基于DSP的全数字直线伺服系统设计  

Design of Digital Linear Servo System Based on DSP

作　　者：林健[1] 左健民[1] 刘坤[1] 宋丽蓉[1] 

机构地区：[1]南京工程学院先进数控技术江苏省高校重点建设实验室,南京210013

出　　处：《微电机》2008年第6期84-86,共3页Micromotors

基　　金：江苏省自然科学基金项目(BK2005111);江苏省高校自然科学基础研究项目(06KJB460034);江苏省重点实验室开放基金(KXJ05012);南京工程学院科研基金(KXJ06020)

摘　　要：根据数控机床对直接驱动直线电机的要求,介绍了一种以DSP为控制器和智能功率模块驱动的直线电动机全数字交流伺服系统。详细说明了驱动器的硬件结构、控制电路、功率逆变器电路,阐述了电动机控制策略,分析了电流中断子程序、初始定位中断子程序和回零中断子程序的流程。由于系统硬件精简,大部分功能都通过软件实现,因而具有充分的柔性。According to the demand of CNC machine tool for the direct drive linear motor, A DSP based motion controller for a digital linear servo motor system is presented. The linear motor system employs a TI TMS320LF2407 DSP as the microprocessor, and an intelligent power module as the drive. The sys- tem architecture including control circuit and power inverter are presented. Motion control strategies is al- so discussed, the current interrupt subroutine, start positioning interrupt subroutine and return zero inter- rupt subroutine are analyzed. The system has full flexibility because the hardware is simple and a majority of function is implemented by software.

关 键 词：直线伺服系统 数字信号处理器 智能功率模块 交流伺服系统 软件设计 

分 类 号：TM359.4[电气工程—电机]