Results 41 to 50 of about 6,389 (207)

Research on protection adaptability and optimization scheme of VSC/LCC DC parallel hybrid system

open access: yesAIP Advances, 2023
With the continuous development of high-voltage direct current (HVDC) technology and the relative concentration of power load and power, the HVDC parallel hybrid system will inevitably appear again.
A. Ting Wang   +5 more
doaj   +1 more source

Heuristic optimization of supplementary controller for VSC-HVDC/AC interconnected grids considering PLL [PDF]

open access: yes, 2016
This paper presents a new approach to enhance the dynamic responses of AGC in power systems by means of heuristic optimization of VSC-HVDC supplementary controllers.
Atef Abbas Elsaharty, Mohamed   +3 more
core   +2 more sources

A Black Start Scheme Based on Modular Multilevel Control-High Voltage Direct Current

open access: yesEnergies, 2018
Modern society’s need for power and its dependence on power sources is increasing with its development. As a result the consequences of blackout accidents have become more serious. At present, only three sources can be regarded as black-start power
Zecheng Li, Guojun Tan
doaj   +1 more source

Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]

open access: yes, 2018
Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A.   +3 more
core   +2 more sources

Reactive power sensitivity-based novel overvoltage suppression strategy for parallel VSC-and-LCC-HVDC transmission system

open access: yesInternational Journal of Electrical Power & Energy Systems
The rapid deployment of both line-commutated converter-based high-voltage direct current (LCC-HVDC) and voltage source converter-based high-voltage direct current (VSC-HVDC) does not only prolificate AC/DC grid coupling but also form new DC transmission ...
Yi Hao   +4 more
doaj   +1 more source

The VSC-HVDC Transmission System Performance Assessment

open access: yesJournal of Physics: Conference Series, 2023
Abstract As the use of renewable resources increases the transfer of power from remote area to consumer is a big challenge. Therefore, Voltage Source Converter High Voltage Direct Current (VSC-HVDC) transmission is gaining more popularity for integration of renewable energy generators to the consumers using smart grid.
Rupika Gandotra, null Kanika, Kirti Pal
openaire   +1 more source

Power hardware in the loop validation of fault ride through of VSC HVDC connected offshore wind power plants

open access: yesJournal of Modern Power Systems and Clean Energy, 2014
This paper presents the power hardware in the loop (PHIL) validation of a feed forward DC voltage control scheme for the fault ride through (FRT) of voltage source converter (VSC) high voltage DC (HVDC) connected offshore wind power plants (WPPs). In the
Ranjan Sharma   +5 more
doaj   +1 more source

Research on DC Protection Strategy in Multi-Terminal Hybrid HVDC System

open access: yesEngineering, 2021
Multi-terminal hybrid high-voltage direct current (HVDC) systems have been developed quickly in recent years in power transmission area. However, for voltage-source converter (VSC) stations in hybrid HVDC systems, no direct current (DC) filters are ...
Yuping Zheng   +5 more
doaj   +1 more source

Novel protection method for VSC‐HVDC transmission lines

open access: yesThe Journal of Engineering, 2018
The large shunt capacitances on both sides of VSC‐HVDC transmission line will block and reflect the travelling waves when a fault occurs on DC cable lines. When a forward fault occurs, the protection will detect the arrival of forward and backward travelling wave simultaneously. While for a backward fault, the arrival time difference of the forward and
Lingtong Jiang   +5 more
openaire   +2 more sources

Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]

open access: yes, 2009
The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Adam, G.P.   +5 more
core  

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