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Utilização de índices de estabilidade transitória para a avaliação de segurança dinâmica
(2003-12-01)
Indices that report how much a contingency is stable or unstable in an electrical power system have been the object of several studies in the last decades. In some approaches, indices are obtained from time-domain simulation; ...
Transient effectiveness factors in the dynamic analysis of heterogeneous reactors with porous catalyst particles
(Elsevier, 2015-12)
A model to calculate the actual transient effectiveness factor in spherical porous catalyst particles in gradientless reactors, where a first order reaction takes place under isothermal conditions, linear equilibrium ...
Transient wave propagation phenomena at visco-elastic half-spaces under distributed surface loadings
(Latin Amer J Solids StructuresSao PauloBrasil, 2012)
Escoamentos de retorno de umidade na Bacia do Prata
(Universidade Federal de Santa MariaBRMeteorologiaUFSMPrograma de Pós-Graduação em Meteorologia, 2015-05-22)
This study evaluated the seasonality of moisture supply on part of the Bacia do Prata (BP) in
the context of transient anticyclones east of the Andes, phenomenon that receives the name
of moisture return (RU). This ...
Frequency-dependent multiconductor line model based on the Bergeron method
(2015-06-29)
A new multiconductor transmission line model is proposed based on the method of characteristics. The conventional Bergeron model is characterized by the line representation using constant lumped parameters. The novel content ...
Sparse matrices for transient simulations with computing memory reduction
(2020-06-01)
Modified numerical integration methods and modelling have been analysed for application to simulations of electromagnetic transient phenomena in transmission lines. Both objectives are considered: minimize numerical errors ...
Robust sparse network equivalent for large systems: Part I - Methodology
(Ieee-inst Electrical Electronics Engineers IncPiscatawayEUA, 2004)
Boundary Control of Full-Bridge ZVS: Natural Switching Surface for Transient and Steady-State Operation
(Institute of Electrical and Electronics Engineers, 2014-02)
This paper presents the use of a high-performance boundary controller for the full-bridge zero-voltage-switching topology. An enhanced dynamic response is obtained by employing the natural switching surface (SS), which is ...
A Luminous Transient Event in a Sample of WISE-selected Variable AGNs
(2018)
Recently Assef et al. presented two catalogs of active galactic nucleus (AGN) candidates over 30,093 deg(2) selected from the Wide-field Infrared Survey Explorer (WISE) observations. From their most reliable sample, Assef ...