基于DSP的开关磁阻电机调速特性的实现—硬件部分.doc

i 论文题目: 基于 DSP 的开关磁阻电机调速特性的实现—硬件部分摘要开关磁阻电机调速系统具有结构简单、坚固、系统控制灵活、调速性能好、运行效率高、动态性能好等诸多优点,近二十多年来,国内外在开关磁阻电机及其调速系统研究方面发展迅速。但对于一些特殊的需求领域,还未曾进行深入研究。本文正是基于这一需求,以三相开关磁阻电机为研究对象,对其调速系统进行研究。本课题主要完成的工作有以下两部分:首先,深入研究了开关磁阻电机的基本特性与数学模型,从中得出了一种简便、实用的通过电流检测转矩的方法。其次,设计了基于 DSP56F803 的开关磁阻电机调速系统通用的硬件电路,可以实现调速控制、变角度控制、定角度电压斩波和电流上下限斩波控制。目前在许多生产机械中,比如,电动汽车、游梁抽油机、电动钻机等需要具有的电机驱动,即直流电动机的串励特性。开关磁阻电机调速系统的研究,将拓宽开关磁阻电机的研究和应用领域,并且对推动我国电气传动领域的发展也具有十分重要的现实意义。关键词: 开关磁阻电机,调速系统 ii DSP-based speed characteristics of SRM implementation - hardware Abstract The Switched reluctance drive system has a simple structure, strong, flexible system control, speed performance, high efficiency, good dynamic performance advantages over the past two decades, both at home and abroad and in the Switched Reluctance Motor Speed Control systems research has developed rapidly. But for some special area of demand, but also did not conduct an in-depth research. This article is based on the requirements to three-phase switched reluctance motor for the study of its soft characteristics of speed control system for research. The main subject of the work have the following two parts: First of all, in-depth study of the switched reluctance motor's basic features and mathematical models to draw a simple, useful torque through the current detection method. Secondly, the design DSP56F803 based on the switched reluctance drive mon hardware, software features can be speed control, voltage angle and current chopper chopper control upper and lower limits. At present in many production machines, such as electric vehicles, beam pumping unit, the electric drill with soft features, such as the motor drive, DC motor that is characteristic of the Series. Soft characteristics of Switched Reluctance Motor Speed Control System, will expand the Switched Reluctance Motor's research and applications, and the promotion of China's electric drive development of the area isof great practical significance. Key words : Switched reluctance motor, C ontrol s