Results 81 to 90 of about 21,810 (200)

The Geomagnetic Storm on 10–12 May 2024 and Its Effect on the Swedish Power Grid

Space Weather, Volume 24, Issue 2, February 2026.
Abstract On 10–12 May 2024, at least five interplanetary coronal mass ejections (ICMEs) arrived at Earth and caused the strongest geomagnetic storm in over 20 years. During this geomagnetic storm, a disturbance occurred in a transformer in southern Sweden, causing a drop in power supply in the power line connecting Sweden and Poland.
A. V. L. Wallner, A. P. Dimmock, V. Lanabere, A. Johlander, S. Molenkamp Venholen, A. Viljanen, L. Juusola, L. Rosenqvist, J. Setréus, E. Yordanova, S. Buchert, U. Heiter, Yu. V. Khotyaintsev   +12 more
wiley   +1 more source

Vulnerability assessment of high-voltage direct current transmission systems to cyberattacks

Security and Safety
High-voltage direct current (HVDC) transmission systems demonstrate significant advantages in long-distance and high-capacity power transmission. Voltage-source converter-based HVDC (VSC-HVDC), with its flexible power flow control and independent active ...
Guo Rong, Liu Mengxiang, Deng Ruilong
doaj   +1 more source

Research on protection adaptability and optimization scheme of VSC/LCC DC parallel hybrid system

AIP Advances, 2023
With the continuous development of high-voltage direct current (HVDC) technology and the relative concentration of power load and power, the HVDC parallel hybrid system will inevitably appear again.
A. Ting Wang, B. Kun Chen, C. XingYang Hu, D. Hengxuan Li, E. Long’en Zhang, F. Pangqi Ye   +5 more
doaj   +1 more source

The adequacy of the present practice in dynamic aggregated modelling of wind farm systems [PDF]

, 2016
Large offshore wind farms are usually composed of several hundred individual wind turbines, each turbine having its own complex set of dynamics. The analysis of the dynamic interaction between wind turbine generators (WTG), interconnecting ac cables, and
Dyke, K, Kunjumuhammed, LP, Oates, C, Pal, BC   +3 more
core   +1 more source

A Rapid Prediction Method of Three‐Dimensional Total Electric Field Under UHVDC Transmission Lines With Buildings Nearby

High Voltage, Volume 11, Issue 1, Page 305-315, February 2026.
ABSTRACT The proliferation of ultra‐high voltage direct current (UHVDC) transmission technology has heightened regulatory oversight of electromagnetic fields around buildings. In conventional direct current (DC) line design, the presence of residential areas was typically not taken into account.
Tahan Wang, Li Xie, Kun He, Jiayu Lu
wiley   +1 more source

Steady-state Voltage Security-constrained Optimal Frequency Control for Weak HVDC Sending-end AC Power Systems

Journal of Modern Power Systems and Clean Energy
Due to the fact that a high share of renewable energy sources (RESs) are connected to high-voltage direct current (HVDC) sending-end AC power systems, the voltage and frequency regulation capabilities of HVDC sending-end AC power systems have diminished.
Qiangqiang Wang, Liangzhong Yao, Jian Xu, Yuping Zheng, Wei Li, Wei Wang   +5 more
doaj   +1 more source

OPF-Based Optimal Location of Two Systems Two Terminal HVDC to Power System Optimal Operation [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2013
In this paper a suitable mathematical model of the two terminal HVDC system is provided for optimal power flow (OPF) and optimal location based on OPF such power injection model.
Mehdi Abolfazli, Afshin Lashkarara, Ahad Kazemi, Seyed Ali Nabavi Niaki   +3 more
doaj  

HVDC multi-infeed analysis of the Brazilian transmission system and possible mitigation methods

CSEE Journal of Power and Energy Systems, 2018
The Brazilian transmission system is facing challenging problems with the distance between its generation areas and consumer centers that will be partly solved by the use of HVDC point-to-point systems.
Felipe R. V. de A. Pedroso, Marcos T. Bassini, Marco A. B. Horita, Jose A. Jardini, John F. Graham, Guijun Liu   +5 more
doaj   +1 more source

Monitoring contamination level on insulator materials under dry condition with a microwave reflectometer [PDF]

, 2016
Current techniques used for monitoring the levels of contamination on high voltage insulators, such as leakage current and infrared, are not effective in dry conditions since they require the surface of the insulator to be wetted by fog, rain or snow. If
Jiang, Y., Judd, M.D., McMeekin, S.G., Nekahi, A., Reid, A.J., Wilson, A.   +5 more
core   +1 more source

Correlation Between Evaporation Dynamics and Self‐Healing Characteristics in Metallised Polypropylene Films

High Voltage, Volume 11, Issue 1, Page 170-178, February 2026.
ABSTRACT The morphology and structure of electrodes play a pivotal role in determining the self‐healing performance and current‐carrying capacity of metallised biaxially oriented polypropylene (BOPP) films. An experimental setup replicating the industrial vacuum evaporation process and a custom‐designed self‐healing testing platform were specifically ...
Zhi‐Yuan Wu, Jian‐Tao Wang, Zhi‐Yuan Wang, Shao‐Long Zhong, Lei Huang, Zhi‐Min Dang, Wei Wang   +6 more
wiley   +1 more source