Results 21 to 30 of about 13,412,516 (344)

Revisiting Grid-Forming and Grid-Following Inverters: A Duality Theory [PDF]

open access: yesIEEE Transactions on Power Systems, 2021
Power electronic converters for integrating renewable energy resources into power systems can be divided into grid-forming and grid-following inverters.
Yitong Li, Yunjie Gu, T. Green
semanticscholar   +1 more source

Stability Analysis of Converter Control Modes in Low-Inertia Power Systems [PDF]

open access: yes, 2018
This paper deals with the small-signal stability analysis of converter control modes in low-inertia power systems. For this purpose, a detailed differential-algebraic equation model of the voltage source converter and its control scheme is developed ...
Aristidou, P   +3 more
core   +1 more source

Analysis on the inertia and the damping characteristics of DFIG under multiple working conditions based on the grid-forming control

open access: yesEnergy Reports, 2022
The rapid development of wind power not only provides clean energy, but also brings new challenges to the reliable operation of power system, the high proportion of wind power connected to the grid has caused significant changes in the power supply ...
Jianzu Hu   +3 more
doaj   +1 more source

Grid-Forming Control: Advancements towards 100% Inverter-Based Grids—A Review

open access: yesEnergies, 2023
Changes are being implemented in the electrical power grid to accommodate the increased penetration of renewable energy sources interfaced with grid-connected inverters.
Emmanuel Ebinyu   +4 more
doaj   +1 more source

Unified reference controller for flexible primary control and inertia sharing in multi-terminal voltage source converter-HVDC grids [PDF]

open access: yes, 2016
Multi-terminal dc (MTDC) grids are expected to be built and experience rapid expansion in the near future as they have emerged as a competitive solution for transmitting offshore wind generation and overlaying their ac counterpart. The concept of inertia
Candela García, José Ignacio   +4 more
core   +2 more sources

Grid-forming frequency shaping control

open access: yes, 2020
As power systems transit to a state of high renewable penetration, little or no presence of synchronous generators makes the prerequisite of well-regulated frequency for grid-following inverters unrealistic. Thus, there is a trend to resort to grid-forming inverters which set frequency directly. We propose a novel grid-forming frequency shaping control
Jiang, Yan   +3 more
openaire   +2 more sources

Frequency support characteristics of grid-interactive power converters based on the synchronous power controller [PDF]

open access: yes, 2016
Grid-interactive converters with primary frequency control and inertia emulation have emerged and are promising for future renewable generation plants because of the contribution in power system stabilization.
Remón Rodríguez, Daniel   +2 more
core   +2 more sources

Bounds and Estimates for the Response to Correlated Fluctuations in Asymmetric Complex Networks

open access: yes, 2021
We study the spreading of correlated fluctuations through networks with asymmetric and weighted coupling. This can be found in many real systems such as renewable power grids. These systems have so far only been studied numerically.
Auer, Sabine   +3 more
core  

A robust braille recognition system [PDF]

open access: yes, 2004
Braille is the most effective means of written communication between visually-impaired and sighted people. This paper describes a new system that recognizes Braille characters in scanned Braille document pages.
B.C. Lin   +10 more
core   +3 more sources

Overcurrent Limiting in Grid-Forming Inverters: A Comprehensive Review and Discussion

open access: yesIEEE transactions on power electronics
Grid-forming (GFM) inverters are increasingly recognized as a solution to facilitate massive grid integration of inverter-based resources and enable 100% power-electronics-based power systems.
Nathan Baeckeland   +4 more
semanticscholar   +1 more source

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