Results 61 to 70 of about 3,403,673 (242)

Macroscopic Characterization of Mechanical Properties in Electric Current Treated Dry Drawn High Strength Wires [PDF]

open access: yes, 2017
The present paper investigates the use of electric current treatment in improving the drawability of plain carbon steel wire for high strength steel applications. The mechanical properties for wires of composition 0.80C-0.65Mn-0.27Si wt.% of diameters 4.
Haldar, Arunansu   +2 more
core   +1 more source

A novel high-conversion-ratio bidirectional three-phase DC–DC converter

open access: yesThe Journal of Engineering, 2019
A novel high-conversion-ratio bidirectional three-phase DC–DC converter is proposed in this paper, which features not only low switch voltage and current stresses, but also automatic voltage balancing and current sharing ability without adding extra ...
Fan Wang   +3 more
doaj   +1 more source

Control method for improvement of power quality in single interlinking converter hybrid AC‐DC microgrids

open access: yesIET Smart Grid, 2021
Hybrid AC‐DC microgrids (HMGs) are formed by interconnecting AC microgrids (MGs) and DC microgrids via AC‐DC interlinking converters (ICs). In the islanded mode, apart from power sharing in a single MG, power sharing expansion throughout HMG is desirable.
Mehdi Baharizadeh   +2 more
doaj   +1 more source

Capacitor voltage balancing control with reducing the average switching frequency in MMC

open access: yesThe Journal of Engineering, 2019
Modular multilevel converter (MMC) has a very good application prospect in the flexible high-voltage direct current (HVDC) transmission, but higher self-loss will affect the efficiency and restrict the development.
Shunliang Wang   +4 more
doaj   +1 more source

Josephson and Persistent Spin Currents in Bose-Einstein Condensates of Magnons

open access: yes, 2014
Using the Aharonov-Casher (A-C) phase, we present a microscopic theory of the Josephson and persistent spin currents in quasi-equilibrium Bose-Einstein condensates (BECs) of magnons in ferromagnetic insulators. Starting from a microscopic spin model that
Loss, Daniel   +3 more
core   +1 more source

A static current error elimination algorithm for predictive current control in PMSM for electric vehicles

open access: yesGreen Energy and Intelligent Transportation
Permanent magnet synchronous motors (PMSM), especially interior PMSM, offer several benefits, including a compact design, light weight, simple construction, high efficiency, and versatile control capabilities, which make them ideal for use in electric ...
Lin Shen   +3 more
doaj   +1 more source

Loop stability analysis of boost circuit under globally dynamic compensation strategy

open access: yesThe Journal of Engineering, 2018
The PFC Boost converter controlled by the mode of CCM has strong non-linearity due to the use of non-linear elements such as power switch and multipliers.
Xiaofan Wang   +3 more
doaj   +1 more source

Effect of spin rotation coupling on spin transport

open access: yes, 2013
We have studied the spin rotation coupling(SRC) as an ingredient to explain different spin related issues. This special kind of coupling can play the role of a Dresselhaus like coupling in certain conditions.
Basu, B., Chowdhury, Debashree
core   +1 more source

Decentralised control and fault ride-through of a multi-microgrid system

open access: yesIET Smart Grid, 2019
A multi-microgrid (MMG) system comprises of a cluster of microgrids interconnected for reliable and efficient operation in grid connected as well as islanded modes. In this study, the fault-ride-through capability of an MMG system is addressed.
Saroja Kanti Sahoo   +3 more
doaj   +1 more source

A state-of-the-art review on torque distribution strategies aimed at enhancing energy efficiency for fully electric vehicles with independently actuated drivetrains [PDF]

open access: yes, 2019
© 2019, Levrotto and Bella. All rights reserved. Electric vehicles are the future of private passenger transportation. However, there are still several technological barriers that hinder the large scale adoption of electric vehicles. In particular, their
Lenzo, Basilio, Sforza, A, Timpone, F
core  

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