Novel 24-slots14-poles fractional-slot concentrated winding topology with low-space harmonics for electrical machine

open access: yesThe Journal of Engineering, 2019
This paper proposes a novel winding layout for the electric machines with fractional-slot concentrated windings (FSCW) using a stator shifting concept, with which all the non-working harmonics can be completely cancelled or significantly reduced and the ...
Shaohong Zhu   +4 more
doaj   +1 more source

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