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Robust fault diagnosis in power distribution systems based on fuzzy ARTMAP neural network-aided evidence theory
(Inst Engineering Technology-iet, 2012-11-01)
The present study proposes a methodology for the automatic diagnosis of short-circuit faults in distribution systems using modern techniques for signal analysis and artificial intelligence. This support tool for decision ...
Methodologies for multiterminal AC-DC transmission grids: power flow, state estimation and frequency tracking
(Universidad Michoacana de San Nicolás de Hidalgo, 2019-08)
The aim of this thesis is the proposal of a power flow and a static state estimation approaches suitable for electric power transmission systems containing fully controlled multi-terminal high voltage direct current networks. ...
Metodología de cobro para los servicios auxiliares brindados por la subestación Garita
(Instituto Tecnológico de Costa Rica, 2018)
Currently, the Costa Rican Electricity Institute (ICE), in the substations, provides auxiliary services corresponding to direct current (130 V) and alternating current (120/208 V). These auxiliary services were not previously ...
Wavelet-based analysis and detection of fault-induced transients in HVDC systems
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO, 2018-08-01)
A fast and accurate detection of the transients is essential to ensure a reliable protection
system capable to act with high-speed. In this research, a theoretical foundation regarding the
high-voltage direct current ...
Metodologia para representação de sistemas de transmissão em corrente contínua multiterminais no problema de fluxo de potência
(Universidade Federal de Juiz de ForaBrasilFaculdade de EngenhariaPrograma de Pós-graduação em Engenharia ElétricaUFJF, 2016)
Diseño, implementación y control de un conversor Diode-Clamped multinivel operando en modo rectificador de potencia
(Universidad Autónoma de OccidenteIngeniería Electrónica y TelecomunicacionesDepartamento de Automática y ElectrónicaFacultad de Ingeniería, 2020-10-23)
La presente propuesta de trabajo de investigación plantea el estudio del convertidor Neutral Point Clamped operando como convertidor AC/DC, se plantea una estrategia de control en dos marcos de referencia diferentes dq0 y ...
Validação de metodologia para o cálculo de tensões induzidas por descargas atmosféricas indiretas na fiação de uma usina fotovoltaica
(Universidade Federal de Minas GeraisUFMG, 2016-03-29)
The recent growth of large photovoltaic power plants in Brazil in areas with high rate of lightning has raised concerns about protection of its equipment. Although the effect of direct flashes can be mitigated by conventionally ...
Contraste entre propriedades optoeletrônicas em estruturas de tunelamento ressonante n-i-n baseadas em GaAs
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Física - PPGFCâmpus São Carlos, 2019-05-15)
Resonant Tunneling Diodes (RTDs) are semiconductor devices usually composed of two barrier structures embedding a single quantum well (QW) and highly doped layers in its extremities. Under an applied bias voltage, the ...