Results 21 to 30 of about 2,596,360 (213)

Single-end Protection Scheme Based on Transient Power Waveshape for Hybrid HVDC Transmission Lines

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
The recent in-depth development of hybrid high-voltage direct current (HVDC) transmission systems poses looming adaptability challenges to protection.
Feiyang Dai, Zexin Zhou, Xingguo Wang
doaj   +1 more source

A Single-Terminal Fault Location Method for HVDC Transmission Lines Based on a Hybrid Deep Network

open access: yesElectronics, 2021
High voltage direct current (HVDC) transmission systems play an increasingly important role in long-distance power transmission. Realizing accurate and timely fault location of transmission lines is extremely important for the safe operation of power ...
Lei Wang, Yigang He, Lie Li
semanticscholar   +1 more source

Model parameter identification for scaled-down analogous HVDC transmission lines using broad spectral response analysis

open access: yesEnergy Reports, 2022
Traditional analogous π-shape transmission line models are mainly designed based on the amplitude and phase response characteristics of the distributed-parameter transmission lines at the power frequency.
Jinrui Tang   +4 more
doaj   +1 more source

Experimental study on fault ride-through capability of VSC-based HVDC transmission system [PDF]

open access: yesArchives of Electrical Engineering, 2021
For voltage-source-converter based high-voltage-direct-current (VSC-HVDC) transmission systems, fault ride-through (FRT) capability is a very important grid requirement in order to enhance its operational availability under an alternating current (AC ...
Ngo Minh Khoa   +2 more
doaj   +1 more source

AC fault ride through control strategy on inverter side of hybrid HVDC transmission systems

open access: yesJournal of Modern Power Systems and Clean Energy, 2019
Hybrid high-voltage direct current (HVDC) transmission systems employ a new type of HVDC transmission topology that combines the advantages of the line-commutated converter system and the voltage-source converter system.
Zexin Zhou   +6 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

Practical calculation of SCR of LCC-HVDC considering the role of VSC-HVDC

open access: yesZhejiang dianli, 2023
The accurate quantification of transmission limit and grid strength of the multi-infeed LCC-HVDC (line-commutated converter technology-based high-voltage DC) and VSC-HVDC (voltage source converter technology-based high-voltage DC) systems has become one ...
YANG Xiaolei   +5 more
doaj   +1 more source

Ultra-fast current differential protection with high-sensitivity for HVDC transmission lines

open access: yes, 2021
Protection of transmission lines is the most important defense against faults in multi-terminal HVDC system. Up until now, no single protection can balance the operation speed and sensitivity needed for all fault types.
Haijin Liu   +6 more
semanticscholar   +1 more source

Causes of high amplitude of pipe-to-soil potential under HVDC interference and influencing factors

open access: yes工程科学学报, 2021
Since the 1950s, international studies have confirmed the technical advantages of high-voltage direct current (HVDC) transmission projects, such as large capacity, low loss, and high stability.
Xun YUAN   +3 more
doaj   +1 more source

Study of Hybrid Transmission HVAC/HVDC by Particle Swarm Optimization (PSO)

open access: yesEnergies, 2022
There are considerable power losses in Indonesia’s SUMBAGUT 150 kV transmission High Voltage Alternating Current Network (HVAC) system. These power losses and the voltage profile are critical problems in the transmission network system.
Yulianta Siregar, Credo Pardede
doaj   +1 more source

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