文档介绍：北方民族大学
学士学位论文
论文题目: 基于单片机无刷直流电机控制系统
统的设计
院(部)名称: 电气信息工程学院
学生姓名: 孙学文
专业: 自动化
学号: 20090274
指导教师姓名: 王君瑞
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北方民族大学教务处制
摘要
1831年,法拉第发现了电磁感应现象,奠定了现代电机的基本理论基础。19世纪40年代第一台直流电机成功研制,随着科学技术的进步以及新兴的的电力电子技术、数字电子技术的发展,直流电机在某些应用场合已不能完全很好的应用,由于其机械换向引起的火花、转速受机械换向的限制等一系列问题的出现,科学家们开始试着研制一种用一些器件实现电机换向代替电刷—换向器换向的装置。1955年,美国人Harrison首次提出了用晶体管换向线路代替代替电机电刷接触的思想,直到1962年试制成功了借助霍尔元件(霍尔效应转子位置传感器)来实现换向的无刷直流电机。
本文从无刷直流电机的研究背景、研究意义、发展方向及分类,再到电机的系统结构、工作原理、控制方式都做了一系列系统的论述。尤其是在电机控制方式上。现代电机有多种控制方式,电机专用控制集成芯片控制、单片机和DSP控制,本文将采用MCS/51系列的单片机实现对电机的转速控制。通过用protues软件仿真及用keil软件验证过的程序进行测试,实现无刷直流电机平滑的调速。
关键词:无刷直流电机,单片机,protues
ABSTRACT
In 1831, Faraday discovered ic induction phenomenon, laid the foundation of basic theory of modern motor. First dc motor developed in the 1840 s, with the progress of science and technology as well as the emerging of the development of power electronic technology, digital electronic technology, dc motors in some applications is not very good application, due to its mutation spark, speed limited by mutation, the emergence of a series of problems, such as scientists begin to try to develop a use some device for mutation instead of the brush, commutator reversing device. Americans in 1955, Harrison was proposed for the first time use the mutation circuit instead of instead of the electrical motor brush contact, until 1962, was essfully trial-produced with hall element (hall effect rotor position sensor) to implement mutation of the brushless dc motor.
Based on brushless dc motor of the research background, research significance, the development direction and the classification, system structure, working principle to the motor, control mode, do a series of systems in this paper. Especially on the motor control mode. Hyundai motor has a variety of control mode, the special motor control chip control, MCU and DSP control, this article will use the MCS / 51 series microcontroller for motor speed control. By using protues software s