Results 81 to 90 of about 1,336,559 (340)

Optimal Control Design for Multiterminal HVDC [PDF]

, 2013
This thesis proposes an optimal-control based design for distributed frequency control in multi-terminal high voltage direct current (MTDC) systems.
de Courreges d'Ustou, Benoit
core  

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

A Fast Calculation Method of 3D Temperature Field of Oil‐Immersed Transformer Based on Point Cloud U‐Net++ Neural Network

IET Electric Power Applications
To address the challenges in real‐time 3D temperature field analysis for intelligent power systems, we propose a fast calculation method based on point cloud U‐net++ neural network.
Rongyun Fu, Yunpeng Liu, Kexin Liu, Gang Liu, Liwei Jiang, Haoyu Liu, Shuguo Gao   +6 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Analysis of vibration evolution and propagation characteristics due to mechanical degradation in transformer iron cores

High Voltage
This study investigates vibration changes due to transformer core deterioration by monitoring core vibration, compression force and shell wall vibrations simultaneously.
Yunpeng Liu, Guanyu Chen, Fuseng Xu, Tao Zhao, Hongliang Liu, Lu Sun   +5 more
doaj   +1 more source

Experimental Study on Pressure-Deformation-Contact Resistance Characteristics of Converter Transformer Valve Side Casing Louver Contacts

IEEE Access
The performance degradation of oil-immersed louver contacts are the main reason for the DC resistance exceeding the standard on the valve side of UHV converter transformers.
Shihong Hu, Zhicheng Huang, Jiahui Chen, Chi Yuan, Bozhang Feng, Tao Zhao, Yunpeng Liu   +6 more
doaj   +1 more source

A Method for Diagnosing Mechanical Faults of on-Load Tap Changer Based on Ensemble Empirical Mode Decomposition, Volterra Model and Decision Acyclic Graph Support Vector Machine

IEEE Access, 2019
A method combined ensemble empirical mode decomposition, Volterra model and decision acyclic graph support vector machine was proposed to improve adaptability, feature resolution, and identification accuracy when diagnosing mechanical faults in an on ...
Yuqin Xu, Cong Zhou, Jianghai Geng, Shuguo Gao, Ping Wang   +4 more
doaj   +1 more source

Seismic reliability of electric power transmission systems [PDF]

, 1995
Electric power transmission systems are networks of nodes (stations) connected by lines (power transmission lines), dedicated to the production, transformation and distribution of electric power to users. The network contains many seismically fragile elements, the stations being composed of slender steel-ceramic members, and is a complex system because
VANZI, Ivo, GIANNINI R, PINTO P. E.
openaire   +3 more sources

Overview study of Space Power Technologies for the advanced energetics program [PDF]

Space power technologies are reviewed to determine the state-of-the-art and to identify advanced or novel concepts which promise large increases in performance. The potential for incresed performance is judged relative to benchmarks based on technologies
Gross, S., Millner, A., Neugebauer, M., Phillips, W., Powell, J., Schmidt, E., Taussig, R., Wolf, M., Woodcock, G.   +8 more
core   +1 more source