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《现代电子技术》2005 年第 23 期总第 214 期测试·测量·自动化
TMS320L F2407A 在无位置传感器无刷直流电动机
控制系统中的应用
周志光, 朱志伟, 刘定良
(长沙民政学院湖南长沙 410004)
摘要: 介绍了基于 TM S320L F2407A D SP 的无位置传感器无刷直流电动机控制系统, 并探讨了无位置传感器的解决
方案, 电动机换相信号的输出, 电动机转速的测量, 以及数字 PWM 调速信号的输出, 电流的采集处理等。并通过软件编
程实现速度的 P ID 调节, 构成电动机转速闭环控制系统。详细阐述了控制电路、保护电路的组成与原理, 并给出了硬件连
接电路示意图及其软件设计。该系统的特点就是结构简单, 实现了全数字式控制, 在运行中获得了良好的动静态性能。
关键词: 无位置传感器; 无刷直流电动机; TM S320L F2407A D SP; 反电动势
中图分类号: TM 301 2 文献标识码: B 文章编号: 1004 373X (2005) 23 067 03
Application of TMS320L F2407A in the Sen sor L ess BLDCM Con trol System
ZHOU Zh iguang, ZHU Zh iwei,L IU D ingliang
(Changsha SocialW o rk Co llege, Changsha, 410004, China)
Abs tra c t: T h is paper introduces the contro l system of senso r less BLDCM based on TM S320L F2407A D SP, and a so lution of its
senso r less speed contro l is also be described, the output of change phase signals, the m easurem ent of speed of the mo to r, output of
the digital PWM and A D conversion of the mo to r′s current p leted by TM S320L F2407A T he softw are realizes the speed P ID
modulation T he P ID realizes the close- loop contro l of the speed T po sition and the p rinciple of contro l and p ro tection circuit
are described in detail It also gives the diagram of hardw are connection circuit and the softw are design T he m ain p roperties of the
contro l system are: