航空起动无刷直流电机圆/扁铜线对比分析  

Comparative Analysis of Round/Flat Copper Wires for Aero-start Brushless DC Motors

作　　者：张锋 李成[2] 吴娜 曹力 施道龙 孙若兰 ZHANG Feng;LI Cheng;WU Na;CAO Li;SHI Daolong;SUN Ruolan(Guizhou Aerospace Linquan Motor Co.,LTD.,Key Laboratory of Aerospace Precision Small Special Electrical Motors,Guiyang 550008,China;91007 Troops of PLA,Shanghai 200136,China)

机构地区：[1]贵州航天林泉电机有限公司航空航天精密微特电机重点实验室,贵阳550000 [2]中国人民解放军91007部队,上海315000

出　　处：《微电机》2024年第7期11-17,23,共8页Micromotors

摘　　要：航空起动电机具有效率高,工作环境恶劣,功率密度高的特点,是航空发动机起动的核心部件,但由于其工作环境恶劣多变,且性能指标要求高,所以亟需针对航空起动电机性能进行研究。本文首先建立一种6极18槽圆线电机A模型,得到其性能指标,而后建立扁线电机B,使其体积相同,在相同激励源下分析其性能指标;由于航空起动电机装机空间受到严格限制,本文在圆线电机A的基础上,建立扁线电机C模型,使其在能够达到圆线电机A输出性能的条件下,具有更小的体积。同时,通过Motor-CAD软件,对三种型号的电机进行热仿真,得到其温升分布结果。结果表明:圆线电机输出转矩为7.11 Nm,转速为7120 r/min,而相同体积下,扁线电机输出转矩为7.76 Nm,转速为7000 r/min,较之圆线电机转矩有大幅度提升;扁线电机C定子外径减少6 mm,定子长度减少1 mm,依旧能够输出与圆线电机A相同的转矩;扁线电机的功率密度较之圆线电机有提升;扁线电机B较之圆线电机A温度降低幅度不大,但扁线电机C最大温升较之圆线电机A降低16.9℃。Aeronautical starter motor is characterized by high efficiency,harsh working environment and high power density,which is the core component of aero-engine starter,but due to its harsh and changeable working environment and high performance index requirements,there is an urgent need to study the performance of aeronautical starter motor.This paper firstly established a 6-pole and 18-slots round wire motor A model to get its performance index,and then established flat wire motor B to make its volume the same,and analyzed its performance index under the same excitation source;Due to the strict limitation of aerospace starter motor mounting space,this paper established a flat wire motor C model based on circular wire motor A,which has a smaller volume while achieving the output performance of circular wire motor A.At the same time,through Motor-CAD software,thermal simulation of the three types of motors were carried out to obtain the results of their temperature rise distribution.The results show that:the output torque of the round wire motor is 7.11Nm,and the rotational speed is 7120r/min,while under the same volume,the output torque of the flat wire motor is 7.76Nm,and the rotational speed is 7000r/min,which is a substantial increase in the torque compared with that of the round wire motor;the flat wire motor C,with a reduction of 6mm in the outer diameter of the stator,and a reduction of 1mm in the length of the stator,is still capable of outputting the same torque as the round wire motor A;The power density of the flat wire motor is improved compared with that of the round wire motor;the temperature of the flat wire motor B is not reduced much compared with that of the round wire motor A,but the maximum temperature rise of the flat wire motor C is reduced by 16.9℃compared with that of the round wire motor A.

关 键 词：航空起动电机 扁线电机 圆线电机 有限元分析 

分 类 号：TM361[电气工程—电机]