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http://dx.doi.org/10.9723/jksiis.2020.25.5.049

Conceptual Design of an HTS Motor for Future Electric Aircraft  

Le, Dinh-Vuong (창원대학교 전기공학과)
Nam, Gi-Dong (창원대학교 전기공학과)
Lee, Seok-Ju (창원대학교 전기공학과)
Park, Minwon (창원대학교 전기공학과)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.25, no.5, 2020 , pp. 49-57 More about this Journal
Abstract
Conventional electric motors are not suitable for aircraft because of their large size and weight. High-temperature superconducting (HTS) motors have high current density, high magnetic field density, and low loss, so they can significantly reduce the size and weight compared to general electric motors. This paper presents the conceptual design and analysis results of HTS motors for electric propulsion in future aircraft. A 2.5 MW HTS motor with a rotational speed of 7,200 RPM was designed and the specific power (kW/kg) was analyzed. The operating temperature of the field coil of the HTS motor is 20K in consideration of LH2 cooling. The stator winding were connected in a multi-phase configuration and Litz wires were used to minimize eddy current losses. As a result, it was confirmed that the specific power of the motor is about 18.67 kW/kg, which is much higher than that of the conventional electric motor.
Keywords
Aircraft propulsion system; Electric aircraft; Electric motor; HTS motor; Superconducting motor;
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Times Cited By KSCI : 4  (Citation Analysis)
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