Results 41 to 50 of about 43,332 (267)

Autonomous Multi‐Objective Nanoscale Characterization of Combinatorial (Al, Sc, B)N Films Reveals Composition‐Dependent Ferroelectric Regimes

open access: yesAdvanced Functional Materials, EarlyView.
Autonomous scanning probe microscopy and multi‐objective Bayesian optimization navigate a ternary (Al,Sc,B)N combinatorial library. Registered photoluminescence, electron‐probe compositional mapping, and X‐ray diffraction connect local electromechanical function to defect‐sensitive emission, composition, and crystal structure.
Yu Liu   +12 more
wiley   +1 more source

Control strategy for direct-drive wind power system under asymmetric grid voltage sag

open access: yesGong-kuang zidonghua, 2014
In view of problems of DC side overvoltage, grid-connected current distortion and grid-connected power fluctuation existed in grid-connected operation of direct-drive wind power system under asymmetric grid voltage sag, superconducting magnetic energy ...
DONG Ruihong   +3 more
doaj   +1 more source

Design of DC grid system for green intelligent hybrid bulk carrier

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveAccording to the characteristics of the complex waterways of inland rivers, a DC grid solution based on a multi-energy parallel hybrid green intelligent bulk carrier is proposed.
Li SU
doaj   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee   +21 more
wiley   +1 more source

A load forecasting method for IESs using TimeVAE and transfer learning

open access: yesZhejiang dianli
In this paper, an integrated learning approach based on time variational autoencoder (TimeVAE) and transfer learning (TL) is proposed to address the accuracy degradation in integrated energy systems (IESs) load forecasting caused by insufficient ...
CHEN Zhe   +6 more
doaj   +1 more source

Coordinated control strategy of a DC grid with energy storage system

open access: yesThe Journal of Engineering, 2019
DC grid has a prospect of application in collecting and transmitting large-scale renewable energy over long distance. However, the randomness and fluctuation of the renewable power may hamper the stable operation of DC grid. Energy storage device is able
Bo Yang   +7 more
doaj   +1 more source

Switching Power Supplies in DC Grids

open access: yes, 2021
The Smart Current Limiter is a switching DC to DC converter that provides a digitally pre-set input current control for inrush limiting and power management. Being able to digitally adjust the current level in combination with external feedback can be used for control systems like temperature control in high power DC appliances.
Duijsen, P.J. (Peter) van   +2 more
openaire  

Power Flow Controller for The Meshed DC Grids [PDF]

open access: yesAdvances in Engineering Research, 2015
With more and more environmental problems, renewable energy begins to play an increasingly large proportion. High-voltage direct current technology based on voltage source converter (VSC-HVDC) enables smooth access to renewable energy. Traditional DC grids system is generally radial connections, but In recent years, there are many parallel lines ...
Haiyang Guo, Shujnu Yao, Chiheng Gong
openaire   +1 more source

Sacrificial‐Layer‐Assisted Heat‐Affected‐Zone Suppression in Laser Patterning of PET for High‐Performance Flexible Devices

open access: yesAdvanced Functional Materials, EarlyView.
A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei   +3 more
wiley   +1 more source

Energy storage-based control of multi-terminal DC grid to eliminate the fluctuations of renewable energy

open access: yesThe Journal of Engineering, 2019
DC grid technology is an effective approach to implement large-scale renewable energy integration and accommodation. However, because of randomness and volatility of renewable power generation, the stability and efficiency of the power grid with high ...
Jiajun Nan, Wei Yao, Jinyu Wen
doaj   +1 more source

Home - About - Disclaimer - Privacy