直流电机数字脉宽调速实验系统的研究与设计

摘要

本文介绍了E L-D S-III型实验台直流电机传统模拟控制器的弊端和缺陷，重点阐述了基于数字信号处理器（D SP）代替传统模拟控制器，利用PW M 脉宽调速技术和经典的转速、电流双闭环数字PI调节技术实现直流电机数字控制器的设计思路，对于实现高性能、高精度、多功能的直流电机数字脉宽调速实验系统提供了一种有效的实现途径。%T his paper introduces the m alpractices and defects of the dc m otor traditional analog controller of the EL-D S-IIItype test-bed,putsem phasison the design ideasofrealizing dc m otordigitalcontrollerby using digi-talsignalprocessor (D SP) to replace the traditionalanalog controller and using PW M pulse w idth speed control technology and classicalspeed and currentdouble closed loop digitalPIregulation technology,w hich provides an effective realization w ay to achieve dc m otor digital pulse w idth control experim ent system w ith character of high perform ance,high precision,m ulti-function .