Results 1 to 10 of about 18,543 (264)

HVDC power transmission electrode siting and design [PDF]

open access: green, 1997
This research strives to shed light on the feasibility and practicality of using deep earth electrodes to permit their use for extended periods without adverse consequences. This report begins with a review of the fundamentals associated with current conduction in earth, including the various techniques available for measuring the earth`s electrical ...
Russell J. Holt   +2 more
openalex   +4 more sources

HVDC technologies in electric power transmission: International practices and development pathways in Kazakhstan [PDF]

open access: diamondE3S Web of Conferences
High-voltage direct current (HVDC) transmission lines represent a key component of modern energy infrastructure, providing efficient longdistance electricity transmission and integration of renewable energy sources.
Akhatov Daulet   +7 more
doaj   +2 more sources

A Survey on HVDC Power Transmission Systems

open access: diamondBilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi, 2020
Electric power is generated and transported globally by the means of an “Alternating Current” (AC) process. However, there are some applications in which “Direct Current” (DC) power transmission is superior to AC. Problems due to the lack of technology that provides good control and regulation for conversions of DC-to-AC and AC-to-DC hampered ...
Mahir Kutay, Ahmad Mustapha Usman
openalex   +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

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

An Overview on VSC-HVDC Power Transmission Systems

open access: bronzeInternational Journal of Control and Automation, 2016
The Voltage Source Converter based High Voltage Direct Current(VSC-HVDC) is a new generation HVDC technology. Because of the technology of the PWM and the turn- on and turn-off electronic apparatus, VSC-HVDC could make up for the defective of the traditional HVDC. And the development is rapid.
Zhenying Pei   +3 more
openalex   +2 more sources

HVDC Transmission Line Protection Based on Transient Power

open access: diamondProcedia Technology, 2016
AbstractThis paper presents a new protection method for High Voltage Direct Current (HVDC) system based on transient power. Behavior of the HVDC system during fault is studied. Variation of transient power and the relation between various parameters of the line are analyzed during each fault.
Sherin Tom, Jaimol Thomas
openalex   +2 more sources

Power Electronic Converters Evolution In Transmission System: HVDC & FACTS Device [PDF]

open access: yesE3S Web of Conferences
Power electronics have helped achieve this objective of increasing capacity while improving reliability and sustainability and reducing operating costs over the years. They have provided added flexibility and control to power systems.
Rao D. S. N. M.   +4 more
doaj   +2 more sources

Parallel operation of diode‐rectifier based HVDC link and HVAC link for offshore wind power transmission

open access: gold2019 4th IEEE Workshop on the Electronic Grid (eGRID), 2019
As a promising scheme for offshore wind power transmission, diode rectifier based high voltage dc has raised wide attention recently. But the design of DR-HVDC is mainly based on the traditional line commutated converter HVDC, which required large amount of reactive power and generated high harmonics.
Lujie Yu, Rui Li, Lie Xu
openalex   +2 more sources

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