Results 21 to 30 of about 17,308,491 (197)
Direct adaptive current control a universal current control scheme for electrical machines
IECON 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.
Andreas Liske, Michael Braun
openaire +4 more sources
Electrically controlled pumping of spin currents in topological insulators [PDF]
Physical Review B, 2011 Pure spin currents are shown to be generated by an electrically controlled quantum pump applied at the edges of a topological insulator. The electric rather than the more conventional magnetic control offers several advantages and avoids, in particular, the necessity of delicate control of magnetization dynamics over tiny regions.
CITRO, Roberta +2 more
openaire +2 more sources
IET Smart Grid, 2023 In this article, a robust optimal distributed controller is designed for achieving average voltage regulation and current sharing in a DC microgrid. Each distributed generation unit (DGU) consists of a DC‐DC buck converter that supplies a local constant ...
Ali Amirparast, S. Kamal Hosseini Sani
doaj +1 more source
, 2014 Software SCADA (Supervisory Control and Data Acquisition) continuará a ser uma prioridade e um dos eixos de crescimento da Schneider Electric. [...] A Schneider Electric, especialista global em gestão de energia, irá discutir a sua estratégia SCADA para ...
Electric, Schneider, Schneider Electric
core +2 more sources
Femtosecond control of electric currents in metallic ferromagnetic heterostructures [PDF]
Nature 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 +4 more sources
Electric Control of Spin Currents and Spin-Wave Logic [PDF]
Physical Review Letters, 2011 Spin waves in insulating magnets are ideal carriers for spin currents with low energy dissipation. An electric field can modify the dispersion of spin waves, by directly affecting, via spin-orbit coupling, the electrons that mediate the interaction between magnetic ions.
Liu, Tianyu, Vignale, G.
openaire +3 more sources
Dahlin-Based Fast and Robust Current Control of a PMSM in Case of Low Carrier Ratio
IEEE 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
Steady‐state power operation region of a modular multilevel converter connecting to an AC grid
High 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
Advances 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
IET 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