Results 121 to 130 of about 1,941,585 (293)

A weighted damping strategy for improving the adaptability of converter to weak grid

Diance yu yibiao
Active damping can significantly improve the adaptability of converter to weak grid, however, when the PCC (point of common coupling) voltage harmonics are used for active damping control, the suppression ability of the system on the background harmonic ...
XU Jia, YANG Shude, ZHANG Xinwen
doaj   +1 more source

Emergent Spin Supersolids in Frustrated Quantum Materials

Advanced Materials, EarlyView.
This review highlights developments in the study of spin super‐solids in frustrated quantum materials. Advanced experimental characterizations and computational studies enable a comprehensive understanding of the driving mechanisms of spin super‐solidity in various layered transition‐metal compounds, bridging materials, experiments, and theory aspects.
Yixuan Huang, Seiji Yunoki, Sadamichi Maekawa   +2 more
wiley   +1 more source

DFIG-based Windfarm Starting Connected to a Weak Power Grid

, 2019
Starting and energization of windfarms has always been done under strong grid conditions. With the increase in blackouts and desire to run parts of the system in island mode, it is necessary to examine the starting of windfarms under different system ...
Sanjari, MJ, Maina, DK, Nair, N-KC
core   +1 more source

Impedance-Based Criterion Design for Grid-Following/Grid-Forming Switching Control of Wind Generation System

Energies
As wind farms connect with power grids via long-distance transmission lines and multiple transformers, the resulting networks exhibit inherently weak and fluctuating grid strength—subject to dynamic variations from external disturbances like generation ...
Sijia Huang, Zhenbin Zhang, Zhihao Chen, Huimin Huang, Zhen Li   +4 more
doaj   +1 more source

Weak In‐Plane Ferromagnetism and Electronic Nematicity in the Distorted Triple‐Q Magnetic Phase of Co1/3TaS2

Advanced Materials, EarlyView.
Co1/3TaS2${\rm Co}_{1/3}{\rm TaS}_{2}$ hosts a triple‐Q noncoplanar antiferromagnetic state with coexisting Z3${\rm Z}_3$ electronic nematicity. We report rotational hysteresis observed in both magnetoresistance and magnetic torque, revealing strongly pinned in‐plane weak ferromagnetic moments in the triple‐Q phase and the magnetism‐driven nature of ...
Joonyoung Choi, Woonghee Cho, Pyeongjae Park, Woun Kang, Je‐Geun Park, Younjung Jo   +5 more
wiley   +1 more source

Self-adaptive Grid Resource Monitoring and discovery [PDF]

The Grid provides a novel platform where the scientific and engineering communities can share data and computation across multiple administrative domains.
Lim Choi Keung, Hélène Niuklan
core  

Unveiling Exsolution‐Induced Giant Electronic and Magnetic Property Changes in Non‐Stoichiometric Titanate Perovskite Thin Films

Advanced Materials, EarlyView.
A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim, June Ho Lee, Yaolong Xing, Dongchang Kim, Haeseong Jeong, Mongjun Jeong, Manuel Valvidares, Stuart S. P. Parkin, Sang Ho Oh, Donghwa Lee, Hyojin Yoon, Hyeon Han   +11 more
wiley   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Studies on the Grid-Connected Characteristics about Large-Scale Photovoltaic Power Station in Weak Grid Systems

, 2011
This paper made some researches of modeling on the systems of the large-scale photovoltaic（PV） power station, and established the PV model, the rectifier and inverter circuits and so on.
Hui Jiang, Zhi Wei Li, Xin Zheng
core   +1 more source

A Review of Analysis Methods and Key Technologies for Grid Connection Stability of Offshore Wind Power in Weak Grids

南方能源建设
[Objective] In the context of the current global energy transition, large-scale access to offshore wind power has weakened grid connection strength, triggering a series of grid stability challenges.
Wei WU, Yufei LIU, Yanping SUN, Yongjun ZHANG   +3 more
doaj   +1 more source