Research and Realization of High-Power Medium-Voltage Active Rectifier Concepts for Future Hybrid-Electric Aircraft Generation

In this article, we describe the research and development of a 3 kV active rectifier for 4 MW aerospace generator drive system demonstrator. The converter is fed by multiphase high-speed/high-frequency permanent magnet generator. main aim work to demonstrate first time feasibility an MW-class meeting future hybrid-electric propulsion requirements. A concept with multiple isolated three-phase systems feeding different power buses proposed meet availability Multiple converters (one each system) are connected in series and/or parallel achieve rated dc-link voltage. This article describes key design concepts testing challenging application Reduced tests carried out on full-scale prototype, validating design. represents step forward terms voltage, power, output frequency respect state-of-the-art.