基于单片机的直流电机控制系统的设计.doc

论文题目 基于单片机的直流电机控制系统的设计 学位类别 学科专业 作者姓名 导师姓名 完成时间 基于单片机的直流电机控制系统的设计 中 文 摘 要 本文介绍了基于单片机PWM调速的基本方法，直流电机调速的相关知识及PWM调的基本原理和实现方法。重点介绍了基于MCS一51单片机的用软件产生PWM信号信号占空比调节的方法。对于直流电机速度控制系统的实现提供了一种有效的途径。直流电动机具有优良的调速特性,调速平滑方便调速范围广过载能力大能承受频繁的冲击负载可实现频繁的无级快速起动制动和反转能满足生产过程自动化系统各种不同的特殊运行要求电动机调速系统采用微机实现自动控制是电气传动发展的主要方向之一采用微机控制后整个调速系统体积结构简单可靠性高操作维护方便电动机稳态运转时转速精度可达到较高水平静动态各项指标均能较好地满足工业生产中高性能电气传动的要求。关键词：单片机系统PWM； 直流电机调速The Design of DC Motor Speed Control System Based on The SCM ABSTRACT This paper introduces a kind of method of DC —motor speed modification based on PWM theory by the SCM.Showing some relative knowledge upon the DC—motor timing，the basic theory and the way to implement.And it emphasizes on the way for carrying out PW M signals based on MCS一51.This paper still provides a method for modifying the speed of DC—motor by way of taking count of data and time delay by software.It offers a sort of efficient method for the DC motor speed—controlling system. DC Motor Speed Control has excellent characteristics, speed smooth and easy, and speed a wide range of Shock, able to withstand the impact of frequent load can be achieved without frequent fast-starting, braking and reverse; meet the production process automation systems various special operating requirements. Drives using micro-computer control, the development of electric drive is one of the major directions. Using computer control, the speed control system as a whole size, simple structure, high reliability, ease of maintenance and operation. Stable operation at the motor speed precision can be achieved at higher levels, static and dynamic indicators can better meet the industrial production of high-performance electric transmission requirements. KEY WORD：SCM； PWM； DC —motor spe