Results 61 to 70 of about 306,024 (298)

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

Impact of Grid Strength on the Transient Dynamics of Droop- and VSM-Based Grid-Forming Converters

International Transactions on Electrical Energy Systems
With the increasing use of converter-based resources, it has become more crucial to comprehend the dynamic interaction between grid-forming (GFM) control strategies and power system transients under different grid strengths.
Qusay Salem, Rafat Aljarrah
doaj   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

An Adaptive Hybrid Control of Reduced Switch Multilevel Grid Connected Inverter for Weak Grid Applications [PDF]

, 2023
Grid-connected inverters have a very significant role in the integration of renewable energy resources with utility grids. However, in recent studies, it is revealed that grid-connected inverters are vulnerable to instability when the nature of the grid ...
Prokop, Lukáš, Lukas Prokop, Khan, Muhammad Hilal, Muhammad Hilal Khan, Stanislav Misak, Yousra Abid, Vojtech Blazek, Adnan Umar Khan, Ullah, Nasim, Muhammad, Tila, Tila Muhammad, Mišák, Stanislav, Khan, Adnan Umar, Abid, Yousra, Nasim Ullah, Blažek, Vojtěch   +15 more
core   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Voltage profile improvement of weak grid with solar PV integration

, 2021
The objective of this paper is to improve the voltage profile of the grid in pertinence to grid due to power injection from distributed solar photovoltaic (PV) arrays.
Salkuti, Surender Reddy; Woosong University, John, Varun N.; Central University of Karnataka, Vuddanti, Sandeep; National Institute of Technology Andhra Pradesh   +2 more
core   +1 more source

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

Sliding Mode Observer-Based Phase-Locking Strategy for Current Source Inverter in Weak Grids

Energies
The current source inverter (CSI) has become the main grid-connected interface of distributed generation systems due to its advantages, such as boost capability, current controllability, and short-circuit protection capability.
Yubin Zheng, Hui Deng, Xiong Liu, Yuanpeng Guan   +3 more
doaj   +1 more source

Analysis of Persistent Oscillation Mechanism and Low Frequency Coupling Characteristics of Power System From the Perspective of Grid-Connected Converter

IEEE Access, 2021
The voltage disturbance in the weak grid will cause frequency coupling and even persistent oscillation of the grid current of grid connected converter in power system.
Qi Wang, Xingyong Zhao, Peng Wang
doaj   +1 more source

Mathematical model of grid‐connected inverter system in weak grid

Electronics Letters, 2015
Impedance‐based analysis is widely used to study the grid‐connected inverter system in a weak grid. The advantage of the analysis is that without knowing the accurate parameters of an inverter, its equivalent output impedance can be obtained by specific methods (e.g. the specific harmonic injection method) to investigate the system'
Haoran Li, Jinbin Zhao, Xuhong Yang
openaire   +1 more source