Results 131 to 140 of about 13,724 (297)

Arm-Current-Limiting Control for Modular Multilevel Converters With Combined AC and DC Grid-Forming Control

IEEE Open Journal of Power Electronics
Grid faults pose a particular challenge to grid-forming (GFM) converters: The voltage-source behavior of a GFM converter requires current-limiting control to protect the semiconductors.
Malte Eggers, Tayssir Hassan, Sibylle Dieckerhoff   +2 more
doaj   +1 more source

Asymmetric Impedance Model for Grid-Forming Converters With Droop Control

IEEE Transactions on Power Electronics
Universidade de Vigo ...
Diego Pérez-Estévez, Diego Ríos-Castro, Pablo Marino Fernández-Abraldes, Vitor Monteiro, J. G. Pinto, João L. Afonso, Jesús Doval-Gandoy   +6 more
openaire   +3 more sources

Direct Synthesis of High‐Valence Protein@UiO‐66 Composites: Linking Crystallization Pathways to Protein Encapsulation

Advanced Materials, EarlyView.
This work reports a direct, biocompatible method to synthesize UiO‐66, enabling one‐step encapsulation of proteins without compromising crystallinity or activity. Using advanced in situ and ex situ techniques, the study reveals that proteins integrate concurrently with MOF growth, forming crystalline protein@UiO‐66 nanoparticles, and provide insight ...
Jesús Cases Díaz, Jana Glatz, Elisa Merced Olivas, Ramon Pons, Joseph P. Patterson, Mónica Giménez‐Marqués   +5 more
wiley   +1 more source

Stability Analysis of Virtual Power Plant with Grid Forming Converters

2024 International Conference on Smart Energy Systems and Technologies (SEST)
A virtual power plant is a system containing multiple distributed generators aggregated and flexibly coordinated to act as a single power source. This study investigates the active power, reactive power, frequency, and voltage support provided by a virtual power plant interconnected with the grid.
Tozak, Macit, Taskin, Sezai, Sengor, Ibrahim, Hayes, Barry P.   +3 more
openaire   +2 more sources

Interactions and stability analysis of grid-forming and grid-following converters in close proximity : an impedance-based approach [PDF]

This paper addresses the stability challenges of integrating multiple converters into AC networks, focusing on potential instabilities from interactions between converter control loops and network components.
Xu, Lie, Chen, Dong, Chen, Yin, Gebremedhin, Tesfu   +3 more
core  

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

SCR Independent Polytopic Lyapunov Control for MMC HVDC Networks

IEEE Access
The growing High-Voltage Direct Current transmission networks require modern control strategies in converter stations to ensure reliable operation and uninterrupted energy supply, particularly under unstable and low Short-Circuit ratio conditions ...
Rohan Kamat Tarcar, Marjan Popov, Aleksandra Lekic   +2 more
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Bubble Formation Control: Fabrication of Centimeter‐Sized Tissue‐Like Constructs by Catalase‐Coated Oxygen‐Releasing Hydrogel

Advanced Materials, EarlyView.
Oxygen‐releasing hydrogels are widely used to support cell survival in 3D cultures and to promote wound healing. However, incorporating catalase to convert H2O2 into O2 often generates additional oxygen bubbles, leading to material instability which rarely addressed.
Sukulya Bunuasunthon, Isabel F. Amaral, Ana P. Pêgo, Michiya Matsusaki   +3 more
wiley   +1 more source

Estimating Region of Attraction of Power Systems Integrated with Voltage Source Converters: A Review

CSEE Journal of Power and Energy Systems
The integration of renewable energy sources (RESs) via voltage source converters (VSCs) has introduced considerable risk to the transient stability of power systems, necessitating accurate transient stability assessment through estimating the region of ...
Yang Liu, Jiemin Liao, Q. H. Wu, Zhigang Li, Kaishun Xiahou   +4 more
doaj   +1 more source