Results 21 to 30 of about 334,498 (301)

A novel two-layer winding topology for sub-harmonic synchronous machines

open access: yes, 2022
With optimized design and modern brushless operation, wound rotor synchronous machines are resurrecting as a strong contender in many applications presently dominated by permanent magnet machines.
Rafin, SM Sajjad Hossain   +3 more
core   +1 more source

Harmonization in laboratory medicine: Blowin’ in the wind

open access: yesClinical Chemistry and Laboratory Medicine (CCLM), 2018
n ...
Plebani, Mario   +2 more
openaire   +3 more sources

New 5-Phase Concentrated Winding Machine with Bi-Harmonic Rotor for Automotive Application [PDF]

open access: yes, 2014
For a power range from 10 to 30 kW, 5-phase machines are well adapted to low-voltage (48V) supply thanks to their reduced current per phase. For three-phase machines but with higher voltages (>120V), machines with a number of slots per pole and per phase
B. Aslan   +3 more
core   +1 more source

Fault-Tolerant Operation of Wound Field Synchronous Machine Using Coil Switching

open access: yesIEEE Access, 2019
This paper proposes a fault tolerant operation of a wound field synchronous machine (WFSM) under the loss of excitation (LOE) fault in the rotor field winding. A two-mode field excitation scheme is presented, where the rotor of the WFSM was modified, and
Muhammad Ayub   +3 more
doaj   +1 more source

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.
LEGRANGER, Jerome   +2 more
core   +1 more source

AC Distributed Winding with Low Higher Spatial Harmonics Content in Mmf Distribution

open access: yesEnergies, 2023
This paper presents a new winding with a low higher spatial harmonics content. This winding enables the elimination of the fifth harmonic, as the most significant, in three-phase winding and the third harmonic in two-phase symmetrical winding.
Jan Staszak
doaj   +1 more source

Different Virtual Stator Winding Configurations of Open-End Winding Five-Phase PM Machines for Wide Speed Range without Flux Weakening Operation [PDF]

open access: yes, 2013
This paper presents a specific control strategy of double-ended inverter system for wide-speed range of open-winding five phase PM machines. Different virtual winding configurations (star, pentagon, pentacle and bipolar) can be obtained by choosing the ...
NGUYEN, Ngac Ky   +12 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 ...
Bassel Aslan   +5 more
core   +1 more source

Novel Self-Excited Brush-Less Wound Field Vernier Machine Topology

open access: yesIEEE Access, 2022
To realize the brush-less operation for wound field vernier machines (WFVMs), a novel self-excited topology is proposed in this paper which involves a four-pole main armature winding and a two-pole excitation winding connected in series using an ...
Syed Sabir Hussain Bukhari   +6 more
doaj   +1 more source

General modeling of the windings for multi-phase ac machines [PDF]

open access: yes, 2010
This paper, which deals with the winding modeling of ac multi-phase machines with a regular distribution of the stator slots, details an original matrix modeling of the stator winding.
CHARPENTIER, Jean-Frederic   +8 more
core   +1 more source

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