Buscar
Mostrando ítems 91-100 de 3074
Comparative study of inversion-based and observer-based approaches for fault diagnosis in DC-DC converters
(2017-07-07)
Recently, model-based approaches have been proposed for fault diagnosis as an emerging alternative to traditional techniques. Particularly, the inversion-and observer-based were proposed for fault diagnosis as successful ...
Nonlinear Dynamic Average Model of a DC-DC Converter
(Institute Of Electrical And Electronics Engineers, 2014-08)
A nonlinear dynamical average model of a dc-dc converter is presented. The converter under study has a particular feature. In this converter, classical average analysis cannot be applied because the ripple cannot be neglected ...
Open Transistors Fault-Tolerant Schemes of three-Phase Dual Active Bridge DC-DC Converters
(Institute of Electrical and Electronics Engineers, 2021-03)
This work proposes fault-tolerant schemes for open-transistor faults applied to three-phase dual active bridge converters (TPDABC), using different transformers: star-star, delta-delta, and delta-star. The proposal consists ...
Inversor PWM trifásico para sistemas de backup de energia
(Universidade Tecnológica Federal do ParanáPato Branco, 2013-04-24)
This work presents the design of an uninterruptible power supply for three-phase, three wire systems. The modeling, output filter and control system design are also presented. It also introduces the basics of the space ...
Estudo do controle digital de um retificador boost trifásico bidirecional através de modulação vetorial
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Engenharia de Controle e AutomaçãoUTFPR, 2018-12-03)
The rectifiers are Power Electronics devices commonly used in daily life and in the industry. They are responsible for convert the alternate current (AC) into direct current (DC). Yet, either controlled or non-controlled ...
Conversor CC-CC de elevado ganho autogrampeado baseado na configuração boost empregando indutor acoplado
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2017-12-18)
This work presents a new topology of a DC-DC converter based on a boost configuration employing coupled inductor. The main features of the proposed circuit are high voltage gain, high efficiency and the absence of a clamping ...
Conversores CA-CC multiníveis do tipo boost com elevado fator de potência e operação em condução descontínua: estudo de topologias monofásicas, trifásicas, não isolados e isoladas
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2020-03-31)
This work presents the study and development of new topologies based on interleaved boost operating in discontinuous conduction mode. Firstly, are proposed two new rectifiers, one single-phase and another three-phase, where ...
Harmonic content identification based on neural method for single phase power systems
(2009-12-01)
An alternative method is presented in this paper to identify the harmonic components of non-linear loads in single phase power systems based on artificial neural networks. The components are identified by analyzing the ...