Results 71 to 80 of about 8,930,858 (215)

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

Lightweight Deep Learning for Identification and Suppression of Subway Interference in Geomagnetic Observations

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Geomagnetic observatory networks provide continuous data for space weather monitoring, field modeling, and solid Earth geophysics. Rapid urbanization, however, has introduced pervasive electromagnetic interference from subway traction systems, degrading data quality at a growing number of urban stations.
Qiaoling Huo, Xizhen Wang, Xinxin Ma, Suqin Zhang   +3 more
wiley   +1 more source

Availability Assessment Methods for HVDC Systems: a Review

, 2019
In this paper, an overview of the most effective availability assessment methods, applicable to HVDC (High Voltage Direct Current) transmission systems, is presented.
Sebastian Dambone Sessa, Antonio Chiarelli, Angelo L'Abbate, Sessa, Sebastian Dambone, Benato, Roberto, L'Abbate, Angelo, Chiarelli, Antonio, Roberto Benato   +7 more
core   +1 more source

The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability [PDF]

, 2013
This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Merlin, Michael MC, Green, Tim C, Critchley, Roger, Crookes, Will, Hassan, Fainan, Mitcheson, Paul D, Trainer, David R   +6 more
core   +1 more source

Switching overvoltages and polarity reversal in presence of HVDC circuit breakers

, 2023
The recent development of High Voltage Direct Current circuit breakers (HVDC CBs) prototypes may introduce many potential advantages for HVDC links in terms of flexibility and possible meshing.
Spezie R., Palone F., Buono L., Pizzimenti F., Vacante P., Lauria S., Papi L., Tresso G., Capponi F. G.   +8 more
core   +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

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

Field Studies on the Influence of High‐Voltage Direct Transmission Underground Cables on Soils Along the SuedLink Route in Southwest Germany

Journal of Plant Nutrition and Soil Science, Volume 189, Issue 4, Page 479-498, August 2026.
During regular operation of the SuedLink at a load ≤75 %, the average increase in temperature in the plowing horizon is expected to be less than 1.6°C in the soils along the route in Southwest Germany. ABSTRACT Background The SuedLink was planned as a high‐voltage direct‐current underground cable route. The construction itself is a massive intervention
Joachim Ingwersen, Alexander Schade, Andreas Lehmann, Jonas Trenz, Maja Schreiber, Christoph Drefke, Harald Schramm, Christian Bidlingmaier, Simone Graeff‐Hönninger, Thilo Streck, Karl Wieland   +10 more
wiley   +1 more source

MMC Stored Energy Participation to the DC Bus Voltage Control in an HVDC Link [PDF]

, 2016
The modular multilevel converter (MMC) is becoming a promising converter technology for HVDC transmission systems. Contrary to the conventional two- or three-level VSC-HVDC links, no capacitors are connected directly on the dc bus in an MMC-HVDC link ...
SAMIMI, Shabab, COLAS, Frédéric, BELHAOUANE, Mohamed Moez, GUILLAUD, Xavier, DELARUE, Philippe, GRUSON, Francois   +5 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