Search Results - "Beltrame, R. C."

Thermal-hydraulic model for temperature prediction on oil-directed power transformers by Oliveira, M.M., Medeiros, L.H., Kaminski, A.M., Falcão, C.E.G., Beltrame, R.C., Bender, V.C., Marchesan, T.B., Marin, M.A.

“…The temperatures of a power transformer have direct influence on the windings insulation deterioration, determining how long the equipment will be able to…”
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Simplified Zero-Voltage-Transition Circuits Applied to Bidirectional Poles: Concept and Synthesis Methodology by Beltrame, Rafael Concatto, Zientarski, Jonatan Rafael Rakoski, da Silva Martins, Mário Lúcio, Pinheiro, José Renes, Hey, Hélio Leães

“…This paper proposes the concept and the synthesis methodology of simplified zero-voltage-transition (ZVT) circuits applied to bidirectional pulsewidth…”
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D-STATCOM applied to single-phase distribution networks: Modeling and control by Enderle, T. P., da Silva, G. S., Fischer, C., Beltrame, R. C., Schuch, L., Montagner, V. F., Rech, C.

“…This paper proposes a digital control system for a voltage-controlled D-STATCOM applied to single-phase low voltage distribution networks. This system is…”
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Hybrid AC Power Source Based on Modular Multilevel Converter and Linear Amplifier by da Silva, Guilherme Sebastiao, Concatto Beltrame, Rafael, Schuch, Luciano, Rech, Cassiano

“…This paper presents a hybrid amplifier for an ac power source (ACPS). The topology is composed of a modular multilevel converter (MMC), operating as main…”
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AC power source based on series-connection between modular multilevel converter and linear power amplifier by da Silva, G. S., Beltrame, R. C., Martins, M. L. S., Schuch, L., Hey, H. L., Rech, C.

“…This paper proposes a hybrid topology for ac power source (ACPS) application composed of a modular multilevel converter (MMC), operating as main amplifier, and…”
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Comparison between integrated and simplified ZVT topologies for three-phase voltage-source inverters by Beltrame, R.C., Candido, D.B., Pinheiro, J.R., Hey, H.L., da Silva Martins, M.L.

“…This paper presents a comparison between the integration and simplification principles of zero-voltage-transition (ZVT) circuits applied to three-phase…”
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AC power source based on series-connection between cascaded PWM multilevel inverter and linear power amplifier by Beltrame, R. C., Desconzi, M. I., da Silva Martins, M. L., Rech, C., Hey, H. L.

“…This paper proposes a hybrid ac power source by associating a symmetrical cascaded PWM multilevel inverter (main amplifier) with a low-voltage and low-power…”
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Hybrid power amplifiers - a review by Beltrame, R. C., da Silva Martins, M. L., Rech, C., Hey, H. L.

“…With the aim of synthesizing high-fidelity voltage waveforms without penalizing the system efficiency, several works have proposed hybrid power amplifiers…”
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Proposal of a series configuration hybrid ac power source by Beltrame, R. C., Desconzi, M. I., Rech, C., Hey, H. L., da Silva Martins, M. L.

“…With the aim of synthesizing high quality voltage waveforms without penalizing the system efficiency, this paper proposes to implement a hybrid ac power source…”
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Loss and thermal analysis of semiconductor devices applied to an electric circuit simulator by Cazakevicius, F. E., Krug, R. P., Figueira, H. H., Beltrame, R. C., Hey, H. L.

“…The aim of this paper is to create an education tool to estimate the losses and the dynamic behavior of the junction temperature of a semiconductor device, to…”
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Comparative analysis of ZCZVT variable speed drives by Gazzoni, J. C., da S Martins, M. L., Beltrame, R. C., Hey, H. L.

“…This paper presents a comparative analysis between Zero-Current and Zero-Voltage Transition (ZCZVT) IGBT-based inverters applied to variable speed drives. The…”
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Simplified zero-voltage-transition circuits applied to bidirectional poles: Concept and synthesis methodology by Beltrame, R.C., Zientarski, J.R.R., da Silva Martins, M.L., Pinheiro, J.R., Hey, H.L.

“…In order to eliminate the synchronous-switching requirements imposed by zero-voltage-transition (ZVT) integrated multipole topologies, this paper proposes the…”
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