Results 61 to 70 of about 22,404 (259)

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

Advanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur, George Maddison, Jaianth Vijayakumar, Paul Tafforeau, Kathy Christofidou, Peter David Lee, PJ Tan, Chu Lun Alex Leung   +7 more
wiley   +1 more source

LCL Filter Design with EMI Noise Consideration for Grid-Connected Inverter

Energies, 2018
The grid-injected current total harmonics distortion (THD) and electromagnetic interference (EMI) noise must be considered in a transformer-less grid-connected inverter for a more electric aircraft (MEA) system.
Yitao Liu, Ching-Ming Lai
doaj   +1 more source

Performance Analysis of Single Loop Current Controller at Grid Side Inverter Regarding LCL Filter Parameters and System Delay

Advances in Electrical and Computer Engineering, 2022
In the grid-connected systems, LCL filters are widely used for eliminating the generated switching current ripples due to better attenuation in comparison with L or LC filter.
STOJANOVIC, L., BAKIC, F., MILIC, A.
doaj   +1 more source

PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags [PDF]

, 2018
This paper is a postprint of a paper submitted to and accepted for publication in IET Power Electronics and is subject to Institution of Engineering and Technology Copyright.
Camacho Santiago, Antonio, Castilla Fernández, Miguel, García de Vicuña Muñoz de la Nava, José Luis, Garnica López, Miguel Andrés, Miret Tomàs, Jaume   +4 more
core   +2 more sources

Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks

Advanced Materials, EarlyView.
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li, Aiden Ross, Vladimir A. Stoica, Sujit Das, Sankalpa Hazra, Huaiyu (Hugo) Wang, Hari Padma, Matthias C. Hoffmann, Patrick Kramer, Sanghoon Song, Silke Nelson, Takahiro Sato, Diling Zhu, Ramamoorthy Ramesh, Lane W. Martin, Yue Cao, John W. Freeland, Aaron M. Lindenberg, Haidan Wen, Long‐Qing Chen, Venkatraman Gopalan   +20 more
wiley   +1 more source

Dynamics estimation and generalized tuning of stationary frame current controller for grid-tied power converters [PDF]

, 2016
The integration of AC-DC power converters to manage the connection of generation to the grid has increased exponentially over the last years. PV or wind generation plants are one of the main applications showing this trend.
Luna Alloza, Álvaro, Mir Cantarellas, Antonio, Remón Rodríguez, Daniel, Rodríguez Cortés, Pedro, Zhang, Weiyi   +4 more
core   +2 more sources

Research on LCL filter considering grid impedance

IOP Conference Series: Earth and Environmental Science, 2019
Abstract Due to the large amount of access to distributed energy, the grid usually exhibits weak grid characteristics, which puts higher demands on the inverter. The use of LCL filters in photovoltaic grid-connected systems is beneficial to suppress high-frequency switching harmonic currents from entering the grid.
L F Wu, C Z Zhang
openaire   +1 more source

LCL-resonance damping strategies for grid-connected inverters with LCL filters: a comprehensive review [PDF]

Journal of Modern Power Systems and Clean Energy, 2017
Abstract Grid-connected LCL-filtered inverters are commonly used for distributed power generators. The LCL resonance should be treated properly. Recently, many strategies have been used to damp the resonance, but the relationships between different damping strategies have not been thoroughly investigated.
Jinming XU, Shaojun XIE
openaire   +2 more sources

Ultrafast (1‐5 sec) Lamination of Perovskite Solar Cells With Self‐Encapsulation Using Rapid Joule Heating

Advanced Materials Technologies, EarlyView.
Halide perovskite solar cells are fabricated with self‐encapsulation by lamination between two glass substrates using rapid Joule heating, yielding a 99% reduction in lamination time compared to previous studies. An 18% efficient cell is laminated in 5 s, demonstrating the potential for scalable manufacturing. ABSTRACT Perovskite solar cells (PSCs) are
Oluka Okia, Md Aslam Uddin, Tianhan Gao, Zhihang Zhang, Vaishnav Madhava Das, Clare L. Lanaghan, Alexandra C. Hurd, Wei Lu, David P. Fenning, Neil P. Dasgupta   +9 more
wiley   +1 more source

A Generalized Analytical Tuning Approach for Model Predictive Controlled Grid-Tied Converters Under Wide Range of Grid Inductance Variation

IEEE Access, 2022
In medium-high power applications, the LCL is the preferred filter topology to attain efficient power conversion. The filter provides a high damping attenuation of -60 dB/decade above the resonance frequency at the cost of a higher order plant, complex ...
Waqar A. Khan, Armin Ebrahimian, S. Iman Hosseini S., Mostafa Abarzadeh, Nathan Weise, Kamal Al-Haddad   +5 more
doaj   +1 more source