旋转变压器/数字转换器在直流电机控制系统中的应用研究  

Application and research on a novel resolver-digital converter in DC motor control system

作　　者：李晓青[1] 陈华泰[1] 董海鹰[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070

出　　处：《电气传动自动化》2013年第5期1-4,共4页Electric Drive Automation

基　　金：甘肃省科技重大专项资助项目(资助号:0801GKDA058)

摘　　要：介绍了一种用于直流电机控制的速度、位置检测方法。该方法采用了新型的旋转变压器/数字转换器AD2S1210,将旋转变压器输出的模拟信号转化为数字信号,运用FPGA来读取位置信号和速度信号并将它们存储在相应的地址中。分析了AD2S1210的工作原理,给出了与FPGA的通讯接口方法及程序的流程图。实验结果表明,应用该方法可以精确地检测电机的位置和速度信号,从而实现电机的多闭环精确控制。A method of rotor position and motor speed detection in DC motor control system is introduced. This method transforms analog signal of resolve to digital signal by using a novel resolver-digital converter AD2S1210. The position and speed signals are read and stored in the corresponding addresses by using the FPGA. The work- ing principle of AD2S1210 is analyzed. A practical communication interface solution of hardware and software be- tween AD2S1210 and FPGA is described in detail. The experimental results show that this method can accurately detect the rotor position and motor speed so as to realize the more precise closed loop control of DC motor.

关 键 词：旋转变压器 数字转换器 直流电机 FPGA 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]