Results 31 to 40 of about 357,530 (342)

Extended properties of nonlinear power system models that are symmetrically configured in the narrow sense

open access: yesInternational Journal of Electrical Power & Energy Systems
Three-phase circuits that are Symmetrically Configured in the Narrow Sense (SCNS) have been defined in previous works as circuits which dq0 dynamic model does not depend on the transformation’s reference angle.
Elior Segev   +4 more
doaj   +1 more source

Application of Magnitude and Phase Angle to Boundary Area-Based Algorithm for Unbalance Relay Protection Scheme in 115-kV Capacitor Bank

open access: yesIEEE Access, 2021
Identification of fault locations in capacitor banks is still under development. Although, faults in capacitor banks can be detected by an unbalance relay, it cannot identify the fault location.
Praikanok Lertwanitrot   +1 more
doaj   +1 more source

Fault Ride through Capability Analysis (FRT) in Wind Power Plants with Doubly Fed Induction Generators for Smart Grid Technologies

open access: yesEnergies, 2020
Faults in electrical networks are among the key factors and sources of network disturbances. Control and automation strategies are among the key fault clearing techniques responsible for the safe operation of the system. Several researchers have revealed
Aphrodis Nduwamungu   +3 more
doaj   +1 more source

Analysis of drawbacks and constraints of classification algorithms for three-phase voltage dips [PDF]

open access: yes, 2018
Voltage events are one of the most common and harmful disturbances of power electric systems. Voltage dips, swells and interruptions are included under this heading.
Carrica, Daniel Oscar   +5 more
core   +1 more source

A Symmetric Free Energy Based Multi-Component Lattice Boltzmann Method

open access: yes, 2007
We present a lattice Boltzmann algorithm based on an underlying free energy that allows the simulation of the dynamics of a multicomponent system with an arbitrary number of components. The thermodynamic properties, such as the chemical potential of each
A. J. Wagner, Qun Li, R. Jones
core   +1 more source

Photon-induced two-nucleon knockout reactions to discrete final states [PDF]

open access: yes, 1998
Cross sections and photon asymmetries of the exclusive 16O(\gamma,pn)14N and 16O(\gamma,pp)14C knockout reactions are calculated for transitions to the low-lying discrete final states of the residual nucleus in the photon-energy range between 100 and 400
Giusti, C., Pacati, F. D.
core   +2 more sources

Fault-Tolerant Controller Applied to a Wind System Using a Doubly Fed Induction Generator

open access: yesWind
Wind systems are sustainable and economical options for producing electrical energy. These systems efficiently manage the power flow by maximizing wind power and consuming reactive power from the grid.
Onofre Morfín   +5 more
doaj   +1 more source

Performance Investigation of Three-Phase Three-Switch Direct PWM AC/AC Voltage Converters

open access: yesIEEE Access, 2019
Reducing the number of active switches is substantial for obtaining a simple, reliable, high-efficiency, and cost-effective AC/AC voltage converter. In this paper, two topologies of three-phase direct PWM AC/AC voltage converter are proposed.
Said A. Deraz   +4 more
doaj   +1 more source

Quantization of the conformal arclength functional on space curves [PDF]

open access: yes, 2017
By a conformal string in Euclidean space is meant a closed critical curve with non-constant conformal curvatures of the conformal arclength functional. We prove that (1) the set of conformal classes of conformal strings is in 1-1 correspondence with the ...
Musso, Emilio, Nicolodi, Lorenzo
core   +2 more sources

Study of Special Unbalanced Load Modes of New Double-Autotransformer of the Flexible Alternating Current Link [PDF]

open access: yesProblems of the Regional Energetics
The purpose of the work is study of special asymmetric modes of new three-phase autotrans-former device for flexible connection of alternative current power systems.
Bosneaga V., Suslov V.
doaj   +1 more source

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