Results 11 to 20 of about 36,237 (284)

Tri-axial Octupole Deformations and Shell Structure [PDF]

open access: yes, 1999
Manifestations of pronounced shell effects are discovered when adding nonaxial octupole deformations to a harmonic oscillator model. The degeneracies of the quantum spectra are in a good agreement with the corresponding main periodic orbits and winding ...
A. Bohr   +20 more
core   +2 more sources

Assisted software design of a wide variety of windings in rotating electrical machinery [PDF]

open access: yes, 2014
In this paper a software developed by the Authors for winding design is presented. In particular, this software can be used as a valid aid in design and analysis for a wide variety of windings with generic number of phases, pole pairs, slot number, etc ...
DI TOMMASO, Antonino Oscar   +3 more
core   +1 more source

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

Tubular modular permanent-magnet machines equipped with quasi-Halbach magnetized magnets - Part II: Armature reaction and design optimization [PDF]

open access: yes, 2005
Using the analytical formulas derived in Part I for predicting the magnetic field distribution, thrust force, and electromotive force of a three-phase tubular modular permanent-magnet machine equipped with quasi-Halbach magnetized magnets, this paper ...
Howe, D., Wang, J.B.
core   +1 more source

Topological string in harmonic space and correlation functions in $S^3$ stringy cosmology [PDF]

open access: yes, 2006
We develop the harmonic space method for conifold and use it to study local complex deformations of $T^{\ast}S^{3}$ preserving manifestly $SL(2,C) $ isometry. We derive the perturbative manifestly $SL(2,C) $ invariant partition function $\mathcal{Z}_{top}
Aganagic   +68 more
core   +2 more sources

A general framework for the analysis and design of tubular linear permanent magnet machines [PDF]

open access: yes, 1999
A general framework for the analysis and design of a class of tubular linear permanent magnet machines is described. The open-circuit and armature reaction magnetic field distributions are established analytically in terms of a magnetic vector potential ...
Howe, D., Jewell, G.W., Wang, J.B.
core   +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

Improved transient simulation of salient-pole synchronous generators with internal and ground faults in the stator winding [PDF]

open access: yes, 2005
An improved model for simulating the transient behavior of salient-pole synchronous generators with internal and ground faults in the stator winding is established using the multi-loop circuit method.
Bi, D.Q.   +4 more
core   +1 more source

Analytical Model of Magnet Eddy-Current Volume Losses in Multi-phase PM Machines with Concentrated Winding [PDF]

open access: yes, 2012
Thanks to IEEE. The original PDF of the article can be found at: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6342330&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6342330 MHYGALE, project managed by VALEO-EEMthis ...
ASLAN, Bassel   +2 more
core   +4 more sources

Turn-to-turn fault protection technique for synchronous machines without additional voltage transformers [PDF]

open access: yes, 2017
This paper presents a novel protection technique for the detection of inter-turn faults in synchronous machines. It is based on the calculation of voltage in the stator windings from the usual phases and neutral voltage, typically available in ...
Gyftakis, Konstantinos N.   +2 more
core   +1 more source

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