Results 131 to 140 of about 3,949 (264)

Analysis of the Causes of User-Side Power Factor Deterioration in Distributed PV Power Generation Systems and Collaborative Control Solution

Kongzhi Yu Xinxi Jishu
With the ongoing expansion of installed capacity in distributed photovoltaic (PV) power generation systems in China, the issue of power factor deterioration exceeding specified limits, caused by the connection of distributed PV systems to user-side grids,
LIU Chongbo, WU Hengliang, LI Jian, CHENG Yuxu   +3 more
doaj  

Real-Time stability enhancement of DDPMSG-based tidal hybrid power systems using heuristic optimization. [PDF]

Sci Rep
Bhutto JK, Mohanty A, Mohanty PP, Satpathy AS, Das SR.   +4 more
europepmc   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Robust low complexity multisurface super twisting sliding mode control for DFIG systems. [PDF]

Sci Rep
Lee S, Kim G, Lee D, Kwon Y.
europepmc   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Cascaded fractional order control for load frequency stability of power systems integrated with renewable energy and electric vehicles. [PDF]

Sci Rep
Naz M, Paracha KN, Gulzar MM, Habib S, Bareer B, Farhan M.   +5 more
europepmc   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Observer aided robust control for cyber physical power grids with event triggered sliding mode controller. [PDF]

Sci Rep
Mohanty A, Ramasamy A, Satpathy A, Mohanty S, Rajamony RK, Bhutto JK, Hakami H, Mohanty P, Megalingam A, Allasi HL.   +9 more
europepmc   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Optimization of fuzzy logic controller in the converter of a standalone solar power system using the firefly algorithm. [PDF]

Sci Rep
Nouri P, Kamarposhti MA, Nouri T, Radmehr M.   +3 more
europepmc   +1 more source