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Mostrando ítems 41-50 de 150
Controladores discretos de tensão baseados no princípio do modelo interno aplicados a inversores trifásicos PWM
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2005-12-09)
This thesis contributes to the analysis, project and implementation of discrete-time controllers based on the Internal Model Principle, aiming to improve the performance of three-leg three-phase PWM inverters with insulating ...
Análise, projeto e desenvolvimento de um sistema UPS on-line com elevado fator de potência utilizando célula a combustível como fonte auxiliar de energiaAnalysis, design and development of an on-line UPS system with high power factor using cell a fuel as an auxiliary power source
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Elétrica, 2019)
Conversor Boost pré-regulador com funções CFP e CC-CC integradas para sistemas UPS utilizando célula a combustível como fonte auxiliar de energia
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Engenharia ElétricaEngenhariasUFU, 2016)
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 ...
INVERTERS
(ACADEMIC PRESS, 2001)
The main objective of static power converters is to produce an ac output waveform from a dc power supply. These are the types of waveforms required in adjustable speed drives (ASDs), uninterruptible power supplies (UPS), ...
Evaluation of the behavior of two artificial marshes installed in series with Phragmites australis for the treatment of domestic wastewaterEvaluación del comportamiento de dos pantanos artificiales instalados en serie con Phragmites australis para el tratamiento de aguas residuales domésticas
(Universidad Nacional Mayor de San Marcos, Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica, 2002)
Estudo do sincronismo de múltiplos osciladores acoplados: aplicação ao paralelismo de UPS
(Universidade Federal de Minas GeraisUFMG, 2009-04-16)
In this work stability analysis techniques were developed to investigate synchronization of interconnected and isolated multiple uninterruptible power supplies - UPS. The UPS systems were considered as nonlinear oscillators ...
Contribuição ao controle digital doparalelismo sem comunicação desistemas de energia ininterrupta
(Universidade Federal de Minas GeraisUFMG, 2009-09-18)
Uninterruptible Power Supplies are equipment employed to deliver continuous high quality power to critical loads, raising supply availability and reliability to levels much higher than those originally found in the public ...
Estratégia de controle e modos de operação para inversores multifuncionais
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de QuímicaPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2020-09-30)
Natural and climatic conditions impact the photovoltaic generation. Since such pheno-mena have a stochastic characteristic, the resources provided by a photovoltaic generatorconnected to the electrical grid are not ...