Results 21 to 30 of about 1,054,199 (245)

Power-Synchronized Grid-Following Inverter Without a Phase-Locked Loop

IEEE Access, 2021
This paper proposes a power-synchronized control strategy for grid-following inverters (GFLIs) to regulate their power exchange with the grid without any need for sensing/regulating the point of connection voltage.
Behrooz Bahrani
doaj   +1 more source

Frequency-coupled impedance model based subsynchronous oscillation analysis for direct-drive wind turbines connected to a weak AC power system

The Journal of Engineering, 2019
Recently, the emerging subsynchronous oscillation (SSO) issue caused by interactions between power electronic converters and weak grids has provoked serious stability concerns. Impedance modelling based method has been widely used to analyse the emerging
Wei Liu, Xiaorong Xie, Jan Shair, Jingbo He   +3 more
doaj   +1 more source

Control Performance Characterization and Monitoring Scheme for Power Converters in Weak Grids

IEEE Open Journal of Power Electronics, 2023
In weak grids, control performance of power converters is negatively affected by the significantly varied grid impedance, which can easily lead to degradation of anti-harmonic performance, resonances or even system instability.
Jiachen Wang, Qing Liu, Xiangchen Zeng, Weijian Han, Zhen Xin   +4 more
doaj   +1 more source

Grids and Clouds Integration and Interoperability: an overview [PDF]

, 2011
International audienceAre grids and clouds different solutions to the same problems? Or are they simply different aspects of the same solution? Or maybe different solutions to different problems? Are they independent or complementary? Can they and should
Salomoni, Davide, Salomoni, D., Riedel, Morris, Meglio, Alberto Di, Memon, Shahbaz, Riedel, Morris, Di Megliio, A., Shahbaz Mohammad Memon, Memon, Shahbaz, Riedel, M., Di Meglio, A., Morris Riedel, Loomis, C., Alberto Di Meglio, Loomis,Cal, Davide Salomoni, Memon, M.S., Reidel, M., Loomis, Cal, Memon, S., Salomoni, Davide, Di Meglio, Alberto, Charles Loomis   +22 more
core   +1 more source

A classification of emerging and traditional grid systems [PDF]

, 2008
The grid has evolved in numerous distinct phases. It started in the early ’90s as a model of metacomputing in which supercomputers share resources; subsequently, researchers added the ability to share data.
Li, M, Kurdi, H, Al-Raweshidy, H
core   +6 more sources

Differential Flatness-Based Performance Enhancement of a Vector Controlled VSC With an LCL-Filter for Weak Grids

IEEE Access, 2021
In this paper, a novel single-loop flatness-based controller (FBC) is proposed to control the grid-side current in a shunt converter connected to a weak grid through an LCL-filter.
Hassan Abdullah Khalid, Carlo Cecati, Nasser Ahmed Al-Emadi, Adel Gastli, Lazhar Ben-Brahim   +4 more
doaj   +1 more source

Active Damping Adaptive Controller for Grid-Connected Inverter Under Weak Grid [PDF]

IEEE Access, 2021
The stability of grid-connected inverters is very sensitive to varying grid impedance, especially in the weak grid condition. In this paper, based on the Lyapunov method and with the micro-grid impedance identification, an active damping adaptive control strategy is proposed to guarantee local asymptotic stability for an LCL inverter system.
Hong Li, Xin Ding, Ruinan Xue, Guojin Li, Yanming Chen   +4 more
openaire   +2 more sources

"Weak Grids "Weak Grids and and GridGrid--Forming Converters"Forming Converters"

, 2021
This presentation was part of the SP5 & SP6 WEBINAR on Grid solutions to realize 450 GW of offshore wind capacity by 2050.
openaire   +2 more sources

A new decentralized periodic replication strategy for dynamic data grids [PDF]

, 2014
Data grids provide scalable infrastructure for storage resource and data files management, which support data-intensive applications that need to access to huge amount of data stored at distributed locations around the world.
Charrada, Faouzi Ben, Chettaoui, Hanene
core   +1 more source

INTEGRATION OF WIND FARMS INTO WEAK AC GRIDS [PDF]

, 2020
Large wind farms are usually located in remote and offshore areas. High voltage transmission systems that have long transmission distances are used to deliver the wind power to main grids. Weak AC grids have high impedance, low short circuit ratio (SCR) and/or low inertia compared to strong AC grids.
openaire   +1 more source