Results 31 to 40 of about 1,328,697 (296)

Direct adaptive current control a universal current control scheme for electrical machines

open access: yesIECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014
This paper presents a direct, adaptive and parameter-free current control scheme that is independent of the motor type and doesn't need any machine parameters. A given setpoint can be reached accurately within one switching cycle.
Liske, Andreas, Braun, Michael
openaire   +3 more sources

Dahlin-Based Fast and Robust Current Control of a PMSM in Case of Low Carrier Ratio

open access: yesIEEE Access, 2019
The low ratio of sampling frequency to electrical frequency (carrier ratio) is a challenging issue for applications, such as high-speed or high-power drives.
Stefan Walz   +3 more
doaj   +1 more source

Optimal Control of Molecular Motion Expressed Through Quantum Fluid Dynamics [PDF]

open access: yes, 2000
A quantum fluid dynamic control formulation is presented for optimally manipulating atomic and molecular systems. In quantum fluid dynamic the control quantum system is expressed in terms of the probability density and the quantum current. This choice of
A. Assion   +39 more
core   +3 more sources

Battery charging and discharging control of a hybrid energy system using microcontroller [PDF]

open access: yes, 2020
This study aims to control charging and discharging the battery for hybrid energy systems. The control system works by selecting the right energy source to supply voltage to the load. And also this control system can regulate charging and discharging the
Abu Bakar, Afarulrazi   +3 more
core   +3 more sources

Femtosecond control of electric currents in metallic ferromagnetic heterostructures [PDF]

open access: yesNature Nanotechnology, 2016
The idea to use not only the charge but also the spin of electrons in the operation of electronic devices has led to the development of spintronics, causing a revolution in how information is stored and processed. A novel advancement would be to develop ultrafast spintronics using femtosecond laser pulses.
T. J. Huisman   +10 more
openaire   +5 more sources

Direct Flux Field Oriented Control of IPM Drives with Variable DC-Link in the Field-Weakening Region [PDF]

open access: yes, 2009
This paper presents the direct flux control of an interior permanent-magnet (IPM) motor drive in the field-weakening region. The output torque is regulated by the coordinated control of the stator flux amplitude and the current component in quadrature ...
Armando, Eric Giacomo   +2 more
core   +1 more source

Steady‐state power operation region of a modular multilevel converter connecting to an AC grid

open access: yesHigh Voltage, 2021
The modular multilevel converter (MMC) has become a widely used topology for voltage source converter–based high‐voltage direct current transmission projects.
Jiecong Wang   +4 more
doaj   +1 more source

Low cogging torque design and simplified model-free predictive current control for radial-flux dual three-phase permanent magnet electric machines

open access: yesAdvances in Mechanical Engineering, 2019
This study presents two improved designs of eccentric-shaped permanent magnets and teeth-shaped stators in radial-flux dual three-phase permanent magnet electric machines to reduce cogging torque and torque ripple.
Hsing-Cheng Yu   +3 more
doaj   +1 more source

Stability analysis and nonlinear current-limiting control design for DC micro-grids with CPLs

open access: yesIET Smart Grid, 2020
In this study, a DC micro-grid consisting of multiple paralleled energy resources interfaced by both bidirectional AC/DC and DC/DC boost converters and loaded by a constant power load (CPL) is investigated. By considering the generic dq transformation of
Andrei-Constantin Braitor   +3 more
doaj   +1 more source

Electric-field control of spin-orbit torque in a magnetically doped topological insulator

open access: yes, 2015
Electric-field manipulation of magnetic order has proved of both fundamental and technological importance in spintronic devices. So far, electric-field control of ferromagnetism, magnetization and magnetic anisotropy has been explored in various magnetic
Akyol, Mustafa   +18 more
core   +1 more source

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