Examinando por Autor "Sala, Giacomo"

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    Research and Realization of High-Power Medium-Voltage Active Rectifier Concepts for Future Hybrid-Electric Aircraft Generation
    (Institute of Electrical and Electronics Engineers Inc., 2021-12) Trentin, Andrew; Sala, Giacomo; Tarisciotti, Luca; Galassini, Alessandro; Degano, Michele; Connor, Peter H.; Golovanov, Dmitry; Gerada, David; Xu, Zeyuan; La Rocca, Antonino; Eastwick, Carol N.; Pickering, Stephen J.; Wheeler, Patrick; Clare, Jon C.; Gerada, Chris
    In this article, we describe the research and development of a 3 kV active rectifier for a 4 MW aerospace generator drive system demonstrator. The converter is fed by a multiphase high-speed/high-frequency permanent magnet generator. The main aim of the work is to demonstrate for the first time the feasibility of an MW-class generator system meeting future hybrid-electric propulsion requirements. A concept with multiple and isolated three-phase systems feeding different power buses is proposed to meet the availability requirements. Multiple converters (one for each three-phase system) are connected in series and/or in parallel to achieve the rated power and dc-link voltage. This article describes the key design concepts and the development and testing of the converter to meet the challenging application requirements. Reduced power tests are carried out on a full-scale 4 MW converter prototype, validating the proposed design. The work represents a step forward in terms of voltage, power, and output frequency with respect to the state-of-the-art. © 1982-2012 IEEE.