文档介绍：XX大学
本科毕业论文(设计、创作)
题目: 基于直流电机的精确定位系统设计
学生姓名: 学号:
院(系): 电子信息工程学院专业: 电子信息工程
入学时间: 二00八年九月
导师姓名: 职称/学位:
导师所在单位:
完成时间: 二0一二年五月
基于直流电机的精确定位系统设计
摘要
为达到某医疗控制系统安全、快速、精确定位的技术要求,并保证系统的稳定和可靠性,专门采用内部资源丰富的MSP430F149为主控芯片,配合使用高性能带有光电编码器的直流电机。从数字式直流电机定位系统的数学模型出发,选取电流,和电机转速作为反馈信号,采用PWM调制作为系统的输出信号,控制电机的转速,形成一个双闭环反馈直流脉宽调速系统。并以工程控制中广泛应用的PI算法作为系统的核心控制方案,从而实现系统的高速,精确定位。
关键字:MSP430F149;直流电机;光电编码器;PWM ;PI控制
Design of precise Positing system Based on DC motor
Abstract
In order to keep an medical control system operating safely,fastly, position accurately, and ensure the stability and reliability , we specifically use the internal resources MSP430F149 as the main chip, in conjunction with high-performance DC motor with optical encoder. Base on the mathematical model of the digital dc motor positioning system, we choose the current and the motor speed as feedback signals, using the PWM as the system output signal, forming a double closed loop feedback speed regulation system to control the motor speed. In order to realize the system of thigh speed and accurate location, we use the extensive application in project —the PI algorithm as the Core control theory.
Keywords: MSP430F149 ;DC motor; PI ;Double closed loop
目录
1 引言......................................................................1
开发背景................................................................1
选题的目的与意义........................................................1
2 系统的设计方法研究........................................................2
执行电机的选择..........................................................2
伺服电机..............................................................3
步进电机..............................................................4
综述..................................................................5
位置和速度传感器的选择..................................................6
光电编码器............................................................6
霍耳式传感器..........