Results 41 to 50 of about 36,891 (314)

Fault Diagnosis for Modular Multilevel Converter Switching Devices via Multimodal Attention Fusion

IEEE Access, 2023
Modular multilevel converters (MMCs) have been widely applied in high voltage direct current (HVDC) transmission project, and security is their fundamental issue.
Longzhang Ke, Guozhen Hu, Yuqing Yang, Yi Liu   +3 more
doaj   +1 more source

Recent advances in the understanding of fault zone internal structure: a review

, 2008
It is increasingly apparent that faults are typically not discrete planes but zones of deformed rock with a complex internal structure and three-dimensional geometry.
WIBBERLEY C. A. J, GRAHAM Y, DI TORO, GIULIO   +2 more
core   +1 more source

Deep Learning-Based Classification of Transformer Inrush and Fault Currents Using a Hybrid Self-Organizing Map and CNN Model

Energies
Accurate classification between magnetizing inrush currents and internal faults is essential for reliable transformer protection and stable power system operation. Because their transient waveforms are so similar, conventional differential protection and
Heungseok Lee, Sang-Hee Kang, Soon-Ryul Nam   +2 more
doaj   +1 more source

The internal structure, mechanics, and fluid flow properties of low-angle normal faults a case study from the island of Elba, Italy [PDF]

, 2009
Low-angle normal faults have been extensively documented in areas of regional extension, in both continental and oceanic lithosphere, but their existence as seismically active structures remains controversial.
Smith, Steven A. F., Smith, Steven A F
core  

Bispectrum of stator phase current for fault detection of induction motor

, 2009
A number of research studies has shown that faults in a stator or rotor generally show sideband frequencies around the mains frequency (50 Hz) and at higher harmonics in the spectrum of the Motor Current Signature Analysis (MCSA).
Gu, Fengshou, Ball, Andrew, Gu, Fengshu, Sinha, Jyoti K.; id_orcid, Treetrong, Juggrapong, Sinha, Jyoti K.   +5 more
core   +1 more source

From model, signal to knowledge: a data-driven perspective of fault detection and diagnosis [PDF]

, 2013
This review paper is to give a full picture of fault detection and diagnosis (FDD) in complex systems from the perspective of data processing. As a matter of fact, an FDD system is a data-processing system on the basis of information redundancy, in which
Dai, Xuewu, Gao, Zhiwei
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

A Dual Deep Neural Network Approach for Discriminating Internal Faults and Inrush Currents in Transformers Under CT Saturation

IEEE Access
The dependability and security of transformer differential protection can be compromised by current transformer (CT) saturation, which distorts current measurements and may lead to the maloperation of protective relays.
Sopheap Key, Soupheng Leap, Seong-Min Yoon, Heungseok Lee, Soon-Ryul Nam   +4 more
doaj   +1 more source

Probabilistic sensitivity analysis of two suspension bridges in Istanbul, Turkey to near- and far-fault ground motion [PDF]

Natural Hazards and Earth System Sciences, 2012
The aim of this paper is to compare the near-fault and far-fault ground motion effects on the probabilistic sensitivity dynamic responses of two suspension bridges in Istanbul.
Ö. Çavdar
doaj   +1 more source

Internal fault additional network.

, 2020
Internal fault additional network.
Xiaotao Hu (8626665), Qiaomei Wang (1710562), Hao Wu (65943), Kunjian Yu (8626662), Maoxia Ran (8626668)   +4 more
core   +1 more source