摘要
随着飞机多电化/全电化趋势的推进,多电发动机成为核心技术。设计了一种基于新型转缸式摆盘发动机的共轴高转矩永磁同步电机,实现发动机与电机一体化。首先,根据发动机性能参数和传动轴的关系,确定共轴结构和电机尺寸。其次,通过有限元软件分析扁线绕组层数和尺寸对铜损的抑制作用。同时,采用转子分段斜极、辅助槽和田口算法对电机拓扑结构进行优化,降低电机齿槽转矩、额定转矩脉动、定子铁损及气隙磁密畸变率,显著提升电磁性能。最后,对电机各工况仿真,计算驱动与发电效率,并验证在大电流条件下电机不发生退磁现象。结果表明:电机在6000 r/min额定转速下,输出转矩200 N·m,并处于高效运行区,电机峰值转矩可达400 N·m,高速发电恒功率区功率达到250 kW,满足设计规范要求。
As the trend toward more-electric and all-electric aircraft accelerates,multi-electric engines have become a key technology.A coaxial high-torque permanent magnet synchronous motor based on a new type of rotary cylinder disc engine was designed to achieve the integration of the engine and the motor.Firstly,based on the relationship between the engine performance parameters and the drive shaft,the coaxial structure and motor dimensions were determined.Secondly,the inhibitory effect of the number and size of the flat wire winding layers on copper loss was analyzed through the finite element soft analysis.Meanwhile,the motor topology was optimized by using the rotor segmented inclined pole,auxiliary slot and Taguchi algorithm to reduce the cog-slot torque,rated torque ripple,stator iron loss and air-gap magnetic flux density distortion rate of the motor,significantly improving the electromagnetic performance.Finally,the various working conditions of the motor were simulated,the driving and power generation efficiencies were calculated,and it is verified that the motor does not demagnetize under the condition of large current.Results indicate the motor delivers 200 N·m of torque at a rated speed of 6000 r/min,with a peak torque of 400 N·m and a maximum power output of 250 kW in high-speed generation mode,meeting all design specifications.
作者
徐璋
邓涛
柳平
XU Zhang;DENG Tao;LIU Ping(School of Aeronautical,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Key Laboratory of Green Aviation Energy and Power,Chongqing 400074,China;The Green Aerotechnics Research Institute of Chongqing Jiaotong University,Chongqing 400074,China)
出处
《科学技术与工程》
北大核心
2025年第21期8926-8935,共10页
Science Technology and Engineering
基金
国家自然科学基金(52275051)
重庆市教育委员会科学技术研究重大项目(KJZD-M202400703)
重庆交通大学自然科学类揭榜挂帅项目(XJ2023000701)
重庆市研究生导师团队建设项目(JDDSTD2022007)
重庆市研究生联合培养基地建设项目(JDLHPYJD2022001)
重庆市自然科学基金(CSTB2022NSCQ-LZX0068)。
关键词
永磁电机
摆盘发动机
共轴结构
田口算法
电磁性能
permanent magnet motors
swashplate engine
coaxial structure
Taguchi algorithm
electromagnetic properties
