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Mostrando ítems 51-60 de 136
Método de comando para conversores multiníveis com reduzido número de comutações: paralelismo de conversores estáticos
(Universidade Federal de Minas GeraisUFMG, 2012-02-15)
Multi-level inverters are suitable for applications with medium voltage and high power due to its many advantages over conventional two level inverters. In these applications the switching losses on the main switches and ...
Desarrollo de un módulo SVPWM con un controlador en lazo cerrado para la Universidad Politécnica Salesiana
(2019-02)
The study of three-phase inverters with controlled pulse width modulations at the Salesian Polytechnic University is carried out in a theoretical manner and the concept cannot be verified in a practical way, so the student's ...
Implementação de um módulo inversor de fonte de tensão trifásico
(Universidade Tecnológica Federal do ParanáToledoBrasilEngenharia EletrônicaUTFPR, 2019-12-11)
Sustainability is a relevant topic on all fields of science. As a consequence, renewable energy resources have become more and more often in the electrical energy generation process. In this context, there is a need for ...
Comportamento harmônico de inversores de frequência
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia ElétricaUTFPR, 2017-11-20)
This work presents a study of the harmonic behavior of a full bridge frequency inverter connected to the distribution network and operating in a stand-alone system. It presents concepts of frequency inverter operation, ...
Deducción de pérdidas de potencia por conducción en inversores modulación senoidal de ancho de pulso, SPWMDeduction of power losses by conduction in sinusoidal pulse width modulation inverters, SPWM
(Centro de Información TecnológicaGrupo de Manejo Eficiente de la Energía (GIMEL)La Serena, Chile, 2022)
DC link fuzzy control for an active power filter, sensing the line current only
(IEEE, 1997)
A different approach for controlling a shunt active power filter is presented. The DC link is controlled with fuzzy logic, and the current generated for the filter to compensate harmonics and power factor is not sensed. ...
Contribuição ao controle de máquinas de vibração eletrodinâmicas
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2009-03-20)
This work presents contributions to the sinusoidal acceleration control of electrodynamic shakers applied in vibration testing. Considering the importance of sine tests to identify critical frequencies of operation and to ...
Inversor Push-Pull não isolado com autotransformadorNon-isolated Push-Pull inverter with autotransformer
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Elétrica, 2020)
Desenvolvimento de bancada didática para acionamento de motores de indução trifásicos com velocidade variável
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de ElétricaEngenharia ElétricaUTFPR, 2017-06-12)
This monography presents the development of a workbench to drive three-phase induction motors. The work starts from a contextualisation about the activation of variablespeed three-phase induction motors, following a review ...
Control system to balance internal currents of a multilevel current-source inverter
(Institute of Electrical and Electronics Engineers, 2018-03)
Multilevel current-source inverters have proved to be a high-performance option for industrial applications due to reliability, fault-tolerant capabilities, quasi soft switching, and the use of lower filter capacitor values. ...