Results 81 to 90 of about 31,830 (307)

Offline Diagnosis Method for Rotor Winding Internal Short Circuit Fault of Adjustable Speed Hydro-Generating Unit

Applied Sciences
The adjustable speed hydro-generating unit has a complex three-phase alternating current excitation structure. The existing rotor winding short circuit (RWSC) fault diagnosis methods are generally difficult to use to locate the fault location and ...
Jian Qiao, Kai Wang, Yikai Wang, Qinghui Lu, Xin Yin, Wenchao Jia, Xianggen Yin   +6 more
doaj   +1 more source

Operational control and protection implications of fault current limitation in distribution networks

, 2009
Rising short-circuit fault current levels is one of the problems associated with the increased presence of distributed generation (DG) in electrical networks.
Blair, S.M., Burt, Graeme M., Singh, N.K., Booth, C.D.   +3 more
core  

Contribuição à deteção de defeitos nos rotores de turboalternadores [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho tem como objetivo desenvolver métodos de detecção, localização e caracterização de defeitos em um ...
Tanno Iamamura, Bruno Akihiro, Iamamura, Bruno Akihiro Tanno   +1 more
core  

Integrated Field‐Free SOT Domain‐Wall Synapses and MTJ Stochastic Neurons for Hardware Boltzmann Machines

Advanced Functional Materials, EarlyView.
Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone, Meng Tang, Camelia Florica, Bin He, Jingkai Xu, Selma Amara, Georgian Melinte, Xixiang Zhang, Gianluca Setti   +8 more
wiley   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Applying a Robust Heteroscedastic Probabilistic Neural Network to Analog Fault Detection and Classification

, 2000
The problem of distinguishing and classifying the responses of analog integrated circuits containing catastrophic faults has aroused recent interest. The problem is made more difficult when parametric variations are taken into account. Hence, statistical
Chalk, C D, Zwolinski, M, Zwolinski, Mark, Yang, Zheng Rong, Williams, Alan Christopher, Yang, Z R, Williams, A C, Chalk, Chris D.   +7 more
core   +1 more source

Variation aware analysis of bridging fault testing [PDF]

, 2008
This paper investigates the impact of process variation on test quality with regard to resistive bridging faults. The input logic threshold voltage and gate drive strength parameters are analyzed regarding their process variation induced influence on ...
Ingelsson, Urban, Harrod, Peter, Bashir M. Al-Hashimi, Al-Hashimi, Bashir M., Urban Ingelsson, Peter Harrod   +5 more
core   +1 more source

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

Advanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi, Vishnu Arumughan, Mohamed Zbiri, Marcel Kröger, Ira Smal, Eero Kontturi, Roza Bouchal   +6 more
wiley   +1 more source

Inter-Turn Short Circuit Detection Based on Modulation Signal Bispectrum Analysis of Motor Current Signals

, 2013
Motor current signature analysis (MCSA) is a common practice in industry for finding motor faults. However, because of small modulations caused by faults and high noise contamination, it is difficult to quantify the modulation in measured signals which ...
Gu, Fengshou, Ball, Andrew, Ball, A. D., Gu, F., Alwodai, Ahmed, Yuan, X., Ahmed, M., Alwodai, A., Shao, Y.   +8 more
core  

Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability

, 2011
A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme, S.D.A. Fletcher, Norman, Patrick, Galloway, Stuart, Fletcher, Steven, P.J. Norman, G.M. Burt, S.J. Galloway   +7 more
core   +1 more source