Results 81 to 90 of about 27,199 (303)
Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?
Advanced Functional Materials, EarlyView.This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee +7 more
wiley +1 more source
Performance of the battery energy storage systems based on cascaded H-bridge multilevel converter
The Journal of Engineering, 2019 The battery energy storage system (BESS) based on the cascaded multilevel converter, that consists of cascaded H-bridge converter, is one of the most promising and interesting options, which is taken to compensate the instability of electric power grid ...
Abuzaid Saeed Gadalla +2 more
doaj +1 more source
Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements [PDF]
, 2015 This project is funded by RTE, Paris, FrancePeer ...
Jovcic, Dragan +3 more
core +1 more source
Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries
Advanced Functional Materials, EarlyView.Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu +4 more
wiley +1 more source
Unidimensional modulation technique for cascaded multilevel converters [PDF]
, 2009 This paper presents a simple and low computational cost modulation technique for multilevel cascaded H-bridge converters. The technique is based on geometrical considerations considering an unidimensional control region to determine the switching ...
Carrasco Solís, Juan Manuel +6 more
core +1 more source
Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]
, 2018 Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems.
Adam, G.P. +4 more
core +1 more source
Advanced Functional Materials, EarlyView.A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam +8 more
wiley +1 more source
A Power Electronic Transformer with Low Voltage Ripple in DC Bus
Kongzhi Yu Xinxi Jishu, 2017 In high-voltage distribution network, cascaded H-bridge converter is often adopted in PET(power electronic transformer) to reach the voltage level of high-voltage side. As the DC bus of cascaded H-bridge converter has to be separated, the second harmonic
WANG You, ZHENG Zedong
doaj
Analysis of Multicarrier PWM techniques for Photovoltaic fed Cascaded H-Bridge Multilevel Inverter [PDF]
Journal of Electrical and Electronics Engineering, 2017 Recently multilevel inverter technology emerging as an important alternative in the field of high power, medium voltage energy control. The various topologies for multilevel inverters such as diode-clamped, flying capacitor and cascaded H-bridge have ...
VENKATRAMAN Thiyagarajan +1 more
doaj
A Transformerless Medium Voltage Multiphase Motor Drive System
Energies, 2016 A multiphase motor has several major advantages, such as high reliability, fault tolerance, and high power density. It is a critical issue to develop a reliable and efficient multiphase motor drive system.
Dan Wang +4 more
doaj +1 more source