Results 61 to 70 of about 24,183 (312)

A flexible flux adjustable variable flux leakage starter‐generator for helicopters

open access: yesIET Electric Power Applications
A variable flux leakage starter‐generator structure designed for helicopters is proposed. The research focuses on investigating the current distribution mechanism of the d‐q axis to determine the feasibility of incorporating variable flux leakage (FL) in
Hainiu Chen   +4 more
doaj   +1 more source

Optimal Design of PM Synchronous Generator for Aerial Industries Power Supply Using Cuckoo Algorithm [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2014
The Generators used in aerial industries should have the characteristics such as high efficiency, power density and reliability, low weight and volume.
A. Nikbakhsh   +2 more
doaj  

E-Core and C-Core Switched Flux Permanent Magnet Generators for Wind Power Generation

open access: yesIEEE Access, 2023
This paper introduces a 6-phase switched flux permanent magnet (SFPM) generator with high permanent magnet (PM) utilization, designed for a 2 kW wind power generation application.
Pattasad Seangwong   +3 more
doaj   +1 more source

Génératrice à aimants permanents à flux axial à grand diamètre avec entrefer immergé [PDF]

open access: yes, 2013
Cette étude propose une méthode de modélisation et de conception adaptée aux machines à flux axial et à Double Stator (poly-entrefer) destinée à être intégrée comme génératrice pour une hydrolienne RIM-DRIVEN de grande puissance.
BENBOUZID, Mohamed   +3 more
core   +3 more sources

Cogging torque reduction for permanent magnet structure of radial flux permanent magnet generator

open access: yesIOP Conference Series: Earth and Environmental Science, 2023
Abstract Recently, Permanent Magnet Generator has been widely used due to its ability of having simple structure yet high efficiency. A radial flux permanent magnet generator’s (RFPM) cogging torque leads to the decrease in output power. Generally, cogging torque is affected from the size of permanent magnet.
Nur Afiqah Mostaman   +2 more
openaire   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

Investigation of Permanent Magnet Demagnetization in Synchronous Machines during Multiple Short-Circuit Fault Conditions

open access: yesEnergies, 2017
Faults in electrical machines can vary in severity and affect different parts of the machine. This study focuses on various kinds of short-circuits on the terminal side of a generic 20 kW surface mounted permanent magnet synchronous generator and how ...
Stefan Sjökvist, Sandra Eriksson
doaj   +1 more source

Performance Analysis of Permanent Magnet Vernier Generator under Mechanical Faults [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2018
In this paper no-load and full-load performance of Permanent Magnet Vernier Generators (PMVGs) is investigated in fully-aligned condition and under different types of mechanical faults.
Zahra Nasiri-Gheidari   +2 more
doaj   +1 more source

Multipolar SPM machines for direct drive application: a comprehensive design approach [PDF]

open access: yes, 2012
A closed-form, per-unit formulation is proposed, for the design of surface mounted permanent magnet motors with high number of poles. The model evaluates the shear stress, the power factor and the specific Joule loss as the indicators of the machine ...
Boazzo, Barbara   +2 more
core   +1 more source

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy