Results 101 to 110 of about 17,685 (234)

Unidirectional Protection Strategy for Multi-terminal HVDC Grids

open access: yesTransactions on Environment and Electrical Engineering, 2016
Protection issue is identified as the main drawback of emerging multi-terminal HVDC grids. Multi-terminal HVDC grid demands fast short circuit fault current interruption.
Ataollah Mokhberdoran   +3 more
doaj   +1 more source

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

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 ...
Anaya-Lara, O.   +5 more
core  

Assessment of technical and economic elements for HVAC-to-HVDC OHL conversion in Sicilian grid

open access: yes, 2023
The present paper reports several network analyses and provides technical and economic elements regarding the potential conversion of a transmission line from HVAC (High Voltage Alternating Current) to HVDC (High Voltage Direct Current).
Sessa, Sebastian Dambone   +4 more
core   +1 more source

Noise Characteristics of ±800 kV HVDC Convert StationBased on Spectrum Analysis

open access: yesZhongguo dianli, 2019
By collecting the sound pressure signals of the aerodynamic noise of the converter transformer fans, the electric field noise of the smoothing reactors and the electric field noise of the DC/ AC filter field in the 800 kV converter station, the spectrum ...
Yu HAN, Chao FAN, Guangke WANG, Qiang HE
doaj   +1 more source

Tracking wheel test for DC polymeric insulators [PDF]

open access: yes, 2011
Il lavoro di tesi svolto è atto ad apportare delle migliorie nel sistema di trasmissione HVDC (High Voltage Direct Current). Un elemento problematico per le linee aeree HVDC è dato dagli isolatori, questa situazione si aggrava particolarmente nel caso in
Gazzola, Alice
core  

Transient Overvoltage Analysis in HVDC MMC Power Cables: Assessment of the Critical Points

open access: yes, 2019
The current scenario of continuous and increasing production of energy from renewable sources and the progressive increase of interties between different countries, gives the high voltage direct current transmission lines (HVDC) a role of present and ...
Sessa, S. Dambone   +5 more
core   +1 more source

Space charge determination in HVDC power cable and its influence on electric field

open access: yes, 2010
Considerable amount of transmission and distribution of electricity is carried out by power cable. At present, most high voltage direct current (HVDC) installation uses traditional (oil-impregnated paper insulation and oil-filled-types) cables which pose
Choo, Chin Tze
core  

An equivalent modeling method for integrated water-wind-solar systems based on sparrow search algorithm

open access: yesEnergy Informatics
In the context of extensive integration of renewable energy sources into the electrical grid, the grid's fault transient behaviors have undergone significant changes.
Yuanhong Lu   +6 more
doaj   +1 more source

Characteristics and Commissioning of the Collaboration Between the Min-Yue Back-to-Back HVDC Transmission System and SVG/HAPF

open access: yesZhongguo dianli
HAPF (high voltage active power filter) and SVG (static var generator), which are specially used for filtering in large-capacity HVDC projects, are configured in the Min-Yue back-to-back HVDC transmission project to meet the filtering requirements and ...
Xiao LEI   +4 more
doaj   +1 more source

DESIGN AN SFCL FOR HVDC GRID

open access: yes, 2023
The increasing use of HVDC systems for transmitting power over long distances and incorporating renewable energy sources has made dealing with fault currents a key concern to maintain grid stability and equipment safety. This thesis offers an overview of
Duntow, Khadhar Abdi
core  

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