Results 111 to 120 of about 13,412,516 (344)

Reviewing Control Paradigms and Emerging Trends of Grid-Forming Inverters—A Comparative Study

Energies
Grid-forming inverters (GFMs) have emerged as crucial components in modern power systems, facilitating the integration of renewable energy sources and enhancing grid stability. The significance of GFMs lies in their ability to autonomously establish grid
Khaliqur Rahman, J. Hashimoto, Dai Orihara, T. Ustun, Kenji Otani, Hiroshi Kikusato, Yasuhiro Kodama   +6 more
semanticscholar   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel, Lara Kuhr, Khemais Barienti, Sebastian Herbst, Florian Nürnberger, Hans Jürgen Maier, Marc C. Wurz   +6 more
wiley   +1 more source

Grid-Forming Fuel Cell System for an Islanded AC Grid

Eletrônica de Potência
This paper proposes a two-stage converter that can black start an isolated AC Microgrid with a Fuel Cell (FC) as the primary energy source. The first stage is connected to the FC and employs a Three-Leg Interleaved Boost DC/DC Converter (IBC), while the
João M. T. do Amaral, Janito S. Ramos, Carolina C. M. de Souza, Giulia J. da Silva, Emanuel L. van Emmerik, Robson F. S. Dias   +5 more
doaj   +1 more source

Universal Dual-Port Grid-Forming Control: Bridging the Gap Between Grid-Forming and Grid-Following Control

IEEE Transactions on Power Systems
We analyze a dual-port grid-forming (GFM) control for power systems containing ac and dc transmission, converter-interfaced generation and energy storage, and legacy generation. To operate such a system and provide standard services, state-of-the-art control architectures i) require assigning grid-following (GFL) and GFM controls to different ...
Irina Subotić, Dominic Groß
openaire   +2 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

A novel fault analysis method considering control states for MMC grid-forming system with renewable energy generation

International Journal of Electrical Power & Energy Systems
This paper analyzes the fault equivalent models of grid-following and grid-forming converters under various fault conditions. A novel fault calculation method for MMC-HVDC grid-forming systems integrated with 100% renewable energy generation is proposed.
Bohao Zhou, Jiawei He, Bin Li, Ye Li, Yan Li, Runbin Cao   +5 more
doaj   +1 more source

Toward Low‐Consumable Anodes: Process Simulation and Prospective Life Cycle Assessment of NiFe2O4‐NiO‐Ni‐Cu vs. Prebaked Anodes for Aluminum Production with use of Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz, Ulziikhuu Otgonbayar, Alexander Adamczyk, Farhan Hossain, Daniel Vogt, Johan Berg Pettersen, Alexandros Charitos   +6 more
wiley   +1 more source

Coordinated Control of Grid-Forming Wind Turbines and Grid-Forming Energy Storage Systems for Power System Restoration

IEEE Transactions on Sustainable Energy
Grid-forming wind turbines (GFM-WTs) provide a promising solution for the restoration of wind-integrated power systems owing to their fast restart and grid support capabilities. However, individual GFM-WTs rely on external GFM sources for self-start, and their GFM support capability may be hindered by wind power shortages, potentially causing ...
Yuping Zhang, Yunyun Xie, Sheng Cai, Qiuwei Wu, Haobin Zhu, Zhengrong Xiang   +5 more
openaire   +2 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Robustness Enhanced control for Grid-Forming PMSG wind farm

International Journal of Electrical Power & Energy Systems
This paper studies the stability and control of the wind farm utilizing the permanent magnet synchronous generator (PMSG) with grid-forming control based on virtual synchronous generator (VSG) technology. It considers the uncertainties affecting the wind
Yun Wang, Chaoyang Long, Feilong Xie, Mingkun Liang, Qiuwei Wu   +4 more
doaj   +1 more source