基于8051单片机无刷直流电机控制器设计_精品.doc

本科毕业设计说明书 基于8051单片机无刷直流电机控制器设计 BASED ON 8051 SINGLE CHIP MICROCOMPUTER CONTROLLER OF BRUSHLESS DC MOTOR DESIGN 学院（部）： 专业班级： 学生姓名： 指导教师： 年 月 日 基于8051单片机无刷直流电机控制器设计 摘要 无刷直流电动机的出现源于有刷直流电机。如今各种直流电动机和交流电动机在传动应用中虽占主导地位，但是无刷直流电动机的前景更光明。 无刷直流电机是随着社会的需要而产生的，当今世界对电机的要求越来越高，传统的直流电机已经满足不了当今工业对其的需要，因此无刷直流电机得以迅速发展，无刷直流电机满足了人们对高效率，高精度，高速度的要求，配合微处理器得以智能化，是各知识领域的重要结晶成果。 再对控制器的选用上，选择单片机AT89C51，其能够满足对控制器的要求，因本文是对无刷直流电机的控制，显然驱动电机用无刷直流电机，整个思路是通过单片机采集获得的比较电平、以及电机霍尔位置传感器反馈过来的信号，单片机将接收到的信号，将其用软件编程故而发出指令驱动无刷直流电动机。 关键词 ：无刷直流电动机，单片机，霍尔位置传感器 BASED ON 8051 SINGLE CHIP MICROCOMPUTER CONTROLLER OF BRUSHLESS DC MOTOR DESIGN ABSTRACT The appearance of brushless dc motor from a brush dc motor. Now all kinds of dc motor and ac motor is dominant in the drive applications, but a more bright future of brushless dc motor. Brushless dc motor is along with the social needs, the demand is higher and higher in todays world of motor, the traditional dc motor has already cant satisfy the need of the industry to its, so rapidly the brushless dc motor development, meet the brushless dc motor of high efficiency, high precision, high speed requirements, cooperate with the microprocessor to intelligent, is the important achievements of crystallization in the field of knowledge. This design is mainly for the selection of controller, the controller selection plays a key role in this design, so the main controller use AT89C51, brushless dc motor as drive motor, the control method by comparing with the single chip microcomputer collected level, and motor hall position sensor feedback signal, single chip receives the signal, its software programming to issue instructions to drive the brushless dc motor. KEYWARDS: Brushless dc motor, the microcontroller, hall position sensor 目录 摘要 I ABSTRACT II 第一章 绪论 1 1.1 电机的分类 1 1.2 无刷直流电机及技术的发展及研究意义 2 第二章 无刷直流电机的介绍 3 2.1 无刷直流电动机的概念 3 2.2 无刷直流电机与有刷直流电机的比较 4 2.3 无刷直流电动机的基本工作原理及组成 5