Braz de Jesus Cardoso Filho

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The objective of the present work is to assess the impact of improvements in standard characterization parameters of electrical steels, typically found in manufacturer catalogs (B<sub>50</sub> and W<sub>10/400</sub>), in the performance of high-speed electrical motors. The electrical steel manufacturer has to deal with numerous process variables and long(More)
Mine hoist systems play a vital role in gold ore transportation. They are the connection between the underground mine and the beneficiation plant. As a result, any hoist system interruption compromises the production. In this paper, it is proposed a mission critical analysis and design methodology for power converters in order to achieve proper reliability(More)
This paper deals with the power quality improvements that can be achieved in mining industries by the employment of a high power active front end. A three-level neutral-point-clamped rectifier with low harmonic distortion and high power factor is chosen alternatively to diode rectifiers. A constraint on this class of converters is its lower switching(More)
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