Results 1 to 10 of about 344,639 (341)

On the Weakening of the Chromospheric Magnetic Field in Active Regions [PDF]

open access: bronzeThe Astrophysical Journal, 2008
accepted for publication in ...
K. Nagaraju   +2 more
core   +4 more sources

Field weakening control of a PM vehicle drive [PDF]

open access: goldThe Journal of Engineering, 2019
This paper develops a new field weakening method for an integrated permanent magnet synchronous machine vehicle drive. This method adopts both the DC-link and the rotor speed as a feedback signals to generate the demagnetising current reference.
Yaman Zbede, Judith Apsley
doaj   +4 more sources

Weakening connections in heterogeneous mean-field models [PDF]

open access: greenJournal of Statistical Mechanics: Theory and Experiment, 2021
Abstract Two versions of the susceptible-infected-susceptible epidemic model, which have different transmission rules, are analysed. Both models are considered on a weighted network to simulate a mitigation in the connection between the individuals.
Carlos Matias Dias, M. O. Hase
openalex   +5 more sources

Comparison of Feedback Field-Weakening Techniques for Synchronous Machines with Permanent Magnets [PDF]

open access: goldVehicles, 2023
In recent decades the market share of electrical cars has increased significantly, which has paved the way for the development of automotive electronics.
Anton Dianov
doaj   +2 more sources

Field-weakening performance of interior permanent magnet motors [PDF]

open access: yesConference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129), 2002
This paper compares the field-weakening performance under rated and overload conditions of synchronous reluctance and interior permanent-magnet motors against that of a baseline 2.2-kW induction machine. Four prototype rotors based on axially laminated and multiple-barrier designs were built and tested in the same induction machine stator.
Soong, W., Ertugrul, N.
openaire   +4 more sources

Iron Loss Prediction Using Modified IEM-Formula during the Field Weakening for Permanent Magnet Synchronous Machines [PDF]

open access: goldMachines, 2017
During field weakening operation time (FWOT), the total iron loss rises and affects the accuracy of loss prediction and efficiency, especially if a large range of FWOT exists due to a large voltage drop that was rooted from the resistance of the used ...
Pedram Asef   +2 more
doaj   +2 more sources

Experimental research into indoor static geomagnetic field weakening phenomenon

open access: greenElectrical engineering & Electromechanics, 2013
A technique and results of experimental studies of geomagnetic field (GMF) induction in 195 different rooms in educational institutions, residential buildings, shopping malls and subway are presented.
V.Yu. Rozov   +2 more
doaj   +3 more sources

A Case Study: An Approach to Decrease Voltage Distortion and Enhance Field Weakening Capability in BMW i3 Traction Motor

open access: goldIEEE Access
The transformation of modern vehicles to electric mobility is increasing day by day. This potential allows detailed studies of alternative motor topologies. Synchronous reluctance motor topologies are the main candidates among these alternatives.
Nezih Gokhan Ozcelik   +2 more
doaj   +2 more sources

Field-Weakening Nonlinear Control of a Separately Excited DC Motor [PDF]

open access: hybridFirst International Symposium on Control, Communications and Signal Processing, 2004., 2007
This paper investigates the design and implementation of nonlinear control schemes for a separately excited DC motor operating in the field-weakening region. A feedback linearization controller, a Corless-Leitman-type controller, and two nonlinear controllers are designed and implemented for a DC motor system. The stability of the closed-loop system is
Mohamed Zribi, A. Al-Zamel
openalex   +3 more sources

Speed Regulated Continuous DTC Induction Motor Drive in Field Weakening

open access: goldAdvances in Electrical and Computer Engineering, 2011
The paper describes sensorless speed controlled continuous Direct Torque Control (DTC) Induction Motor (IM) drive in the field weakening regime. Drive comprises an inner torque loop and an outer speed loop.
MATIC, P., VUKOSAVIC, S. N.
doaj   +2 more sources

Home - About - Disclaimer - Privacy