直流无刷伺服电机调速系统设计  

Design of Speed Regulating System for Brushless DC Servo Motor

作　　者：侯利朋[1] 李杰[1,2] 刘俊[1,2] 陈伟 

机构地区：[1]中北大学电子测试技术国防科技重点实验室,太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,太原030051 [3]山西北方惠丰机电有限公司科研设计二所,山西长治046012

出　　处：《计算机测量与控制》2015年第6期2126-2127,2131,共3页Computer Measurement &Control

基　　金：国家自然科学基金(50905169)

摘　　要：针对传感器对直流无刷伺服电机直接进行模拟控制时,存在调速精度不高、电压不匹配及转速波动大等问题,设计了一种PWM变频调速系统;该系统通过ADS8365将来自传感器的模拟信号转换为数字信号,应用TMS320F2812对采集到的数字信号进行相应处理,并通过计算输出相应频率的PWM信号,PWM信号经过光电耦合器进行电平转换后作为电机的控制信号,控制电机的转速;以MEMS陀螺仪为传感器的调速试验证明,该系统结构简单,能够准确控制电机的转速,并能有效减小转速波动。Against the fact that analog control to brushless DC servo motors has the disadvantages of low speed accuracy, voltage mismatch, big speed fluctuation, designed variable frequency PWM regulating system. ADS8365 is used to convert the analog signal to digital one. TMS320F2812 is used to process the digital data and output corresponding PWM wave. The voltage of PWM wave is converted by optical couplers to match the motor, so that it can regulate the speed of motor. Speed test, using MEMS gyroscope as sensor, shows that this system, with advantage of simple structure, can regulate the speed of motor accurately and reduce speed fluctuation .

关 键 词：直流无刷伺服电机 调速系统 陀螺仪 模数转换 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]