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Improved disturbance detection technique for power-quality analysis
(Institute of Electrical and Electronics Engineers, 2017)
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; ...
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; ...
Reference generator for voltage controlled power conditioners
(2011-12-28)
Voltage reference generation is an important issue on electronic power conditioners or voltage compensators connected to the electric grid. Several equipments, such as Dynamic Voltage Restorers (DVR), Uninterruptable Power ...
Determinación de la Respuesta Dinámica y Estacionaria de la Frecuencia frente a Desbalances de Potencia Producidos por Perturbaciones en la Red
(CENACE, 2016-01)
This paper proposes a new methodology for determining the transient and steady state frequency deviations produced by disturbances in the power system that modify the generation-load balance. Based on the equivalent frequency ...
Low-latitude ionospheric disturbance electric field effects during the recovery phase of the 19-21 October 1998 magnetic storm
(American Geophysical Union, 2003-12-23)
Low‐latitude ionospheric electric fields and currents are often strongly disturbed during periods of enhanced geomagnetic activity. These perturbations can last for several hours after geomagnetic quieting. We use incoherent ...
Desenvolvimento de modelo computacional para simulação de transiente hidráulico em linhas de recalque
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Urbana - PPGEUCâmpus São Carlos, 2020-07-31)
The phenomenon of hydraulic transient, also known as water hammer, can cause serious problems in hydraulic installations as well as disturbances to public supply. The underpressures and overpressures resulting from the ...
An analysis of frequency-dependent soil models: Influence on the transient responses
(2021-08-15)
Longitudinal impedance and transversal admittance of overhead transmission line (OHTL) are dependent on the ground which the line conductors are located. Several models in the literature consider the soil as an ideal ...
Detecção e localização de distúrbios transitórios em linhas de transmissão de energia utilizando sensores sem fio
(Universidade Federal de Minas GeraisUFMG, 2010-12-22)
This work presents an application of wireless sensors in power transmission lines to detect and locate impulsive transient disturbances caused by direct lightning strokes to the line and short circuits. Direct stroke and ...