航空科学技术2025，Vol.36Issue(4)：29-36,8.DOI:10.19452/j.issn1007-5453.2025.04.004
电动飞机用永磁容错电机模块化绕组设计
Modular Winding Configuration Design in Fault-Tolerant Permanent Magnet Machine for Electric Aircraft
摘要
Abstract
The permanent magnet machines can be treated as the core driving component of electric aircraft.The high short-circuit current can cause overheated machines,broken winding isolation and permanent magnet irreversible demagnetization.This further leads to the aircraft being out of control,posing a serious threat to the life safety of the pilots.Therefore,a new modular winding configuration is proposed to reduce the negative impact of short-circuit current on electric aircraft.Firstly,the modular winding configuration is obtained based on the slot electric potential diagram.Secondly,the elimination law of magnetomotive force harmonic of multi-phase winding configuration is elaborated according to winding function.Afterwards,the relationship between the short-circuit current and self-inductance is revealed through theoretical deduction.Finally,through finite element simulation,it is verified that the proposed modular winding configuration is beneficial for suppressing the short-circuit current and mutual inductance,improving reliability,and almost not sacrificing torque.Consequently,the proposed modular winding configuration can suppress the short-circuit current and enhance the fault-tolerant capability of permanent machines,which is of great significant for the safe operation of the electric aircraft.关键词
永磁电机/电动飞机/模块化绕组/短路电流/容错能力Key words
permanent magnet machine/electric aircraft/modular winding configuration/short-circuit current/fault-tolerant capability分类
动力与电气工程引用本文复制引用
李杰,吉敬华,孙玉华,赵文祥..电动飞机用永磁容错电机模块化绕组设计[J].航空科学技术,2025,36(4):29-36,8.基金项目
国家自然科学基金(52377055) （52377055）
航空科学基金(202200580R3001) National Natural Science Foundation of China(52377055) （202200580R3001）
Aeronautical Science Foundation of China(202200580R3301) （202200580R3301）
