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Conversor híbrido com capacitores flutuantes e pernas magneticamente acopladas
(Universidade Federal de Santa Maria, 2019-08-23)
This work presents a general analysis for multilevel converters with flying capacitors and parallel
legs. For each converter leg, multilevel structures containing flying capacitors connected in parallel
via coupled ...
Metodologia para análise de transitórios eletromagnéticos durante paralelismo em redes de distribuição com presença de geração distribuída
(Universidade Federal de Santa Maria, 2019-07-29)
The parallelism of radial feeders of primary distributions networks is a technique that can be used to change the topology of the network under normal operating conditions, scheduled maintenance, or even in contingency ...
Abordagem de conversores ressonantes classe e quadrático com aplicação de PSO
(Universidade Federal de Santa Maria, 2021-05-21)
This dissertation presents the application of the particle swarm optimization algorithm (PSO) to obtain design parameters for the inverting step of a quadratic Class E converter. This converter can be designed by modeling ...
Contribuições ao controle aplicado a uma topologia híbrida para regulação de tensão em geradores de indução autoexcitados
(Universidade Federal de Santa Maria, 2017-04-24)
This doctoral thesis presents contributions to control applied to hybrid topology
for voltage regulation of self-excited induction generators in stand-alone microgeneration
systems. The generator system considers a ...
Análise do impacto logístico no setor de transporte de cargas: estudo de caso com a introdução de caminhões elétricos
(Universidade Federal de Santa Maria, 2021-04-09)
Efficient and economical cargo transportation is an important factor to contribute to the development of the economy, competitiveness in the market and the reduction of expenses in the logistics of companies. Electric ...
Modelagem geométrica do conversor buck-boost não-inversor usado na interface de nanorrede CC residencial
(Universidade Federal de Santa Maria, 2021-06-29)
This dissertation presents the control system for a DC-Nanogrid based on the DCBus
Signalling technique. Converter principle of operation is described and its control
loops are designed. Modulation geometric approach is ...
Controle hierárquico distribuído com separação de atribuições para paralelismo de UPS
(Universidade Federal de Santa Maria, 2021-06-19)
This work presents a distributed hierarchical control strategy applied to the parallelism
of UPSs. A dynamic approach with separation of concerns is proposed for the
secondary control, where a named grid forming inverter ...
Proposta de índice para a avaliação da coordenação e seletividade de esquemas proteção de sobrecorrente em sistemas aéreos de distribuição
(Universidade Federal de Santa Maria, 2021-02-12)
Overhead distribution systems are constantly exposed to external agents that may negatively influence their operation. In this sense, protection in distribution plays an essential role in maintaining the correct functioning ...
Análise da estabilidade e controle de conversores CC-CC conectados em cascata
(Universidade Federal de Santa Maria, 2020-08-28)
The need to use renewable energy sources has driven the use of distributed energy generation systems. This type of system is formed by several interconnected stages that can consist of filters, converters, inverters, among ...
Modelagem eletrotérmica e caracterização de elementos parasitas de placas de circuito impresso de conversores estáticos CC/CC
(Universidade Federal de Santa Maria, 2021-08-11)
This doctoral thesis presents the development of an analythical method to characterize
the parasitic elements and surface temperatures in a synchronous boost power converter.
Initially is presented the bibliography review ...