Results 21 to 30 of about 5,304 (193)

On Systematic DC Fault-Ride-Through of Multi-terminal MMC-HVDC Grids [PDF]

open access: yes, 2021
Development of Modular Multilevel Converter (MMC) based HVDC grids, as a new generation of Voltage Source Converter (VSC)-HVDC systems, has been considerable through the past decade.
Bak-Jensen, Birgitte   +5 more
core   +2 more sources

A Current Limiting Strategy to Improve Fault Ride-Through of Inverter Interfaced Autonomous Microgrids [PDF]

open access: yes, 2017
With high penetration of distributed energy resources (DER), fault management strategy is of great importance for the distribution network operation. The objective of this paper is to propose a current and voltage limiting strategy to enhance fault ride ...
Esmail Hamedani Golshan, Mohamad   +3 more
core   +2 more sources

A Hierarchical Control Strategy With Fault Ride-Through Capability for Variable Frequency Transformer [PDF]

open access: yes, 2014
A variable frequency transformer (VFT) is being considered as a new alternative to the classical back-to-back high voltage direct current (HVDC) link for interconnection of two asynchronous networks. The VFT is a retrospective form of frequency converter
Ambati, Bharath Babu   +4 more
core   +1 more source

New Sub-Module with Reverse Blocking IGBT for DC Fault Ride-Through in MMC-HVDC System

open access: yesEnergies, 2021
When integrating multi-grid renewable energy systems, modular multi-level converters (MMCs) are promising for high-voltage DC (HVDC) transmission. Because of the characteristics of the system, however, it is more difficult to prevent a fault at the DC ...
Ui-Jin Kim, Seok-Gyu Oh
doaj   +1 more source

Influence of fault-ride-through requirements for distributed generators on the protection coordination of an actual distribution system with reclosers [PDF]

open access: yes, 2017
This paper analyses the existing protection scheme of a real distribution system with distributed generators, in Greece. Network protection utilizes three successive reclosers at the main trunk and fuses at the laterals.
Konstantopoulos, G.C.   +4 more
core   +1 more source

An ADRC-Based Control Strategy for FRT Improvement of Wind Power Generation with a Doubly-Fed Induction Generator

open access: yesEnergies, 2018
This paper proposes a second-order active disturbance rejection control (ADRC)-based control strategy with an integrated design of the flux damping method, for the fault ride-through (FRT) improvement in wind power generation systems with a doubly-fed ...
Chenxing Yang   +2 more
doaj   +1 more source

Wind turbine control design to enhance the fault ride-through capability [PDF]

open access: yes, 2011
This paper presents a control strategy for wind turbines to enhance their fault ride-through capability. The controller design is based on pitch controlled variable speed wind turbine equipped with doubly-fed induction generator (DFIG).
Anaya-Lara, O.   +2 more
core   +1 more source

Fault ride‐through control based on voltage prioritization for grid‐forming converters

open access: yesIET Renewable Power Generation, 2023
This paper discusses that the existing grid codes on the fault ride‐through (FRT) operation have certain complications to be implemented in the grid‐forming (GFM) converters.
Saman Dadjo Tavakoli   +3 more
doaj   +1 more source

Active distribution power system with multi-terminal DC links [PDF]

open access: yes, 2015
A fast power restoration operational scheme and relevant stabilizing control is proposed for active distribution power systems with multi-terminal DC network in replacement of the conventional normal open switches. A 9-feeder benchmark distribution power
Chen, Dong, Xu, Lie, Zhang, Wendian
core   +2 more sources

Transient stability and FRT technologies of different synchronous wind turbine

open access: yesEnergy Reports, 2022
With the global energy transformation towards to a 100% renewable-based power system, the installed capacity of renewable energy generation has continued to grow rapidly in recent years. At the same time, due to the loss of synchronous machines, the grid-
Xinshou Tian   +5 more
doaj   +1 more source

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