Results 1 to 10 of about 792,851 (265)

Traveling Waves-Based Method for Fault Estimation in HVDC Transmission System

open access: yesEnergies, 2019
The HVDC transmission system is winning hearts of researchers and electrical engineers because of its notable merits as compared to the HVAC transmission system in the case of long-distance bulk power transmission.
Raheel Muzzammel
doaj   +4 more sources

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

open access: yesIEEE Transactions on Power Systems, 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   +6 more sources

Hybrid LCC-AAC HVDC transmission system

open access: yesElectric Power Systems Research, 2020
A hybrid HVDC transmission system based on a line-commutated converter (LCC) and an alternate arm converter (AAC) is developed in this article. The basic operation principles and control methods of the proposed LCC-AAC hybrid HVDC system are demonstrated
P. Sun   +2 more
semanticscholar   +3 more sources

Reliability research of thyristors for HVDC transmission system. [PDF]

open access: yesSci Rep
Abstract The long-term operation performance of HVDC transmission systems is significantly influenced by the reliability of thyristors. However, the current reliability research of thyristors is mainly based on the leakage current and there is no comprehensive degradation characteristics of thyristors.
Xu Y, Pang L, Xie T, Chen Z, Guo J.
europepmc   +4 more sources

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   +2 more sources

New multi-injection commutation topology for circuit breakers of HVDC transmission lines [PDF]

open access: yesScientific Reports
Power-sharing between countries has an essential effect on increasing the power system’s reliability and allowing a resilient energy market. High voltage direct current (HVDC) transmission systems are preferable for long-distance transmission to decrease
Fady Wadie, Mahmoud Elsisi, Tamer Eliyan
doaj   +2 more sources

Optimal circuit breaker allocation strategy in DC transmission-connected systems [PDF]

open access: yesScientific Reports
The purpose of this study is to provide data for the best possible circuit breaker allocation in power grids with HVDC transmission while taking circuit breaker failure into account. The lack of a suitable selection of HVDC circuit breakers is one of the
Beopsoo Kim, Insu Kim
doaj   +2 more sources

Equivalent modeling and multi-parameter coupling optimization for DFIG-based wind farms considering SSO mode

open access: yesFrontiers in Energy Research, 2023
As a low-carbon and environmentally friendly renewable energy source, wind power has been globally recognized as the best solution to achieve energy saving and emission reduction and promote low-carbon economic growth.
Qian Zhang   +4 more
doaj   +1 more source

Technical and Economic Analysis of an HVDC Transmission System for Renewable Energy Connection in Afghanistan

open access: yesSustainability, 2022
Aged and insufficient domestic power plants and insecure, unreliable and expensive power imports pose significant challenges for the power sector of Afghanistan.
Gul Ahmad Ludin   +6 more
semanticscholar   +1 more source

Reliability evaluation of high voltage direct current transmission protection system based on interval analytic hierarchy process and interval entropy method mixed weighting

open access: yesEnergy Reports, 2021
As the core of the secondary part of the high voltage direct current transmission (hereinafter referred to as HVDC) transmission system, HVDC protection is the first line of defense for the safe and reliable operation of the HVDC transmission system. Its
Ting Wang   +5 more
doaj   +1 more source

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