摘要永磁同步电机（PMSM）相较于其它电机，在结构和控制性能上具有很多优点，比如高转矩惯性比、高功率因数、高效率、体积小、可控性强、运行可靠等。这些优点使得它在工农业生产和民生产品中的应用越来越广泛。80920

在高性能的永磁电机控制系统中，检测转子速度和获取准确的位置信息是实现高精度控制必不可少的条件，以前使用普遍多的是在电机上安装光电编码器、旋转变压器等这类传感器来检测，但是这些机械传感器增加了系统的复杂度，还比较容易受到环境的干扰，可靠性较差。而如果采用无速度传感器控制技术，将有效减少永磁电机闭环控制系统的体积和成本，其抗干扰能力也有明显升高，尤其在一些特别差且条件艰苦的工业环境中，无速度传感器的优越性是相当显著的，因此，对于这一课题的深入研究是很有必要展开的。

首先，我通过查阅大量中外文献资料了解了本课题的相关信息，并对永磁电机、无速度传感器的控制技术有了一定的掌握。同时简要介绍了SVPWM的基本原理及是实现方法并且搭建其仿真模型。接着，研究了模型参考自适应的基本原理，并设计无速度传感器矢量控制的仿真模型。

毕业论文关键词：永磁电机、无速度传感器、矢量控制

Abstract Permanent magnet synchronous motor (PMSM) has many advantages in structure and control performance compared to other motors, such as high torque inertia ratio, high power factor, high efficiency, small size, strong controllability, reliable operation and so on。 These advantages make it more and more widely used in industrial and agricultural production and livelihood products。

The detection of rotor speed and access to accurate location information is essential to achieve high-precision control in the high-performance permanent magnet motor control system。 The previous use is the installation of optoelectronic encoder on the motor, such as rotary transformers sensors。 But these mechanical sensors increase the complexity of the system, and also be more susceptible to environmental interference, and its reliability is poor。 If the speed sensorless control technology is adopted, the volume and cost of the closed-loop control system of the permanent magnet motor will be effectively reduced, and the anti-jamming capability of the system will be improved remarkably。 In some harsh industrial environments, the superiority of the speed sensor is quite significant, so the in-depth study of this subject is very necessary to start。

First of all, I read a large number of Chinese and foreign literature to understand the information related to this topic, and permanent magnet motor, no speed sensor control technology has a certain grasp。 At the same time, the principle of SVPWM is studied and its simulation model is established。 Then, the basic principle of model reference adaptive is studied, and the simulation model of speed sensorless vector control is designed。 

Keywords: permanent magnet motor, speed sensorless, vector control

目录

摘要ⅰ

Abstractⅱ

目录ⅲ

1绪论。1

1。1引言。1

1。2课题背景、目的及意义。1

1。3国内外研究现状及发展趋势。2

2永磁同步电机的简介。2

2。1永磁电机的基本定义。2

2。2 永磁同步电机的原理、基本结构及数学模型。2

3 永磁电机矢量控制的理论分析。9

3。1矢量控制理论分析9

3。2空间矢量脉宽调制SVPWM。12

4无速度传感器矢量控制系统设计。18

4。1 模型参考自适应（MRAS）。18

4。2 Popov超稳定系统理论分析。19

4。3 基于MARS理论的永磁电机转速辨识方案设计20