Results 81 to 90 of about 275,100 (301)

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini   +6 more
wiley   +1 more source

Compensation of unbalanced impedance of asymmetric wind power PMSG compensated by external circuits in series

open access: yesCES Transactions on Electrical Machines and Systems, 2017
The unbalanced impedance of the asymmetric 3-phase wind power permanent magnet synchronous generator (PMSG) compensated by external circuits in series with the 3-phase windings is investigated in this paper.
Yashan Hu, Z. Q. Zhu, M. Odavic
doaj   +1 more source

Керування машиною подвійного живлення з матричним перетворювачем в колі ротора при несиметрії напруг мережі живлення [PDF]

open access: yes, 2013
Control algorithms of doubly-fed induction generator with matrix converter under unbalanced grid voltages have been considered. Comparison of the strategies to improve the performance of DFIGs under unbalanced network conditions suggests that some ...
Дорошенко, Андрій Леонідович   +4 more
core  

The analysis of very small samples of repeated measurements II: a modified box correction [PDF]

open access: yes, 2010
There is a need for appropriate methods for the analysis of very small samples of continuous repeated measurements. A key feature of such analyses is the role played by the covariance matrix of the repeated observations.
Bellavance   +22 more
core   +2 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert   +7 more
wiley   +1 more source

Effect of Doubly Fed Induction GeneratorTidal Current Turbines on Stability of a Distribution Grid under Unbalanced Voltage Conditions

open access: yesEnergies, 2017
This paper analyses the effects of doubly fed induction generator (DFIG) tidal current turbines on a distribution grid under unbalanced voltage conditions of the grid.
Dahai Zhang   +5 more
doaj   +1 more source

Improved power controller for enhancement of voltage quality in microgrid

open access: yesThe Journal of Engineering, 2022
In microgrid, non‐linear or unbalanced loads will degrade the voltage quality at the output of the inverters, and the voltage of the load will be distorted or unbalanced.
Xuan Hoa Thi Pham
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Impact of Nonlinear and Unbalanced Loads on Neutral Conductors in Three-Phase Systems: Modelling and Simulation Analysis [PDF]

open access: yesIranian Journal of Electrical and Electronic Engineering
The rise of nonlinear and unbalanced loads in modern electrical systems poses challenges to power quality management. These loads, prevalent in electronic devices and industrial equipment, induce harmonic distortions and unbalance, adversely affecting ...
Mohd Zulhisham Mohd Radzi   +2 more
doaj  

Home - About - Disclaimer - Privacy