Results 31 to 40 of about 1,710 (215)

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

E3S 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, Zhautikov Bakhyt, Sivyakova Galina, Nikulshin Alexandr, Druzhinin Valery, Kamarova Saule, Kuntush Yelena, Siverskaya Tatyana   +7 more
doaj   +1 more source

HV multi-terminal DC lines as the backbone of the energy transmission system – A research plan to tackle challenges [PDF]

MATEC Web of Conferences, 2019
Transmission system reinforcement is an issue of great importance, in an effort to handle the increasing renewable power generation. Nevertheless, the upgrade of the transmission system (lines, substations, etc.) is not always attainable, due to techno ...
Christodoulou Christos, Lazarou Stavros, Zafiropoulos Elias, Vita Vasiliki, Ekonomou Lambros   +4 more
doaj   +1 more source

Network Coordination between High-Voltage DC and High-Voltage AC Transmission Systems Using Flexible AC Transmission System Controllers

Energies, 2022
The strategic intent of the African Union is to develop a “Smart Integrated African Electric Power Super Grid” driven by modern tools and advances in high-voltage direct current (HVDC) engineering and flexible alternating current technology systems ...
Nomihla Wandile Ndlela, Innocent Ewean Davidson   +1 more
doaj   +1 more source

Research on 3‐D total electric field of crossing high voltage direct current transmission lines based on upstream finite element method

High Voltage, 2021
The ongoing large‐scale construction of ultra high voltage direct current projects in China makes the crossing of two high voltage direct current (HVDC) lines inevitable.
Xiaoqian Ma, Li Xie, Kun He, Jiayu Lu
doaj   +1 more source

Transient fault identification method for bipolar short‐circuit fault on MMC‐HVDC overhead lines based on hybrid HVDC breaker

High Voltage, 2021
A bipolar short‐circuit transient fault identification method for overhead transmission lines in modular multi‐level converter‐based high voltage direct current (MMC‐HVDC) grid based on the hybrid HVDC breaker is proposed.
Botong Li, Chunbo Li, Bin Li, Weijie Wen, Hanqing Cui, Jiang Su   +5 more
doaj   +1 more source

Recent advances in High-Voltage direct-current power transmission systems

, 2006
The ever increasing progress of high-voltage high-power fully-controlled semiconductor technology continues to have a significant impact on the development of advanced power electronic apparatus used to support optimised operations and efficient ...
Nikolas Flourentzou, Demetriades, G.D., Vassilios G. Agelidis, Georgios D. Demetriades, Flourentzou, N., Agelidis, V.G.   +5 more
core   +1 more source

Nonlinear Control Design of Three-Level Neutral-Point-Clamped-Based High-Voltage Direct Current Systems for Enhanced Availability during AC Faults with Semi-Experimental Validation

Engineering Proceedings, 2023
This research paper addresses the issue of enhancing the operational availability of NPC three-level converter-based high-voltage direct current (HVDC) transport systems during alternating current (AC) grid fault conditions.
Ilyass El Myasse, Aziz Watil, Abdelmounime El Magri, Ambe Harrison   +3 more
doaj   +1 more source

Behaviour of HVDC Cables Under Variable Load Conditions: PD Detection and Recognition [PDF]

, 2023
HVDC technology is widely used today in the field of energy transmission over long distances and with underground or submarine cable lines. The advantages of these applications lie in the absence of stability and transport capacity problems which ...
Romano P., Rizzo G., Ala G., Imburgia A., Viola F., Di Fatta A.   +5 more
core   +1 more source

Novel protection scheme for high-voltage direct-current transmission lines based on one-terminal transient AC voltage

The Journal of Engineering, 2019
This paper considers the distributed capacitance of transmission lines to research the protection of high-voltage direct-current (HVDC) transmission line.
Yunke Zhang, Yongli Li, Jinzhao Song, Botong Li, Xiaolong Chen, Liang Zeng   +5 more
doaj   +1 more source

Research and simulation of line overvoltage in HVDC transmission system

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The distribution of heavy load area and resource area is seriously unbalanced in China. HVDC transmission system project with long-distance and large capacity transmission characteristics has practical significance in today’s social development. Firstly, this paper discusses the basic knowledge of over-voltage in DC transmission
Zifa Liu, Xingya Wen
openaire   +1 more source