This paper proposes novel enhancements to the electric propulsion system analysis method for electric vertical takeoff and landing (eVTOL) aircraft conceptual design by considering the electrical characteristics of each electrical device in a more accurate manner. To this end, three modules for motor, inverter, and battery analysis are constructed using equivalent circuits and semi-empirical models. First, the motor analysis module is developed using equivalent circuit analysis with the operation control strategy for a permanent-magnet synchronous motor. Second, the inverter analysis module is built using average loss models for the switching and conduction losses. Third, the battery analysis module is improved using the near-linear discharge model to consider the voltage drop during operation. Moreover, additional modules, such as those for calculating the battery stack in series and parallel, as well as regression models for the motor and inverter performance parameters and consideration of the drive system type (direct or indirect, including a reduction gear), are implemented. A comparative study is presented from an analysis and design perspective while changing the drive system type (direct or indirect) and gear ratio, which highlights the importance of modeling electrical characteristics during eVTOL aircraft conceptual design.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Novel Electric Propulsion System Analysis Method for Electric Vertical Takeoff and Landing Aircraft Conceptual Design


    Contributors:
    Lee, Donguk (author) / Yee, Kwanjung (author)

    Published in:

    Journal of Aircraft ; 61 , 2 ; 375-391


    Publication date :

    2024-01-12


    Size :

    17 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    ELECTRIC VERTICAL TAKEOFF/LANDING AIRCRAFT AND CONTROL DEVICE OF ELECTRIC VERTICAL TAKEOFF/LANDING AIRCRAFT

    SUGITA SHUN / IWAKAWA AKIRA / HASHIMOTO MARIKO et al. | European Patent Office | 2021

    Free access

    VERTICAL TAKEOFF AND LANDING AIRCRAFT USING HYBRID-ELECTRIC PROPULSION SYSTEM

    MOON CHANG MO / MOON JI HO / KIM SUNG SU | European Patent Office | 2019

    Free access

    ELECTRIC VERTICAL TAKEOFF AND LANDING AIRCRAFT AND CONTROL DEVICE FOR ELECTRIC VERTICAL TAKEOFF AND LANDING AIRCRAFT

    SUGITA SHUN / IWAKAWA AKIRA / HASHIMOTO MARIKO et al. | European Patent Office | 2021

    Free access

    ELECTRIC VERTICAL TAKEOFF AND LANDING AIRCRAFT

    MELCHER THOMAS W | European Patent Office | 2021

    Free access

    Electric vertical takeoff and landing aircraft

    MELCHER THOMAS W | European Patent Office | 2023

    Free access