基于C8051的无刷直流电机控制系统

作者：郭崇军，李琦，洪权，许强 日期：2007-10-24/span> 浏览：3262 查看PDF文档

基于C8051的无刷直流电机控制系统

郭崇军，李琦，洪权，许强
(华中科技大学 电工电子科技创新中心，湖北 武汉 430074)

摘要：论述了基于C8051的直流无刷电机控制系统设计，实现了速度、电流的双闭环控制。给出了MOSFET驱动器的电路图，分析了将霍尔传感器检测到的位置信号和经采样电阻输入的电流信号，通过适当的PI算法，以PWM输出脉宽为控制变量，调节逆变桥MOSFET的导通比来实现速度电流双闭环的方案。经一对48 V/400 W无刷直流样机实验证明，系统运行稳定、处理速度快，成本低。
关键词：无刷直流电机；双闭环；PI控制算法；C8051单片机
中图分类号：TM351;TM301.2文献标识码：A文章编号：1001-4551(2007)09-0036-04

Brushless motor control system based on C8051
GUO Chongjun, LI Qi, HONG Quan, XV Qiang
(Electric & Electronic innovation center of Science & Technology, Huazhong University of Science and
Technology, WuHan 430074, China)
Abstract: A Brushless motor control system design based on C8051 was introduced, speed and current double close loop control was realized. And the MOSFET drive circuit was presented. With proper PI arithmetic, the motor double closeloop control was realized via the PWM output pulse width control according to the hall sensor signals and the sample current. The test result of the prototype of 48 V/400 W indicates that the performance of this control system is stable and accurate. Besides, it is a fast response and low cost system.
Key words: brushless motor； double close loop; PI control arithmetic; C8051 single chip micyoeo(SCM)

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