Results 21 to 30 of about 30,648 (309)

Stability Impacts of an Alternate Voltage Controller (AVC) on Wind Turbines with Different Grid Strengths

Energies, 2023
This paper studies the stability impact of the alternate voltage controller’s (AVC) low-pass filter (LPF) in a wind turbine’s grid-connected voltage source converter (VSC).
Dimitrios Dimitropoulos, Xiongfei Wang, Frede Blaabjerg   +2 more
doaj   +1 more source

Modeling and Control of a Two-Bus System With Grid-Forming and Grid-Following Converters

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022
The utilization of power converters in a distribution network could give rise to stability problems, especially when the penetration is high. The existing literature studies the modeling and stability of converters with specific control or synchronization methods.
Zhixiang Zou, Jian Tang, Xiongfei Wang, Zheng Wang, Wu Chen, Giampaolo Buticchi, Marco Liserre   +6 more
openaire   +2 more sources

Modeling and Control of Grid Forming Converters: A Systematic Review

IEEE Access
In electrical power systems where the proportion of synchronous generators (SG) is gradually decreasing, grid-forming (GFM) converters need to be installed and controlled to meet all the system requirements that SGs have provided to date.
Macit Tozak, Sezai Taskin, Ibrahim Sengor, Barry P. Hayes   +3 more
doaj   +1 more source

A Robust Phase-Lock-Loop for Grid-Following Converters

2024 IEEE 15th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
This work was supported by the National Natural Science Foundation of China under Grant 62173148 and 52377186.
Ying, Gengning, Zeng, Jun, Song, Jie, Liu, Ni, Wu, Minhai, Prieto Araujo, Eduardo, Liu, Junfeng   +6 more
openaire   +2 more sources

Grid-Synchronization Stability of Converter-Based Resources—An Overview

IEEE Open Journal of Industry Applications, 2020
This paper presents an overview of the synchronization stability of converter-based resources under a wide range of grid conditions. The general grid-synchronization principles for grid-following and grid-forming modes are reviewed first. Then, the small-
Xiongfei Wang, Mads Graungaard Taul, Heng Wu, Yicheng Liao, Frede Blaabjerg, Lennart Harnefors   +5 more
doaj   +1 more source

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

Distributed control of a fault tolerant modular multilevel inverter for direct-drive wind turbine grid interfacing

, 2012
Modular generator and converter topologies are being pursued for large offshore wind turbines to achieve fault tolerance and high reliability. A centralized controller presents a single critical point of failure which has prevented a truly modular and ...
Finney, Stephen J., Parker, Max, Ran, Li, Finney, Stephen, Parker, Max A.   +4 more
core   +1 more source

Stability Boundary Characterization and Power Quality Improvement for Distribution Networks

Energies
With the increasing proportion of distributed generators (DGs), distribution networks usually include grid forming (GFM) and grid following (GFL) converters.
Min Zhang, Yi Long, Shuai Guo, Zou Xiao, Tianling Shi, Xin Xiang, Rui Fan   +6 more
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

SCR Independent Polytopic Lyapunov Control for MMC HVDC Networks

IEEE Access
The growing High-Voltage Direct Current transmission networks require modern control strategies in converter stations to ensure reliable operation and uninterrupted energy supply, particularly under unstable and low Short-Circuit ratio conditions ...
Rohan Kamat Tarcar, Marjan Popov, Aleksandra Lekic   +2 more
doaj   +1 more source