摘要在进入80年代后较低价格的钦铁硼永磁材料的出现，使永磁同步电动机能够进入普通民用的市场提供了可能，几十瓦到几百瓦永磁同步电动机开始在医疗器械、仪器仪表、化工、纺织以及家用电器等民用领域初显身手。

永磁同步电动机的最本质特征就是没有机械换向结构，取而代之的是逻辑电路和功率开关线路共同组成的电子换相器，它把直流电逆变成交流电并按一定的次序通入电动机的定子绕组中以产生与定子磁场正交的转子磁场。在使用中永磁同步电机相比有刷电机有许多的优点，比如：能获得更好的扭矩转速特性高速动态响应；高效率；长寿命；低噪声；高转速。

    本论文介绍了永磁同步电机控制技术的基本知识和永磁同步电机控制系统的研究意义与研究现状，分析永磁同步电机在高转速下的动态特性并建立数学模型，设计该系统的遗传速度估计算法，同时研究遗传算法对永磁同步电机的速度估计，以便获得较高的速度估计精度，最后用MATLAB编写程序并仿真实现。通过本次课题研究最终得出遗传算法运用在永磁同步电机高速度估计上的优势。65243

毕业论文关键词：永磁同步电机  遗传算法  仿真

毕业设计说明书（论文）外文摘要

Title  Speed control of permanent magnet synchronous motors using fuzzy controller based on genetic algorithms                     

Abstract

In the 1980s a lower price after Chin-iron-boron permanent magnet materials have enabled the permanent magnet synchronous motor can enter ordinary civilian market offers the possibility, tens of watts to several hundred watts of permanent magnet synchronous motor started medical equipment, instruments instruments, chemicals, textiles and household appliances and other civilian areas debuts.

Permanent magnet synchronous motor is the most essential feature is no mechanical commutation structure, replaced the logic circuits and power switching circuit composed of electronic commutator, which converts DC into AC inverse order according to certain pass into the motor stator windings to produce a magnetic field perpendicular to the rotor and the stator magnetic field. 

This paper describes the permanent magnet synchronous motor control technology, the basic knowledge and permanent magnet synchronous motor control system research significance and research, analyzes permanent magnet synchronous motor at high speed and the dynamic characteristics of a mathematical model, the design speed of the system of genetic estimation algorithm, genetic algorithm also studied the permanent magnet synchronous motor speed is estimated in order to obtain a higher speed estimation accuracy, and finally using MATLAB programming and simulation. Through this research eventually come genetic algorithm used in permanent magnet synchronous motor speed is estimated on the edge.

Keywords  PMSM  Enetic algorithms  Imulation

目   录

1  绪论 1

1.1  课题的研究背景 1

1.2  课题的研究意义 2

1.3  遗传算法对本论文的意义 3

1.4  本文的主要工作 3

2  永磁同步电机的数学模型和控制策略 5

2.1  永磁同步电机的数学模型 5

2.2  永磁同步电机的矢量变换 7

2.3  永磁同步电机的矢量控制实现