Results 1 to 10 of about 17,565 (205)

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

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

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

A Review on Topology, Operating and Control Methods of HVDC Transmission System for Offshore Wind Farms [PDF]

open access: yesE3S Web of Conferences, 2020
High-voltage direct current (HVDC) transmission systems are a promising solution for long distances power transmission offshore wind farms. In order to satisfy the reliability requirements of receiving-end grid and system, the topology, operation and ...
Li Jinke   +7 more
doaj   +1 more source

Continuous commutation failure suppression strategy in hybrid multi-infeed HVDC transmission system

open access: yes电力工程技术, 2022
For the wide application of high voltage direct current (HVDC) transmission engineering,the continuous commutation failure of line commutated converter HVDC (LCC-HVDC) has a seriously negative impact on the stable operation of the power system. Therefore,
ZHONG Mingming   +4 more
doaj   +1 more source

Analysis of the influence of long-distance DC cable on the fault of flexible HVDC system

open access: yes电力工程技术, 2023
In recent years, offshore wind power has developed rapidly. It is the most effective way to transmit the wind power far away from the coast through the voltage source converter based high voltage direct current (VSC-HVDC) transmission system.
JIANG Chongxue   +5 more
doaj   +1 more source

Distributed Controllers for Multiterminal HVDC Transmission Systems [PDF]

open access: yesIEEE Transactions on Control of Network Systems, 2017
arXiv admin note: substantial text overlap with arXiv:1406.5839, arXiv:1311 ...
Andreasson, Martin   +3 more
openaire   +3 more sources

Hybrid LCC-AAC HVDC transmission system

open access: yesElectric Power Systems Research, 2021
Abstract 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 following with appropriate system design and parameter selection.
Sun, P   +3 more
openaire   +2 more sources

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