Results 21 to 30 of about 368,690 (301)
HVDC (High Voltage Direct Current) Transmission System: A Review Paper [PDF]
Gyancity Journal of Engineering and Technology, 2018 Back in the early days of electricity supply, AC (alternating current) was adopted for power transmission because it could be stepped up or down as needed by transformers and because it could be interrupted more easily than DC (direct current). High-voltage AC grids evolved as an efficient way to connect existing islands of distribution grids and large
Kumar, Abhishek +1 more
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WSN-Based Measurement of Ion-Current Density Under High-Voltage Direct Current Transmission Lines
IEEE Access, 2019 Ion-current density is a significant indicator of electromagnetic environment under high voltage direct current lines. To improve measurement accuracy and convenience, this paper concluded factors that affect measurement results and a wireless ...
Yong Cui +5 more
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High Voltage Direct Current Transmission (HVDC)
Revista de Operaciones Tecnologicas, 2023 High Voltage Direct Current (HVDC) transmission links are currently in operation throughout the world. Until a few years ago, what has limited the use of this way of transmitting power has generally been its cost, but with the advances in power electronics in reducing costs in thyristors: higher rated voltage and current, and simplification of the ...
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Journal of Engineering, 2021 This research analyzes the level of the short circuit effect of the Iraqi super network and decides the suitable location for the High Voltage Direct Current (HVDC) connections in order to obtain the best short circuit reduction of the total currents of ...
Zainab Nadhim Abbas +1 more
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A hybrid modular multilevel converter for medium-voltage variable-speed motor drives [PDF]
, 2017 Modular multilevel converters (MMC) have revolutionized the voltage-sourced converter-based high-voltage direct current transmission, but not yet got widespread application in medium-voltage variable-speed motor drives, because of the large capacitor ...
Finney, Stephen J. +4 more
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The Journal of Engineering, 2019 Underwater long-distance high-voltage direct current transmission system can provide long-term, reliable, and sustainable energy for ocean observatories system which has higher reliability requirement than onshore or conventional underwater equipment. As
Siyuan Ma +10 more
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HVDC transmission systems: Bipolar back-to-back diode clamped multilevel converter with fastoptimum-predictive control and capacitor balancing strategy [PDF]
, 2011 Voltage source multilevel power converter structures are being considered for high power high voltage applications where they have well known advantages.
Chaves, Miguel +4 more
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A comprehensive analysis and hardware implementation of control strategies for high output voltage DC-DC boost power converter [PDF]
, 2016 Classical DC-DC converters used in high voltage direct current (HVDC) power transmission systems, lack in terms of efficiency, reduced transfer gain and increased cost with sensor (voltage/current) numbers.
Blaabjerg, Frede +5 more
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IET Generation, Transmission & Distribution, 2021 High voltage direct current has been more and more popular in modern transmission systems. Accurate fault location could help fault clearance and fast recovery of the faulted system.
Guomin Luo +5 more
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A Impact of High Voltage Direct Current Link on Transmission Line in Kurdistan Power System
Journal of Engineering, 2022 Kurdistan power system is expanded along years ago. The electrical power is transmitted through long transmission lines. The main problem of transmission lines is active and reactive power losses. It is important to solve this issue, unless, the most of
Truska K. Mohammed Salih +2 more
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