单相交流串励电机调速系统设计  

Research on single-phase AC motor of speed control system

作　　者：陈浩[1,2] 吴定祥 康志远 杨增健 唐立军[1,2] 

机构地区：[1]长沙理工大学物理与电子科学学院,湖南长沙410114 [2]近地空间电磁环境监测与建模湖南省普通高校重点实验室,湖南长沙410114 [3]长沙亿旭机电科技有限公司,湖南长沙410000

出　　处：《机电工程》2016年第12期1483-1487,共5页Journal of Mechanical & Electrical Engineering

基　　金：国家科技支撑计划资助项目(2014BAH28F04);湖南省科技重大专项项目(2013FJ1004-3);湖南省教育厅科学研究项目(14C0031;15K009)

摘　　要：针对串励电机调速系统的连续性和稳定性问题,对单相交流串励电机控制电路、保护电路和驱动电路进行了研究,探索了一种通过控制IGBT管的通断来实现斩波式调压方法,提出了一种基于STM32 ARM Cortex-M3内核单片机的调速系统。该系统通过对单相交流串励电机速度的设定值和反馈值的偏差进行增量PID运算,根据PID运算结果计算PWM输出的占空比,来控制IGBT管的通断,从而改变加在单相交流串励电机交流正弦波的时间,达到改变串励电机两端电压的目的,实现串励电机的无级平滑调速。研究结果表明,该系统使用的IGBT管至少比传统系统的少3个,既节约成本又提高了系统的稳定性。Aiming at the problem of continuity and stability of series motor speed control system, the control circuit, protection circuit anddriver circuit of single-phase series motor were researched, a method controlling the IGBT-off to achieve chopper surge was explored, speedcontrol system based on the STM32 ARM Cortex-M3 microcontroller core was proposed. The system through the deviation of single-phase ACseries motor speed setpoint and feedback values for incremental PID control operation. The PWM output duty cycle based on the PID opera-tion result was calculation to control the IGBT turning on and off, the single-phase AC series motor AC sine wave time was changed to achievethe smooth stepless speed. The results indicate that the control system uses less three IGBT than conventional, not only reduces cost but alsoimproves stability.

关 键 词：单相串励电机 调速系统 PWM 

分 类 号：TH39[机械工程—机械制造及自动化]