高速轴向电励磁双凸极电机设计与特性分析

Design and Characteristic Analysis of High Speed Doubly Salient Axial Electromagnetic Motor

现代多电飞机技术不断发展,对航空电源系统提出了更高的要求。依据航空起动发电机具有可靠性高、功率密度高、电源容量大的要求,设计了一种高速轴向电励磁双凸极电机(DSAEM)。对电机的基本结构和工作原理进行了描述,建立了电机的数学模型,并通过有限元仿真加以验证,详细分析了电机的磁场、电感、空载特性和负载特性。结果表明,高速轴向电励磁双凸极电机具有完全对称的三相磁链,可输出更稳定的电压,其电机绕组的空间利用率高、功率密度大、效率高,可满足航空电源的基本需求。

With the continuous development of modern multi-electric aircraft technology,higher requirements are put forward for the aviation power supply system.According to the requirements of high reliability,high power density and large power supply capacity of aviation starter generator,a high speed doubly salient axial electromagnetic motor(DSAEM)is proposed.The basic structure and working principle of the motor are described,the mathematical model of the motor is established and rerified by finite element simulation.The magnetic field,inductance,no-load characteristics and load characteristics of the motor were analyzed in detail.The results show that DSAEM has a completely symmetrical three-phase magnetic linkage which can output a more stable voltage.The motor winding has high space utilization rate,high power density and high efficiency,and can meet the basic requirements of aviation power supply.