Results 81 to 90 of about 22,065 (311)

When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals

Advanced Optical Materials, EarlyView.
A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke, Yvonne Tomm, Xinyun Liu, Galina Gurieva, Daniel M. Többens, Pardis Adams, Michel Calame, Ryan W. Crisp, Jessica Boland, Seán Kavanagh, Susan Schorr, Mirjana Dimitrievska   +11 more
wiley   +1 more source

Damping Characteristic Analysis of LCL Inverter with Embedded Energy Storage

Energies
This paper investigates the system architecture and circuit topology of grid-connected inverters with embedded energy storage (EES), encompassing their modulation strategies and control methodologies.
Jingbo Zhao, Yongyong Jia, Guojiang Zhang, Haiyun An, Tianhui Zhao   +4 more
doaj   +1 more source

Stability analysis of distributed generation grid‐connected inverter

The Journal of Engineering, 2018
With the distributed new energy power generation increased, the power grid system becomes more and more complex, leading to its stability more likely to be affected. Among them, the resonance caused by impedance mismatch is particularly critical. The small‐signal model of phase‐locked loop and current control in the inverter control system have been ...
Xuemei Zheng, Zhuang Liu, Chao Wang, Yidan Liu, Yong Feng   +4 more
openaire   +2 more sources

Control of transient power during unintentional islanding of microgrids

, 2014
In inverter-based microgrids, the paralleled inverters need to work in grid-connected mode and stand-alone mode and to transfer seamlessly between the two modes. In grid-connected mode, the inverters control the amount of power injected into the grid. In
Sharkh, S.M., Abusara, Mohammad, Issa, Walid, Sharkh, SM, Sharkh, Suleiman, Issa, W, Abusara, M   +6 more
core   +1 more source

Machine Learning Enables Inverse Design of Optically Driven Microscopic Metavehicles

Advanced Optical Materials, EarlyView.
Machine‐learning‐based inverse design is used optimize “metavehicles” — flat microparticles based on metagratings that generate a strong lateral optical force from normally incident light. The optimized design exhibits a force efficiency of ∼88% and a measured propulsion speed in water much higher than previously reported, demonstrating that inverse ...
Vasilii Mylnikov, Mahdi Shanei, Mikael Käll   +2 more
wiley   +1 more source

A Simplified Design Strategy for Multi-Resonant Current Control of a Grid-Connected Voltage Source Inverter with an LCL Filter

Energies, 2018
A distorted grid voltage or nonlinear behavior in the current control loop can cause low frequency current harmonics in a grid-connected voltage source inverter (VSI).
Matthias Schiesser, Sébastien Wasterlain, Mario Marchesoni, Mauro Carpita   +3 more
doaj   +1 more source

The Control of Grid-Connected Inverters in Microgrids [PDF]

, 2016
Microgrids based on renewable power generation are under increasing develop-ment all over the world. Grid-connected inverters form an indispensable interface between the microgrids and power grid, to deliver the renewable energy into the grid by controlling the injected current.
openaire   +1 more source

Inversor trifásico de dois estágios modificado aplicado no processamento da energia solar fotovoltaica em sistemas conectados à rede elétrica [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2009.Este trabalho apresenta um sistema fotovoltaico trifásico conectado à rede elétrica comercial.
Casaro, Marcio Mendes
core  

Auto‐Routing Fluidic Printed Circuit Boards

Advanced Robotics Research, EarlyView.
This work introduces (STREAM) software tool for routing efficiently advanced macrofluidics, an open‐source software tool for automating the design of 3D‐printable fluidic circuit boards. STREAM streamlines tube routing and layout, enabling the rapid fabrication of fluidic networks for soft robotics, lab‐on‐a‐chip devices, microfluidics, and biohybrid ...
Savita V. Kendre, Lehong Wang, Haotian Liu, Markus P. Nemitz   +3 more
wiley   +1 more source

Analysis of resonance and harmonic amplification for grid‐connected inverters

IET Generation, Transmission & Distribution, 2019
The stability and control performances of grid‐connected inverters can be significantly influenced due to the uncertain grid impedance and large grid voltage background harmonics.
Bao Xie, Lin Zhou, Mingxuan Mao
doaj   +1 more source