Results 71 to 80 of about 1,539,180 (166)

Analysis of Out‐of‐Step Oscillation Centre Migration Under Increasing Renewable Energy Penetration in Large‐Scale Power Systems

IET Smart Energy Systems, Volume 2, Issue 3, Page 181-190, September 2026.
Increasing renewable penetration causes out‐of‐step oscillation centres to migrate away from renewable integration points. Two distinct migration modes—continuous drift and large‐range jumps with instability‐mode changes—are identified, providing guidance for adaptive splitting protection in future power systems.
Changsheng Chen, Yong Tang, Wuzhi Zhong, Fengying Zhang, Lixin Li, Zhengwei Shen, Ming Kong, Guozheng Wang, Yize Li   +8 more
wiley   +1 more source

A Review of Overcurrent Protection in Smart Grids Under Cyber‐Physical Threats With a Cyber‐Physical Evaluation Framework

Energy Science &Engineering, Volume 14, Issue 8, Page 3948-3973, August 2026.
By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali, Anas AlMajali, Naser Naily, Hassen Loukil, Salah AbuGhalyon, William Holderbaum, Abdelaziz Salah Saidi   +6 more
wiley   +1 more source

Prediction of radio interference from HVDC transmission lines based on corona discharge characteristics

High Voltage, 2020
Many research works have proved that it is viable to predict the radio interference (RI) of high-voltage alternating current transmission lines by corona cage test. However, it is uncertain whether the same method can be adopted for RI prediction of high-
Caowei Huang, Han Yin, Pengfei Xu, Bo Zhang, Jinliang He, Jianben Liu   +5 more
doaj   +1 more source

Energy transmission by HVDC systems: theory and analytical simulations

, 2023
reservedLa trasmissione di energia tramite sistema HVDC (High Voltage Direct Current) è una tecnologia utilizzata per il trasferimento efficiente di grandi quantità di energia elettrica su lunghe distanze.
NICHIFOREL, EMANUEL
core  

Comparison of DigSILENT, Matlab PST and PSAT for steady state and stability studies on HVAC-HVDC systems [PDF]

, 2012
Includes abstract.Includes bibliographical references.It is said that the electric power system is the most complex system ever built by mankind. Over the past few decades, many software packages focusing on the study of this complex system have been ...
Ubisse, Albino Virgílio
core   +1 more source

The NEWGEN European Union Research Project for a New Generation of HVDC Cable Systems

, 2023
This paper illustrates the European Union NEWGEN research project, entitled 'New Generation of HVDC Insulation Materials, Cables and Systems', with 10 partners over 5 EU Countries. The objective of NEWGEN is to develop and proof new insulation materials,
Ciroth A., Wurm F., Vergine C., Caprara A., Kannampuzha M., Paajanen M., Harjuhahto J., Lahti K., Rytoluoto I., Mazzanti G., Leproux A.   +10 more
core   +1 more source

DC protection coordination for multi‐terminal HB‐MMC‐based HVDC grids

IET Renewable Power Generation
Fast progress of High Voltage Direct Current (HVDC) technology has been considerable over the past decades. Emerging Modular Multilevel Converter (MMC) provides power systems with promising solutions to integrate large‐scale renewable energy sources, as ...
Seyed Hassan Ashrafi Niaki, Zhe Chen, Birgitte Bak‐Jensen, Kamran Sharifabadi, Zhou Liu, Shuju Hu   +5 more
doaj   +1 more source

Investigation of Leakage Current Behaviour on Artificially Contaminated Insulators Under Superimposed HVDC Voltage Stress and Hybrid HVDC/HVAC Transmission Conditions

Energies
High-voltage direct current (HVDC) transmission systems are increasingly used for long-distance power transmission and the integration of renewable energy sources. In such systems, outdoor insulators are exposed to combined electrical stresses, including
Julian Hanusrichter, Frank Jenau
doaj   +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

Transient overvoltage on overhead metal return lines of ±500 kV MMC-HVDC grid

The Journal of Engineering, 2018
The ±500 kV half-bridge modular multilevel converter-high-voltage DC (MMC-HVDC) grid project with overhead transmission line is under construction in China at present.
Huiwen He, Xiaolan Li, Ying Lou, Lei Wang, Peihong Zhou   +4 more
doaj   +1 more source