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An improved fuzzy logic control-based MPPT method to enhance the performance of PEM fuel cell system
(2022-03)
Recently, wide installations of photovoltaic (PV) systems have been achieved in the electrical power systems. However, fluctuated output power of the PV generation and/or fluctuated load demands represent critical factors ...
Implementação de conversor CC-CC com alto ganho de tensão e saída em corrente
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de EletrotécnicaEngenharia ElétricaUTFPR, 2015-07-01)
The photovoltaic power generation stands out in the search for renewable electricity sources less harmful to the environment and especially closer to the largest energy consumers. This is due to the fact that photovoltaic ...
Optimization of the TEGs Configuration (Series/Parallel) in Energy Harvesting Systems with Low-Voltage Thermoelectric Generators Connected to Ultra-Low Voltage DC-DC Converters
(Mdpi, 2020-05-01)
Solar radiation and human activity generate ubiquitous temperature gradients that could be harvested by thermoelectric generators (TEGs). However, most of these temperature gradients are in the range of very few degrees ...
Estudo de controladores inteligentes para rastreio do ponto de máxima potência de um sistema fotovoltaico
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO, 2022-04-07)
Photovoltaic (PV) systems have shown growth in the world's electrical matrix. However, the non-linear nature of PV arrays and their strong dependence on ambient conditions decrease the maximum power they can produce and, ...
Análise comparativa de inversores multiníveis com células H-bridge conectadas em série
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2006-04-20)
This Master Thesis presents a methodology to compare different topologies and configurations of multilevel systems applied to drive medium voltage induction motors. Initially, it presents the input and output parameters ...
Conversores CC-CC boost-flyback de elevados ganho e rendimento
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de EletrônicaEngenharia EletrônicaUTFPR, 2016-06-24)
This work aims to analyze solutions for processing energy from renewable sources that require DC-DC stage, high gain and efficiency. Such solutions are based on the integration of the boost converters and flyback, resulting ...
Multicriteria optimization of Brayton-like pumped thermal electricity storage with liquid media
(Elsevier, 2021)
A multi-objective and multi-parametric optimization of a Pumped Thermal Electricity Storage system based on Brayton cycles is presented by the calculation of different Pareto fronts and the associated Pareto optimal sets ...
Conversor de alto ganho auto grampeado baseado no conversor boost half bridge integrado
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de EletrônicaEngenharia ElétricaUTFPR, 2019-11-29)
A non-isolated high step-up ratio dc-dc converter based on the integrated boost-halfbridge circuit employing voltage multipliers and coupled inductors is proposed in this paper. As main features, the proposed topology ...
Análise de compensação capacitiva para a máxima transferência de energia com acoplamento indutivo
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2020-01-20)
This work deals with the study of a wireless power transmission system using loosely magnetically coupled coils. An analysis is made of the parasitic effects of the components in an equivalent circuit using a single frequency ...