Results 21 to 30 of about 1,490 (263)

Simulation study on transient stability of AC systems considering the connected power-controlled grid-forming converters

Zhejiang dianli
To investigate the evolution trend of transient stability of power-controlled grid-forming （GFM） converters connected to AC systems， generators are replaced with power-controlled grid-forming （GFM） converters and grid-following （GFL） converters of equal ...
DAN Yangqing, HUANG Ying, HAN Lianshan, WANG Chenxuan, WU Jiahui, LIU Qing, XU Zheng   +6 more
doaj   +1 more source

Impact of Grid-forming Converter on Electromechanical Oscillations

2023 IEEE Belgrade PowerTech, 2023
As distributed generation increases, it is essential to study its impact on the grid dynamics. This paper focuses on understanding the influence of the emergent technology of Grid-Forming converters on the electromechanical oscillations of the power system.
BOUKHENFOUF, Johan, GUILLAUD, Xavier, BRUYERE, Antoine   +2 more
openaire   +2 more sources

Grid-Forming Converter Fault Control Strategy and Its Impact on Relay Protection: Challenges and Adaptability Analysis

Energies
As the proportion of new energy generation continues to rise, power systems are confronted with novel challenges. Grid-forming converters, which possess voltage source characteristics and can support the grid, typically employ a VSG control strategy ...
Xiaopeng Li, Jiaqi Yao, Wei Chen, Wenyue Zhou, Zhaowei Zhou, Hao Wang, Zhenchao Jiang, Wei Dai, Zhongqing Wang   +8 more
doaj   +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

Damping Low-Frequency Oscillations in Power Systems Using Grid-Forming Converters

IEEE Access, 2021
The increasing incorporation of renewable energy in power systems is causing growing concern about system stability. Renewable energy sources are connected to the grid through power electronic converters, reducing system inertia as they displace ...
Jose Luis Rodriguez-Amenedo, Santiago Arnaltes Gomez   +1 more
doaj   +1 more source

Origin of anomalous instability of grid‐forming converters tied to stiff grid

IET Renewable Power Generation, 2023
Grid‐forming (GFM) converter is believed to be highly promising in the future power systems, due to its ability of providing voltage and frequency support.
Zhenkun Hong, Hongsheng Xu, Zhuoqi Hou, Meng Zhan   +3 more
doaj   +1 more source

Review of transient control strategies for grid-forming converters under grid voltage sag conditions

电力工程技术
As a large amount of renewable energy is integrated into the grid via power electronic converters，the power system is faced with challenges，such as reduced inertia，diminished disturbance resistance，and declining transient support capabilities.
Yuxuan LIN, Wei LI, Ling ZHU, Chong REN
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

AC-Side Impedance-Based Stability Assessment in Grid-Forming Modular Multilevel Converters

IEEE Access
Grid-forming converters can emulate the behavior of a synchronous generator through frequency droop control. The stability of grid-forming modular multilevel converters can be studied via the impedance-based stability criterion. This paper presents an ac-
Mehrdad Nahalparvari, Mohsen Asoodar, Staffan Norrga, Hans-Peter Nee   +3 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source