摘要
混合动力汽车电机要求高效、高功率密度、低脉动转矩,普通电机显示出了其局限性;Halbach电机是一种新型永磁电机:独特的永磁体结构使其磁极磁场呈单边且正弦分布,在增加气隙磁通密度、削弱转子轭部磁通密度的同时,又可减少磁场谐波,这有利于提高电机的功率密度和效率、减小电机的体积和脉动转矩;基于MATLAB的Halbach电机设计软件和基于ANSYS有限元分析软件极大地减少了样机设计时间;针对Halbach电机特点设计了基于DSP2407A混合动力汽车全数字电力驱动系统,实验结果证明Halbach电机在混合动力系统中有较大的优越性。
Motor needs high efficiency, high power density and low pulsating torque in hybrid electric vehicle, traditional motors have their limits; Halbach motor is a novel permanent magnet （PM） motor： One-sided and sinusoidal field is produced by special distribution of permanent magnets. The field can increase air-gap flux while decrease rotor-yoke flux and air-gap harmonic, which can improve power density and efficiency, reduce volume and pulsating torque of motor. Halbach motor design software based on MATLAB and finite element analysis software based on ANYAS reduce period of motor design greatly. Full-digital electric-driven system of hybrid electric vehicle based on DSP2407A is designed according to Halbach motor＇ s distinguishing feature. Experiment results prove Halbach motor has much more advantages in the system than traditional permanent magnet motor.
出处
《中国工程科学》
2009年第4期57-62,共6页
Strategic Study of CAE
基金
国家自然科学基金(50275067)
