Results 61 to 70 of about 337,092 (241)

A Comparative Study of Grid-Following and Grid-Forming Control Schemes in Power Electronic-Based Power Systems

Power Electronics and Drives, 2023
Along with de-carbonisation, the penetration of power electronic converters has increased, and the power system has become a power electronic-based power system. In such a situation, the stability of the power system faces great challenges.
Gao Xian, Zhou Dao, Anvari-Moghaddam Amjad, Blaabjerg Frede   +3 more
doaj   +1 more source

Risk-Averse Model Predictive Operation Control of Islanded Microgrids

, 2019
In this paper we present a risk-averse model predictive control (MPC) scheme for the operation of islanded microgrids with very high share of renewable energy sources.
Hans, Christian A., Patrinos, Panagiotis, Raisch, Jörg, Reincke-Collon, Carsten, Sopasakis, Pantelis   +4 more
core   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

Protostellar Outflow Evolution in Turbulent Environments

, 2008
The link between turbulence in star formatting environments and protostellar jets remains controversial. To explore issues of turbulence and fossil cavities driven by young stellar outflows we present a series of numerical simulations tracking the ...
Adam Frank, Alice C. Quillen, Andrew J. Cunningham, Bally, Bally, Bally, Bally, Banerjee, Blitz, Cabrit, Carroll, Cunningham, Cunningham, Cunningham, Cunningham, Delamarter, Elmegreen, Eric G. Blackman, Hartigan, Heyer, Jonathan Carroll, Knee, Krumholz, Krumholz, Krumholz, Larson, Lebedev, Lee, Li, Mac Low, Mac Low, Matzner, Matzner, Matzner, Nakamura, Quillen, Shepherd, Smith, Stanke, Stone, Sutherland, Warin, Yirak   +42 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Adjustable parameters-based control strategy for VSG-type grid forming converters considering grid strength

Frontiers in Energy Research
IntroductionGrid-forming control has received increasing attention for being an effective solution to cope with low-inertia and weak damping systems.
Xuekai Hu, Zifan Li, Zhipeng Shu, Yaqin Wang   +3 more
doaj   +1 more source

Multi-terminal HVDC grids with inertia mimicry capability [PDF]

, 2016
The high-voltage multi-terminal dc (MTDC) systems are foreseen to experience an important development in the next years. Currently, they have appeared to be a prevailing technical and economical solution for harvesting offshore wind energy. In this study,
Gharehpetian, Gevorg B., Luna Alloza, Álvaro, Rodríguez Cortés, Pedro, Rouzbehi, Kumars, Zhang, Weiyi   +4 more
core   +2 more sources

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Adaptive current-limiting control for grid-forming converter during unbalanced faults

International Journal of Electrical Power & Energy Systems
Grid-forming converters are increasingly deployed to connect renewable energy sources to the grid, but their control behavior during unbalanced grid faults can affect system stability and protection.
Xinquan Chen, Zhe Yang
doaj   +1 more source

Optimal short‐circuit current control of the grid‐forming converter during grid fault condition

IET Renewable Power Generation, 2021
A considerable amount of rotating synchronous machines are being replaced by the increasing capacity of converter‐based resources, which has stimulated a demand for grid‐forming converters (GFCs) for grid supporting.
Chang Liu, Xu Cai, Rui Li, Renxin Yang
doaj   +1 more source