Results 21 to 30 of about 6,389 (207)

Advanced Control Strategies of VSC Based HVDC Transmission System: Issues and Potential Recommendations

open access: yesIEEE Access, 2018
The converters and their control strategies play an important role in converting, transmitting, and improving the performance of high-voltage direct current (HVDC) system. There are different types of converter and their control strategies being employed
M. A. Hannan   +8 more
doaj   +1 more source

The Influence of VSC–HVDC Reactive Power Control Mode on AC Power System Stability

open access: yesEnergies, 2020
Voltage source converter-based high-voltage direct current (VSC-HVDC) has the advantage of fast and independent controllability on active and reactive power.
Ying Wang   +6 more
doaj   +1 more source

Hardware-in-the-Loop Test Method for Valve Base Controller of VSC-HVDC

open access: yesZhongguo dianli, 2021
The Zhangbei flexible DC power grid project is the world's first voltage source converter based high voltage direct current (VSC-HVDC) project, which brings higher requirements for the reliability of valve base controller (VBC).
Jianliang LU   +6 more
doaj   +1 more source

Very long distance connection of gigawatt size offshore wind farms: extra high-voltage ac versus high-voltage dc cost comparison [PDF]

open access: yes, 2016
This study presents a cost comparison between commercially available high-voltage DC (HVDC) and extra high-voltage AC shore connection (±320 kV voltage source converter and 420 kV-50 Hz single-core and three-core cables), for a 1 GW offshore wind farm ...
LAURIA, Stefano   +3 more
core   +1 more source

Switching stabilising control of VSC‐HVDC transmission systems

open access: yesIET Control Theory & Applications, 2020
Power systems are a class of typical cyber‐physical systems with switching‐hybrid dynamics. With the innovation of power electronics technology and the implementation of power grid development strategy, the application of voltage source converter‐based high voltage direct current (VSC‐HVDC) transmission has been paid more and more attention.
Tao Wang, Weiming Xiang, Yuwen Liu
openaire   +1 more source

Modified half-bridge modular multilevel converter for HVDC systems with DC fault ride-through capability [PDF]

open access: yes, 2014
One of the main challenges of voltage source converter based HVDC systems is DC faults. In this paper, two different modified half-bridge modular multilevel converter topologies are proposed.
Aboushady, A.A., Ahmed, K.H.
core   +2 more sources

Coordinated Control Strategies of VSC-HVDC-Based Wind Power Systems for Low Voltage Ride Through

open access: yesEnergies, 2015
The Voltage Source Converter-HVDC (VSC-HVDC) system applied to wind power generation can solve large scale wind farm grid-connection and long distance transmission problems. However, the low voltage ride through (LVRT) of the VSC-HVDC connected wind farm
Xinyin Zhang   +4 more
doaj   +1 more source

Inertia emulation control strategy for VSC-HVDC transmission systems [PDF]

open access: yes, 2013
There is concern that the levels of inertia in power systems may decrease in the future, due to increased levels of energy being provided from renewable sources, which typically have little or no inertia.
Adam, Grain Philip   +4 more
core   +1 more source

Analysis of Deloaded Wind Power in Hybrid AC/HVDC Systems by Frequency Stability Constrained Optimal Power Flow

open access: yesIEEE Access, 2023
This paper investigates the relationship between the frequency support by voltage-source converter based high-voltage direct current (VSC-HVDC) systems and the deloaded wind power operation considering the frequency stability constraints.
Sangwon Kim
doaj   +1 more source

Modular multilevel converter losses model for HVdc applications [PDF]

open access: yes, 2017
Multi-terminal high voltage dc (HVdc) grids can eventually became a feasible solution to transport energy to remote and/ or distant areas and its exploitation depend, among other things, on the performance of the converter terminals.
Antonio Ferreira, Abel   +1 more
core   +2 more sources

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