Results 11 to 20 of about 5,723,733 (290)

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

open access: yes, 2013
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 ...
Parker, Max, Ran, Li, Finney, Stephen
core   +4 more sources

Grid-Forming Converters: Control Approaches, Grid-Synchronization, and Future Trends—A Review

open access: yesIEEE Open Journal of Industry Applications, 2021
In the last decade, the concept of grid-forming (GFM) converters has been introduced for microgrids and islanded power systems. Recently, the concept has been proposed for use in wider interconnected transmission networks, and several control structures ...
Roberto Rosso   +4 more
doaj   +1 more source

Unified Virtual Oscillator Control for Grid-Forming and Grid-Following Converters [PDF]

open access: yesIEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
A unified virtual oscillator controller (uVOC) is proposed, which enables a unified analysis, design, and implementation framework for both grid-forming (GFM) and grid-following (GFL) voltage source converters (VSCs). Oscillator based GFM controllers, such as dispatchable virtual oscillator control (dVOC), offer rigorous analytical framework with ...
M. A. Awal, Iqbal Husain
openaire   +2 more sources

Grid-following and grid-forming PV and wind turbines

open access: yes, 2022
As penetration of photovoltaic (PV) and wind generation systems driven by grid-connected power converters monotonously increases, unusual interactions between innovative and legacy generation systems become more concerning, since they threaten the system
Rodríguez Cortés, Pedro, Lai, Ngoc Bao
core   +1 more source

Robust repetitive feedback control of a three-phase grid connected inverter [PDF]

open access: yes, 2010
This paper discusses the design of a repetitive feedback controller for a grid-connected two-level three-phase voltagesource inverter connected between a DC source and the grid through an LCL filter.
Sharkh, S.M.   +8 more
core   +2 more sources

Equivalent Active Distribution Networks Considering Grid Forming Converters

open access: yes, 2021
S.527-531Converters connected to distribution networks play an increasingly important role in the generation mix. Especially grid forming converters providing inertia to the system are vital to handle critical events in a converter dominated system. Thus,
Hendrik Lens   +7 more
core   +1 more source

Analysis of X/R Ratio Effect on Stability of Grid-Following and Grid-Forming Converters [PDF]

open access: yes, 2023
The power system is undergoing significant changes with the increasing integration of renewable energy sources, such as wind and solar. The high penetration of these renewable energy sources has posed new challenges on the stability of the power grid. In
Anvari-Moghaddam, Amjad; id_orcid   +3 more
core   +1 more source

Stability enhancement strategies for a 100% grid‐forming and grid‐following converter‐based Irish power system

open access: yesIET Renewable Power Generation, 2022
With increasing shares of wind and/or solar power in many power systems, the possibility of a 100% power converter‐based system becomes more likely. Consequently, the dynamic response of the Irish transmission systems with 100% (grid‐following and grid ...
Xianxian Zhao, Damian Flynn
doaj   +1 more source

Influence of Load Dynamics on Converter-Dominated Isolated Power Systems

open access: yesApplied Sciences, 2021
The operation of isolated power systems with 100% converter-based generation requires the integration of battery energy storage systems (BESS) using grid-forming-type power converters.
José Gouveia   +2 more
doaj   +1 more source

Impact of Digital Control Delay on Stability of Grid-Following Converters

open access: yes2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2022
In a digital controlled system, the delay is inevitable. It will change the phase-frequency characteristics of the system, which will affect the stability. This paper analyzes the configuration of the grid-following converter and builds its small-signal model in detail.
Gao, Xian   +3 more
openaire   +1 more source

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