Results 21 to 30 of about 6,768 (226)

Impact of Primary Frequency Control of Offshore HVDC Grids on Interarea Modes of Power Systems

Energies, 2019
Offshore high-voltage DC (HVDC) grids are developing as a technically reliable and economical solution to transfer more offshore wind power to onshore power systems.
Ali Bidadfar, Oscar Saborío-Romano, Vladislav Akhmatov, Nicolaos A. Cutululis, Poul E. Sørensen   +4 more
doaj   +1 more source

Parallel Restoration Method for AC-DC Hybrid Power Systems Based on Graph Theory

IEEE Access, 2019
High voltage direct current (HVDC) transmission systems have been used for interconnection among multiple power grids. As a result, the conventional AC power systems are transforming into AC-DC hybrid power systems.
Changcheng Li, Yin Xu, Jinghan He, Pei Zhang, Lin Liu   +4 more
doaj   +1 more source

Controllable reactor based hybrid HVDC breaker

High Voltage, 2020
Short circuit fault occurrence in high-voltage DC (HVDC) systems causes extremely high currents in a fast raising time that does not experience current zero-crossing.
Amir Heidary, Mehdi Bigdeli, Mehdi Bigdeli, Kumars Rouzbehi, Kumars Rouzbehi   +4 more
doaj   +1 more source

Stability Comparison Between Grid-forming and Grid-following Based Wind Farms Integrated MMC-HVDC

Journal of Modern Power Systems and Clean Energy, 2023
Grid-forming (GFM) control based high-voltage DC (HVDC) systems and renewable energy sources (RESs) provide support for enhancing the stability of power systems. However, the interaction and coordination of frequency support between the GFM-based modular
Rongcai Pan, Dong Liu, Shan Liu, Jie Yang, Longze Kou, Guangfu Tang   +5 more
doaj   +1 more source

Review on HVDC cable terminations

High Voltage, 2018
With modern power utilities going green by utilising renewable energy technologies and the development of the smart power grid, high-voltage direct current (HVDC) technologies become more and more important in the energy transmission. In particular, HVDC
Hanyu Ye, Tobias Fechner, Xianzhang Lei, Yi Luo, Mingyu Zhou, Zhengyi Han, Haitian Wang, Qikai Zhuang, Ruoyu Xu, Duo Li   +9 more
doaj   +1 more source

Inertia emulation control of VSC-HVDC transmission system

, 2011
The increasing penetration of power electronics interfaced renewable generation (e.g. offshore wind) has been leading to a reduction in conventional synchronous-machine based generation.
Roscoe, Andrew, Jiebei Zhu, Adam, Grain Philip, Grain P. Adam, Zhu, Jiebei, Andrew J. Roscoe, Booth, Campbell, Campbell D. Booth   +7 more
core   +1 more source

Power System Resilience Improvement Provided by VSC-HVDC Link Flexibility

, 2023
VSC-HVDC links can play a significant role in improving power system resilience due to their inner ability in properly regulating active and reactive powers in effective way.
Mottola F., Pisani C., Lauria D., Grieco G., Giannuzzi G.   +4 more
core   +1 more source

An on-line power/voltage stability index for multi-infeed HVDC systems

Journal of Modern Power Systems and Clean Energy, 2019
High-voltage direct current (HVDC) transmission is playing an increasingly important role in modern power systems, and the resulted power/voltage stability issue has raised widespread concern. This paper presents an on-line power/voltage stability index (
Jian Xu, Tiankai Lan, Siyang Liao, Yuanzhang Sun, Deping Ke, Xiong Li, Jun Yang, Xiaotao Peng   +7 more
doaj   +1 more source

Cyber Security of HVDC Systems: A Review of Cyber Threats, Defense, and Testbeds

IEEE Access
High Voltage Direct Current (HVDC) technology is one of the key enablers of the energy transition, especially for offshore wind energy systems. While extensive research on cyber security of High Voltage Alternating Current (HVAC) systems has been ...
Alfan Presekal, Mohsen Jorjani, Vetrivel Subramaniam Rajkumar, Himanshu Goyel, Nicola Cibin, Ioannis Semertzis, Alexandru Stefanov, Peter Palensky   +7 more
doaj   +1 more source

Superconducting Fault Current Limiters for HVDC Systems

Energy Procedia, 2015
AbstractHigh-voltage direct current (HVDC) transmission systems using Voltage-Source Converters (VSC) are widely recognized as offering significant potential for long distance high power delivery, particularly for offshore wind farm connections. One of the barriers for the development of multi-terminal HVDC systems is the lack of technologies which ...
Pei, Xiaoze, Smith, Alexander; id_orcid 0000-0001-6782-4627, Barnes, Michael   +2 more
openaire   +3 more sources