Results 11 to 20 of about 122,975 (192)

A novel intelligent fault identification method based on random forests for HVDC transmission lines. [PDF]

open access: yesPLoS ONE, 2020
In order to remedy the current problem of having been buffeted by competing requirements for both protection sensitivity and quick reaction of High Voltage Direct Current (HVDC) transmission lines simultaneously, a new intelligent fault identification ...
Hao Wu   +4 more
doaj   +2 more sources

GADF-VGG16 based fault diagnosis method for HVDC transmission lines [PDF]

open access: yesPLoS One, 2022
Transmission lines are most prone to faults in the transmission system, so high-precision fault diagnosis is very important for quick troubleshooting. There are some problems in current intelligent fault diagnosis research methods, such as difficulty in ...
Hao Wu   +4 more
semanticscholar   +2 more sources

High voltage direct current system-based generation and transmission expansion planning considering reactive power management of AC and DC stations [PDF]

open access: yesScientific Reports
This study presents a planning approach that considers the simultaneous expansion of generating and transmission systems, taking into account the location and sizing of generation units, AC transmission lines, and high-voltage direct-current (HVDC ...
Ehsan Akbari   +4 more
doaj   +2 more sources

Extension of pole differential current based relaying for bipolar LCC HVDC lines [PDF]

open access: yesScientific Reports
Line commutated converter (LCC) based high-voltage direct current (HVDC) transmission is characterized by long-distance power transfer, a complex and harsh corridor environment, and the rapid fault evolution of DC lines.
Ravi Shankar Tiwari   +3 more
doaj   +2 more sources

HYBRID AC/MT-HVDC TRANSMISSION LINES AND ITS EFFECTIVE OPERATION USING ENHANCED-FISH SWARM OPTIMIZER [PDF]

open access: yesProceedings on Engineering Sciences, 2023
Multi-Terminal-High Voltage Direct Current (MT-HVDC) transmission lines are used to transmit electricity over long distances with lower losses compared to traditional Alternating Current (AC) transmission lines.
Prabhat Kumar Srivastava   +5 more
doaj   +1 more source

Influence factors analysis of ionized field characteristics of Zhangbei ±500kV flexible direct current transmission lines [PDF]

open access: yesE3S Web of Conferences, 2021
The ionized field should be controlled in order to insure the environmental friendliness of high voltage direct current (HVDC) transmission lines. Different with traditional HVDC transmission lines, the metal return lines is first employed in Zhangbei ...
Zhang Jinlan   +4 more
doaj   +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

Research on calculated method for space electric field around HVDC transmission lines with buildings nearby

open access: yesIET Generation, Transmission & Distribution, 2022
High voltage direct current (HVDC) transmission technology has incomparable advantages in long‐distance and large‐capacity transmission. With the development of HVDC transmission technology, transmission lines inevitably pass through some densely ...
Yingyi Liu   +5 more
doaj   +1 more source

Evaluation of the Transient Overvoltages of HVDC Transmission Lines Caused by Lightning Strikes

open access: yesEnergies, 2022
High-voltage direct-current (HVDC) transmission systems are considered an outstanding solution due to high electrical losses emerging from long-distance transmission. However, HVDC transmission lines (TLs) are vulnerable to lightning strikes.
A. S. Zalhaf   +5 more
semanticscholar   +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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