Results 101 to 110 of about 18,465 (303)

Repetitive current control of two-level and interleaved three-phase PWM utility connected converters

, 2012
This thesis is mainly concerned with investigations into digital repetitive current controlof two-level and interleaved utility connected PWM converters.
Jamil, Mohsin
core  

Aqueous Two‐Phase Bioinks for Discrete Packing and Compartmentalization of 3D Bioprinted Cells

Advanced Healthcare Materials, EarlyView.
Aqueous two‐phase systems (ATPS) enable the formation of biomimetic interfaces crucial for tissue engineering. However, clinical translation remains limited by the challenge of precisely controlling cellular compartmentalization. Here, we developed ATPS biomaterial inks for 3D bioprinting allowing tuneable droplet formation via NaCl modulation.
Martina Marcotulli, Arianna Iacomino, Federico Serpe, Lucia Iafrate, Marco Bastioli, Giorgia Montalbano, Michele D'Orazio, Biagio Palmisano, Silvia Franco, Arianna Mencattini, Roberta Angelini, Eugenio Martinelli, Alessandro Corsi, Mara Riminucci, Giancarlo Ruocco, Chiara Scognamiglio, Andrea Barbetta, Gianluca Cidonio   +17 more
wiley   +1 more source

A new transient phenomenon caused by active current dynamics of grid-following converters during severe grid faults

Frontiers in Energy Research
Existing transient stability analysis of grid-following (GFL) converters mainly focuses on the dynamics of the phase-locked loop (PLL), while current loop dynamics are usually neglected due to their faster response than PLL. However, this article reveals
Chao Wu, Zhanqi Huang, Yong Wang, Frede Blaabjerg   +3 more
doaj   +1 more source

Grid-connected transformerless single-phase photovoltaic inverters: an evaluation on DC current injection and PV array voltage fluctuation

, 2009
A number of political, environmental and technical factors have resulted in the increase of implementation of renewable technology including grid connected photovoltaic inverters.
Morris, Claude
core  

Functional Blood‐Brain Barrier Crossing by Biomimetic M13 Phage Vectors for Targeted Neuronal Delivery

Advanced Healthcare Materials, EarlyView.
This study investigates the M13 bacteriophage as a biomimetic nanovector capable of crossing in vitro models of the blood–brain barrier. By exploiting peculiar transcellular pathways, M13 avoids lysosomal degradation and preserves its structural integrity and functionality.
Silvia Vercellino, Lucia Pappagallo, Francesca De Chirico, Luca Boselli, Hazem Ahmed, Luca Spagnoletti, Giovanni Pittaluga, Paolo Emidio Costantini, Matteo Calvaresi, Pier Paolo Pompa, Alberto Danielli, Fabio Benfenati, Valentina Castagnola   +12 more
wiley   +1 more source

A siting and sizing method for grid-forming converters based on gSCR and IMR

Zhejiang dianli
With the increasing penetration of renewable energy in power systems， the integration of conventional grid-following （GFL） converters into power systems with a high share of renewables poses a risk of small-signal instability.
SHI Ziyi, ZHANG Xiaonan, TIAN Xiaokang, ZHENG Le, ZHANG Tiance, LI Gengyin   +5 more
doaj   +1 more source

Grid-forming and Grid-Following Dual-Mode Switching Strategy Based on APS-IPSO for Grid-Forming Energy Storage [PDF]

Dianli jianshe
[Objective] Addressing the challenge that grid-forming energy storage converters，operating in a single mode，struggle to adapt to variations in grid short-circuit ratio and complex fault disturbances，this paper proposes a dual-mode switching strategy ...
CHEN Xiaoyang, LI Chenyang, XU Hengshan, MA Xin, MI Ma, SUOLANG Pingcuo
doaj   +1 more source

Comparative AC-DC Interaction Analysis for Grid-Following and Grid-Forming HVDC Converters

AC-DC interactions in modular multi-level converters (MMCs) tend to play a critical role in the small-signal stability of HVDC systems, particularly when considering grid-forming (GFM) control, as required by German grids codes for future HVDC ...
Guillaud, Xavier, Lamrani, Yahya, Zhang, Yonggang, Hachmann, Christian, Braun, Martin, Wiese, Nils   +5 more
core   +1 more source

Distributed ReStart: Non-Conventional Black-Start Resources : RTDS Based Network Energization from Grid Forming Converters: Part 1 [PDF]

, 2021
Following the past two studies submitted as part of Distributed ReStart project tasks between SPEN and Iberdrola Innovation Middle East, this report summarizes preliminary results achieved as part of the third work package of the project, undertaken in ...
Ahmed, Khaled, Avras, Andreas, Egea-Àlvarez, Agusti, Alassi, Abdulrahman, Feng, Zhiwang, Syed, Mazheruddin Hussain   +5 more
core  

Microgel‐Based 3D Bioprinting: A Convergent Strategy Integrating Material Design, Jamming Dynamics, and Biological Function

Advanced Healthcare Materials, EarlyView.
Microgel‐based 3D printed constructs represent a compelling and versatile innovation for engineering architecturally complex, dynamically remodelable, and biocompatible structures with high structural fidelity and bioactivity. By integrating material design, biofabrication, and biological function, these systems enable the development of adaptive ...
Elena Ghighină, Andreea Ioana Dinu, Jana Ghițman   +2 more
wiley   +1 more source