Results 51 to 60 of about 202,483 (295)

Inverse time overcurrent protection for low-frequency wind farm transmission lines based on transient current components

International Journal of Electrical Power & Energy Systems
Low-Frequency Transmission Systems (LFTS) integrate the benefits of both high-voltage alternating current (HVAC) and high-voltage direct current (HVDC) transmission technologies. This combination makes LFTS a significant innovation for transmitting large
Yue Dai, Wei Zhao, Hongchun Shu
doaj   +1 more source

Power Quality Improvement and Low Voltage Ride through Capability in Hybrid Wind-PV Farms Grid-Connected Using Dynamic Voltage Restorer [PDF]

, 2018
© 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission.This paper proposes the application of a dynamic voltage restorer (DVR) to ...
Allaoui, Tayeb, Benali, Abdelkrim, Denai, Mouloud, Khiat, Mounir   +3 more
core   +2 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Service restoration strategy for active distribution networks considering source-load uncertainty

International Journal of Electrical Power & Energy Systems
Active distribution networks (ADNs) incorporate numerous distributed generations (DGs) and energy storage systems. When sudden faults occur in the system, service restoration can be enhanced through microgrid formation and network reconfiguration ...
Hongchun Shu, Hongfang Zhao, Xuezhuan Zhao   +2 more
doaj   +1 more source

A Method to Construct Early-Warning and Emergency Response System for Sulfur Hexafluoride Leakage in Substations

IEEE Access, 2020
Sulfur hexafluoride (SF6) gas leakage in populous urban areas, once occurring, can cause death from suffocation if its concentration largely exceeds 1000ppm and oxygen concentration is low than 19 vol-%.
Chunrui Liu, Wunan Gu, Lei Shi, Feng Wang   +3 more
doaj   +1 more source

A Novel Wind Turbine Concept Based on an Electromagnetic Coupler and the Study of Its Fault Ride-through Capability [PDF]

, 2013
This paper presents a novel type of variable speed wind turbine with a new drive train different from the variable speed wind turbine commonly used nowadays.
Braulio Barahona, Chen, Chen, Hansen, Iov, Jianyun Chai, Krause, Larsen, Nicolaos Cutululis, Rui You, You   +10 more
core   +2 more sources

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis

Scientific Reports
Lightning represents the primary threat to power grids, with approximately 80% of natural occurrences being multi-lightning strikes, which have been extensively studied and confirmed to pose even more severe hazards.
Yutao Tang, Hongchun Shu, Kai He, Yue Dai, Yu Kuang, Yiming Han, Weijie Lou   +6 more
doaj   +1 more source

Defense strategy against cyber-physical coordinated false data injection attacks in cyber-physical power systems

Results in Engineering
With the deep integration of cyber-physical power systems (CPPS), cyber-physical coordinated false data injection attacks (FDIAs) have emerged as a new risk threatening the security of power grids.
Hongchun Shu, Hongfang Zhao, Yongyin Yang, Yutao Tang   +3 more
doaj   +1 more source

Augmentation of DFIG and PMSG Wind Turbines Transient Performance Using Different Fault Current Limiters

Energies, 2022
The technology of variable speed wind turbines is very promising in renewable power generation. It is imperative for wind turbines to gain control after grid disturbances and contribute to the stability of power grids as part of the requirements of grid ...
Kenneth E. Okedu
doaj   +1 more source