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Impactos do uso de dispositivos móveis pessoais no consumo de energia elétrica na UTFPR - Câmpus Pato Branco
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de ElétricaEngenharia ElétricaUTFPR, 2017-11-10)
In the last decades, the mobile technologies have undergone an astonishing process of development, becoming an indispensable tool in the performance of the labor and personal activities. In this context, the BYOD movement ...
Optimal reconfiguration of electrical distribution systems using mathematical programming
(2014-01-01)
This paper presents a novel mixed integer nonlinear programming (MINLP) model for the reconfiguration problem of electrical distribution systems (EDS), aiming to reduce the active power losses of the system. Two linearization ...
Estudo e análise comparativa de topologias de filtros ativos de potência paralelos implementados em sistemas elétricos trifásicos a quatro fios
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2015-12-15)
This work deals with the study and comparative analyses of four Shunt Active Power Filters (SAPFs), which are implemented employing the Split-Capacitor (SC), Four-Leg (4L), Three Full-Brige (3FB) and Neutral-Point-Clamped ...
Metodologia de análise do colapso de tensão em tempo real considerando limites de potência ativa e reativa de geradores
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Sistemas de EnergiaUTFPR, 2017-09-29)
Due to the high energy demand and the high complexity of today's interconnected Electrical Power Systems (SEPs), it is becoming increasingly important for the system operator to know the current state of the SEP. In addition, ...
Estratégia de controle para inversores monofásicos conectados a redes com ampla faixa de parâmetros
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2018-04-20)
This work presents the design and analysis of a control strategy for single-phase inverters connected to the electric power distribution network. The strategy is designed to comply with the harmonic limits of the IEEE ...
Shunt active compensation based on the Conservative Power Theory current's decomposition
(2011-12-28)
Considering the operation of shunt active compensators, such as active power filters, this paper proposes possible compensation strategies by means of the recent formulation of the Conservative Power Theory (CPT). The CPT ...
Properties of voltage-gated Ca2+ currents measured from mouse pancreatic beta-cells in situ
(SOCIEDAD BIOLGIA CHILE, 2006)
We used the single-microelectrode voltage-clamp technique to record ionic currents from pancreatic beta-cells within intact mouse islets of Langerhans at 37 degrees C, the typical preparation for studies of glucose-induced ...
Efficiency and performance analysis of battery-ultracapacitor based semi-active hybrid energy systems for electric vehicles
(Institute of Electrical and Electronics Engineers, 2018-10)
This paper presents a comparative analysis of two semi-active configurations of Hybrid Energy Storage Systems for electric vehicles combining batteries and ultracapacitors. The analysis of a proper sizing of the battery ...
Multinodal Load Forecasting in Power Electric Systems using a Neural Network with Radial Basis Function
(Trans Tech Publications Ltd, 2011-01-01)
In this paper we present the results of the use of a methodology for multinodal load forecasting through an artificial neural network-type Multilayer Perceptron, making use of radial basis functions as activation function ...