Considering the relations between idle load characteristics and armature winding parameters of the salient pole propulsive synchronous motor ( spsm ) with its structure , stator tooth and magnetic saturation , the analysis of numerical method for the back electromotive force calculation of spsm is given under various exciting current values 摘要针对凸极式同步推进电机的空载特性及其绕组参数与电机结构、定转子齿槽、磁场饱和等紧密相关的问题，分析了在不同励磁电流下同步推进电机相反电势的数值计算方法，提出了采用电机磁场能量微动法计算相绕组的参数，并对一台十二相同步推进电机的绕组参数及其空载特性进行了计算和测量。
Next , in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors , the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field . oh the basis of the mathmatic model , the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential , magnetic field intensity , magnetic induction , the shape of the magnetic scarlar potential level surface , the distribution of the magnetic circuit , the magnetic induction the self - inductance and the mutual inductance of the coils 其次，为全面了解这种新型电磁电机的电磁特性和动力特性，本文从电机磁场的基本方程及其边界条件出发，应用无旋磁场的标量磁位概念，建立了端面摇摆式电磁微电机内部磁场的数学模型，并以此为基础，详细分析了电机气隙磁场的各方面性质，对气隙磁场的磁标位、磁场强度、磁感应强度、等磁位面形状、电机工作磁路的分布、电机的工作磁通量以及激励绕组的自感和相互之间的互感进行了详细的分析计算。
Analysis for magnetic field of srm is very complicated since the flux waveforms in different parts of the motor vary with motor phase , stator pole and rotor number , also with the winding connections , etc , which results in the srm losses , especially iron loss calculation difficult . the temperature analysis due to the losses has become a study hot spot Sr电机铁心的磁通波形不仅与电机的相数有关,还与定、转子齿极数、定子绕组连接方式等密切相关,从而使得sr电机磁场分析很复杂,复杂的磁通密度波形导致电机损耗特别是铁损的计算非常困难。电机的损耗又会引起电机的温升,因此高性能的sr电机的热分析也成为目前的研究热点。
With summarizing and describing systematically the fundamental principles and research developments of electromagnetic field in the motor , finite element analyses ( fea ) of electromagnetic field of engineering , the switched reluctance motor ( srm ) , and iron losses of motor cores , taking the common four - phase , 8 / 6 - pole srm as the object of study , this paper analyses , calculates , and then simulates the electromagnetic field in the srm using 2d finite element method , and obtains the - i - characteristics as the magnetization curve of the srm with the data derived from the results of fea 本文在系统地总结和描述电机内的电磁场、工程电磁场有限元分析、开关磁阻电机(简称sr电机)以及电机铁心损耗基本理论和研究进展动态的基础上，以常见的四相8 6极电机作为分析对象，进行sr电机磁场二维有限元分析与计算，对电机内磁场进行了仿真，并通过有限元计算所得有关数据获得- i -形式的sr电机磁化曲线。
To solve the problem that output voltage can not be adjusted of the permanent magnet synchronous machine ( pmsm ) , the paper deuelope a new type of machine , the paratactic structure hybrid excitation synchronous machine , describing the structure and working principle of the machine , and anolysing its non - load characteristics , the voltage characteristics and regulative characteristics 摘要针对永磁同步电机磁场调节困难、输出电压不可调的问题，研制了一种新型的并列结构混合励磁同步发电机，并对其空载特性、外特性及调节特性进行了分析。
Due to 12 / 8 poles doubly salient permanent magnet motor , planar finite element method ( fea ) is applied to analyze the magnetic field inside the motor . and a series of static characteristics are investigated , such as field distribution , air gap magnetic density , field flux , inductance , static torque 针对12 / 8极永磁式双凸极电机,采用二维平面有限元法对电机内磁场进行分析计算,研究了电机磁场分布、气隙磁密、绕组磁链、绕组电感、静态转矩等一系列电机静态特性。
Secondly , the math model of the high - speed pm generator with a shielding is deduced . the method of how to analyze the electromagnetic field of the generator is introduced . and with the help of a kind of fem software , the parameters of a model machine are calculated and simulated , including the electromagnetic field , no - load voltage , single - side magnetic force , loaded torque and axial force 其次，对转子带防护罩的高速永磁发电机数学模型进行了推导，介绍了利用有限元法对电机磁场进行分析的方法，并运用有限元软件对一台样机的参数进行了仿真，包括电机磁场分析、空载电压波形、单边磁拉力、负载转矩以及轴向力等方面的内容。
