Results 31 to 40 of about 147,033 (306)

Transient stability analysis using potential energy indices for determining critical generator sets [PDF]

open access: yes, 2014
In this paper, we propose the enhancement of existing power system stability analysis techniques through the use of a proposed set of potential energy indices, applied for observing the separation of generators into critical sets during transient events.
Alamuti, MM, Saunders, CS, Taylor, GA
core   +1 more source

A Review of Fault Diagnosing Methods in Power Transmission Systems [PDF]

open access: yes, 2020
Transient stability is important in power systems. Disturbances like faults need to be segregated to restore transient stability. A comprehensive review of fault diagnosing methods in the power transmission system is presented in this paper.
Akmal, Muhammad   +3 more
core   +1 more source

Transient synchronization stability analysis of PV grid-tied systems considering whole LVRT process

open access: yesInternational Journal of Electrical Power & Energy Systems
Large-scale photovoltaic power generation makes the transient characteristics of power grid under severe faults particularly complicated. Different from the traditional synchronous generator, the transient stability condition and evolution law of the PV ...
Qihao Shen, Meng Zhan
doaj   +1 more source

Optimal discrimination between transient and permanent faults [PDF]

open access: yesProceedings Third IEEE International High-Assurance Systems Engineering Symposium (Cat. No.98EX231), 2002
An important practical problem in fault diagnosis is discriminating between permanent faults and transient faults. In many computer systems, the majority of errors are due to transient faults. Many heuristic methods have been used for discriminating between transient and permanent faults; however, we have found no previous work stating this decision ...
M. Pizza   +3 more
openaire   +5 more sources

Transient Voltage Unit Protection Based on Fault Information Fusion

open access: yesIEEE Access
Transient protection has the advantage of ultra-fast operation. However, traditional transient protection is susceptible to the influences of transitional resistance and the initial fault angle, resulting in issues with sensitivity and reliability under ...
Zhenwei Guo   +3 more
doaj   +1 more source

Comparison and analysis of the fault arc characteristics of flexible DC transmission lines

open access: yesThe Journal of Engineering, 2019
VSC-HVDC grid is one of the important development directions of the smart grid in the future. The arc characteristics of transient fault on the transmission line are the theoretical basis for determining reclosing time and reclosing strategy of DC ...
Botong Li   +3 more
doaj   +1 more source

Combined Time and Information Redundancy for SEU-Tolerance in Energy-Efficient Real-Time Systems

open access: yes, 2006
Recently the trade-off between energy consumption and fault-tolerance in real-time systems has been highlighted. These works have focused on dynamic voltage scaling (DVS) to reduce dynamic energy dissipation and on time redundancy to achieve transient ...
Al-Hashimi, Bashir M.   +4 more
core   +1 more source

Current–time characteristics of resistive superconducting fault current limiters [PDF]

open access: yes, 2012
Superconducting fault current limiters (SFCLs) may play an important role in power-dense electrical systems. Therefore, it is important to understand the dynamic characteristics of SFCLs.
Blair, Steven Macpherson   +2 more
core   +1 more source

Transient Voltage Information Entropy Difference Unit Protection Based on Fault Condition Attribute Fusion

open access: yesEntropy
Transient protection has the advantage of ultra-high-speed action, but traditional transient protection is susceptible to the influence of two fault condition attributes, namely, transition resistance and initial angle of fault, and there are the ...
Zhenwei Guo   +5 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Home - About - Disclaimer - Privacy