Results 121 to 130 of about 93,852 (297)

Coordinated Control of DFIG , s Converter Under Unbalanced Grid Voltage Conditions Based on Predictive Current Control

Kongzhi Yu Xinxi Jishu, 2013
Predictive current control(PCC) scheme of doubly-fed induction generator(DFIG) system under unbalanced power grid is obtained by discretizing the mathematical model of rotor side converter(RSC) and grid side converter(GSC) of DFIG in the two-phase ...
SHENG Jianke, NIAN Heng, YU Nisa, SHE Yue, HU Youqun, WANG Xinze   +5 more
doaj  

Sliding Mode Control of Vienna Rectifier Under Unbalanced Weak Power Grid

IEEE Access
Three-phase, three-level Vienna rectifiers are widely used in power supplies for the advantages of high power density, low switching voltage stress and low grid side current harmonics.
Yanbing Tian, Hao Yuan, Wenjie Zhu, Xuewu Li, Yunfei Li   +4 more
doaj   +1 more source

Control Approach of Grid-Connected PV Inverter under Unbalanced Grid Conditions

Processes
In grid-connected photovoltaic (PV) systems, power quality and voltage control are necessary, particularly under unbalanced grid conditions. These conditions frequently lead to double-line frequency power oscillations, which worsen Direct Current (DC)-link voltage ripples and stress DC-link capacitors.
openaire   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Control of Three-phase Four-leg Micro-grid Inverter in Islanding Mode

Kongzhi Yu Xinxi Jishu, 2013
Off-grid operation is one of the significant characteristics of micro-grid. In off-grid mode, unbalanced loads will cause voltage unbalance and degrade the performance of micro-grid.
TAN Lanlan
doaj  

ADALINE generalized integrator based control to mitigate the power quality issues in grid connected solar PV systems

AIP Advances
This paper presents a control strategy for a grid-connected solar photovoltaic (PV) system that effectively addresses power quality issues arising from various grid conditions and load types.
Priyank Nema, Sivasankaran V
doaj   +1 more source

Integrating Automated Electrochemistry and High‐Throughput Characterization with Machine Learning to Explore Si─Ge─Sn Thin‐Film Lithium Battery Anodes

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
A closed‐loop, data‐driven approach facilitates the exploration of high‐performance Si─Ge─Sn alloys as promising fast‐charging battery anodes. Autonomous electrochemical experimentation using a scanning droplet cell is combined with real‐time optimization to efficiently navigate composition space.
Alexey Sanin, Jackson K. Flowers, Tobias H. Piotrowiak, Frederic Felsen, Leon Merker, Alfred Ludwig, Dominic Bresser, Helge Sören Stein   +7 more
wiley   +1 more source

From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries

Advanced Energy Materials, EarlyView.
This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku, Sangbin Park, Sunha Hwang, Sunghyun Lim, Won‐Sub Yoon, Jongsoon Kim   +5 more
wiley   +1 more source

A Novel Control Method for Current Waveform Reshaping and Transient Stability Enhancement of Grid-Forming Converters Considering Non-Ideal Grid Conditions

Energies
The proliferation of next-generation renewable energy systems has driven widespread adoption of electronic devices and nonlinear loads, causing grid distortion that degrades waveform quality in grid-forming (GFM) converters. Additionally, unbalanced grid
Tengkai Yu, Jifeng Liang, Shiyang Rong, Zhipeng Shu, Cunyue Pan, Yingyu Liang   +5 more
doaj   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source