单片机控制的直流电机闭环调速系统设计  

Design of DC motor closed-loop speed control system based on MCU

作　　者：詹庄春[1] 

机构地区：[1]华南农业大学珠江学院,广东广州510900

出　　处：《绵阳师范学院学报》2016年第11期23-27,共5页Journal of Mianyang Teachers＇ College

摘　　要：直流电机的突出优点是启动转矩大,控制简单,其数字控制系统性价比很高.直流电机负载运行属于一阶系统,为此提出了一种单片机控制方案.采用增量式PID控制算法和PWM调速方式,进行程序设计.以单片机为控制核心,利用降压斩波电路和压频转换电路可实现直流电机闭环调速系统的仿真.经过仿真测试,结果正确,效果明显.Prominent advantage of the DC motor is its big start torque, simple control and cost - effective digital control system. DC motor on load belongs to a first order system. Therefore an appropriate MCU control scheme is proposed. Using the incremental PID algorithm and PWM control mode, the program design is per-formed. With the single chip processor as the core, the simulation of DC motor closed - loop speed control system can be realized by using buck chopper and voltage frequency conversion circuit. Through test, the result is cor- rect. And the simulation effect is obvious.

关 键 词：直流电机 单片机 闭环调速 降压斩波 压频转换 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]