TMS320F240视域下无位置传感器无刷直流电机控制系统研究

Research on Sensorless Brushless DC Motor Control System under Sight of TMS320F240

该文主要对无位置传感器无刷直流电机的基于DSP的控制系统进行研究.采用无刷直流电机的端电压过零检测方法提取转子位置信号.利用DSP快速运算的优越性来处理反电动势的干扰信号,通过对电机启动的预定位方法的介绍,从而对电机系统中电流控制的双环闭系统进行了构建,对于电机的软硬件双方面都能够进行较好的控制.

This paper mainly studies the control system of position sensorless brushless DC motor based on DSP. Using the zero - crossing detection method of terminal voltage of brushless DC motor to extract the rotor position signal. Utilizing the DSP superiority of fast computing to handle the interference signal of counter electromotive force, through the introduction about pretargeting method of motor start, and thus construeting the bicyclic closed system of current control in the motor system,which can better control the hardware and software of the motor.