电推进飞机移相双绕组永磁电机特性分析

doi:10.7527/S1000-6893.2021.25230

Abstract

Abstract: This paper studies the dual-channel permanent magnet synchronous machine of the aircraft electric propulsion system. Firstly, the redundant output principle of the dual-channel machine system on the electric propulsion aircraft is explained. Then, the different forms of dual three-phase winding structures are compared. A dual-channel permanent magnet synchronous machine with phase-shifted dual three-phase windings is proposed. The electromagnetic characteristics of the dual three-phase synchronous machine with phase-shifted windings are emphatically studied. Also, the stator loss distribution characteristics are analyzed. Combining the cooling capacity and the stator loss distribution characteristics, the single-channel output capacity of the proposed dual-channel permanent magnet synchronous machine when a partial failure occurs is calculated. Finally, a 110 kW dual-channel permanent magnet synchronous machine prototype is developed. The analysis results are verified through experiments. The calculation results show that the machine can maintain an output power of at least 70% rated power when operating with a single channel, which can provide redundant power for the aircraft in emergency.

Key words: electric propulsion aircraft, propulsion motor, dual-channel permanent magnet synchronous machine, phase-shifted dual three-phase winding, electromagnetic characteristic, loss distribution characteristic, redundant output capability

CLC Number:

V19
TM351

LU Jiawei, ZHANG Zhuoran, LI Jincai, KONG Xianghao. Characteristic analysis of dual-winding permanent magnet synchronous machine with phase-shifted windings for electric propulsion aircraft[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(5): 325230-325230.

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Characteristic analysis of dual-winding permanent magnet synchronous machine with phase-shifted windings for electric propulsion aircraft

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