Abstract
The scheme of an aircraft’s hybrid propulsion system, which includes an assembly of DC voltage converters (some which are bidirectional), fuel cells, lithium-ion storage batteries, a power flow distribution controller, and an inverter electric motor, is proposed. With such scheme, it is possible to flexibly change the power supplied to the electric motor, to scale the propulsion system for the necessary purposes, and to charge the storage battery in the course of aircraft descending and landing. A method for calculating static and dynamic losses in the boost converter used in the propulsion system is presented. The converter mass is estimated depending on the switching frequency for different types of power switching devices, including the calculation of the mass of capacitive, inductive and switching elements. Calculations have shown that the minimum mass of a pulse power converter operating at a repetition frequency of 100 kHz with a power of 80 kW at an output voltage of 300 V is 8.2 kg. With the repetition frequency increased to 1 MHz, the converter mass increases by almost five times to reach 40 kg.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
