Research on Application of Stator-Excitation Brushless Motor for Electric Propulsion Aircraft
Based on the development needs of electric propulsion aircraft,a stator excitation brushless mo-tor is investigated.This article studies the performance indicators of the motor used in aircraft electric drive systems.A parameterized modeling method is used to establish a simulation model of the motor in ANSYS Maxwell.The finite element analysis method is used to simulate and optimize the motor with torque characteristics as the main indicator.And the optimal motor model suitable for electric propulsion airport is obtained.The electromagnetic characteristics of the optimized motor are further analyzed,inclu-ding torque characteristics,motor efficiency,output power and magnetic field distribution.The results show that the optimized motor has a reduction of 0.18 dm3 in permanent magnet usage,a 7.7%increase in torque,a 8.1%reduction in torque ripple,an output power density of 4.8 kW/kg,and an efficiency of 96.1%.The motor merits simple structure,excellent torque characteristics and high motor efficiency.
electric propulsion aircraftstator-excitation brushless motorfinite element analysiselectro-magnetic analysis
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