Gleisson J. Franca

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High power IGCT-based converters are currently used in a wide range of drive applications. The protection of such converters against internal faults has been addressed in the technical literature, but the main focus has been on the solutions to disconnect the converter from the mains. In this paper, the short circuit current paths through the power devices(More)
Belt conveyors constitute an efficient and economical way for minerals and heavy load transportation from mines to their destination, they serve vital process units whose success depends on continuous operation. To meet important operational requirements, modern high capacity conveyor systems are equipped with medium voltage variable-speed induction motor(More)
This work presents the development and application of an electronically controlled harmonic mitigation device based on the insertion of active series harmonic impedances in the electric network. These active harmonic impedances are inserted at specific frequency (or frequencies). Important advantages of the proposed system are the reduced converter rating(More)
Belt conveyors constitute an efficient and economical way for minerals and heavy-load transportation from mines to their destination, serving vital process units whose success depends on continuous operation. To meet important operational requirements, modern high-capacity conveyor systems are equipped with medium-voltage variable-speed induction motor(More)
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