基于DSP的电机双闭环控制系统

提出了一种基于DSP的电机双闭环控制系统设计方法，解决了采用单片机控制电机时运算速度慢和运用单闭环控制时动态性能不佳的问题。采用速度环和电流环组成双闭环控制系统，运用增量式编码器对直流电机测速和霍尔电流传感器检测电流，充分利用F2812的接口资源，同时结合PI算法实现电机速度精确控制。在MATLABSIMULINK仿真环境中建立直流电机双闭环系统模型，对双闭环控制算法进行仿真并获得到较好的效果。基于DSP的双闭环控制系统结构简单，外围设备少，易进行控制算法的二次开发。

Design of Dual Closed-loop Control System Based on DSP for DC Motor

A DSP-based design schema for dual closed-loop control system of DC motor is put forward.The problems,low speed while the control system is based on SCM and poor dynamic performance while single closed-loop control is used,are resolved in this design schema.Based on the dual closed-loop control system by the composition of speed loop and current loop,and the incremental rotary encoder used to measure the current as well as the Hall current sensor applied to measure the current, in addition, the interfaces of F2812 are fully utilized and PI algorithm is used in this design,thus,this system can achieve the precise control of motor speed.This paper builds a dual closed-loop dc motor system model on MATLAB-SIMULINK.