摘 要永磁同步电机在我国有着十分美好的发展远景。当然不仅仅是我国重视这方面的研究与开发，世界上很多国家也一直都很关注这方面的发展情形，致力于在永磁同步电机上使用稀土永磁材料。因为永磁同步电机无论是在结构、体积还是重量上，都体现出出色的轻便型，而且在其运行时是没有无功励磁电流产生的，相对来讲损耗也是很低的。如果拿永磁同步电机和普通电机相比较的话，其定子电流以及定子电阻的损耗都会相对较低，而另一方面其力矩惯量就较大，这样就能比较容易的知道转子的相关参数值并对具体数值进行测量，还有一点就是其控制性能也会比普通电机强。永磁同步电机也有缺点，比如说其最高转速就会受到一定程度的限制，其最大转矩因为永磁体的原因而受到了相对局限，还有就是其抗震能力较差，而且制作一部完整的永磁同步电机的成本也是相对来讲比较的高的。87391

在这篇论文中不仅介绍了永磁同步电机的定向控制，而且还从一定角度介绍了其几种类型及其基本的特点。还要初步地了解MATLAB软件，可以自己独自完成一些基础性的操作，通过仿真研究可以帮助我们更深层次的了解和学习永磁同步电机。

毕业论文关键词： 定向控制;SIMULINK;仿真建模;永磁同步电机;SVPWM

Abstract   As we know, in China, the permanent magnet synchronous motor has a very bright development prospect 。 Of course, it is not only attaches importance to the research and development in our country, but also many other countries in the world has been paying attention to the development situation in this aspect and devoting themselves to using rare earth permanent magnet material on the permanent magnet synchronous motor。 It is precisely because various countries in the world pay much more attention to the development of this aspect。 The permanent magnet synchronous motor reflects the excellent characteristic of portability no matter in structure, volume, or weight。 In addition, there is no reactive excitation current in its run time。 And, relatively speaking, the wastage is also the lowest。 If we make a comparison between the permanent magnet synchronous motor and normal motor, then on the one hand, the loss of the stator current and stator resistance of the former is relatively lower, but on the other hand, the moment of inertia is relatively bigger。 In this way, it will be easy to know the associated parameter values of rotor and measure its specific figures。 One more thing is that the former’s control performance is also stronger than normal motor。 The permanent magnet synchronous motor also has some defects。 For example, its maximum rotate speed will be limited to a certain extent。 Besides, owing to the permanent magnet, its maximum torque has been relatively limited。 What’s more, the ability of its shock resistance is relatively poor and the cost of making a complete permanent magnet synchronous motor is relatively high。 

  This paper not only introduces the orientation control of permanent magnet synchronous motor, but also present its several types and its fundamental feature。 Moreover, we have to make a preliminary understanding on MATLAB software and have the ability of operating basic work alone。 It can help us make a further understanding and learning on permanent magnet synchronous motor according to the study on its simulation。

Keywords: Directional control; SIMULINK; Simulation modeling; Permanent magnet synchronous motor; SVPWM 

目  录

第一章  绪论 …………1

1。1 研究背景 1来-自+优=尔;论.文:网www.youerw.com +QQ7520.187661。2 研究目的及意义 2