摘要本文从开关磁阻电机（Switched reluctance motor,SRM）的发展概况出发，从理论上对SRM及SRM调速系统进行了详细的介绍，包括其结构组成、数学模型、性能特点等。由于SRM是典型的机电一体化产品，其性能很大程度上依赖于控制器的设计，本文主要便介绍了SRM常用的几种控制方法并对适用场合和优缺点进行了分析。68457

    随后本文在Matlab/Simulink的环境下搭建了SRM仿真调速控制系统。该系统在电机层面采用了电流斩波控制（CCC），并针对其转速的控制设计了普通PI、模糊PI、分段PI三种控制器。对于这三种控制器，本文给出了详细的转速仿真波形和性能参数，并对这三种控制器的性能进行了分析。从总体上看，采用了模糊PI和分段PI转速控制的SRM系统具有相对更优异的性能，但在某些方面依然有一定缺陷。

毕业论文关键词  开关磁阻电机  SRM  Matlab仿真  转速控制器

毕业设计说明书（论文）外文摘要

Title    Modeling and control of switched reluctance  motor                                                 

Abstract

This paper starts from the development situation of switched reluctance motor(SRM) and introduces it in detail theoretically, including its structure, mathematical model, characteristic etc. As SRM is a typical mechatronic product, its performance is heavily dependent on the design of the controller. The paper then suggests several methods of SRM controlling which are commonly used and analyses both the applicability and the advantages and disadvantages of SRM.

Soon after, an SRM speed control system in Matlab/Simulink environment which uses chopped current control (CCC) at motor lever is constructed. For controlling the speed of SRM, the design of ordinary PI, fuzzy PI, segmented PI controller are presented. For all three kinds of controller, this paper gives the speed simulation waveforms and the detailed performance parameters, and the performance of the three controllers are analyzed. The SRM system using fuzzy PI and segmented PI controller stand more excellent performance, but there are still some defects in some aspects.

Keywords  switched reluctance motor  SRM  Matlab simulation speed controller

目   次

1  绪论 1

1．1  课题背景 1

1．2  研究现状 1

1．3  本文工作与安排 2

2  SRM的结构特点与数学模型 4

2．1  SRM结构原理 4

2．2  性能特点 5

2．3  数学模型 5

2．4  SRM调速系统组成 8

3  SRM的控制与功率变换器研究 10

3．1  功率变换器 10

3．2  电机层面控制 10

3．3  系统层面控制 13

4  控制器设计 14

4．1 控制系统结构 14

4．2 转速控制器设计 17

5  仿真结果与分析 22

5．1  仿真结果 22

5．2  结果分析