摘  要：为了使正弦驱动直流无刷电机控制系统具有较高性价比，提出一种使用线性霍尔传感器作为电机反馈元件的低成本正弦驱动直流无刷电机控制方法。该方法使用线性霍尔传感器代替光电编码器和开关霍尔传感器，从线性霍尔传感器输出信号中得到转子位置和速度信息；在此基础上，讨论了基于数字信号控制器dsPIC30F3010A的三相直流无刷电机控制系统设计，给出了该系统的硬件电路结构和软件设计方法。实现结果表明了所设计控制系统合理可行，具有较高性价比。
关键词：直流无刷电机；正弦驱动；磁场定向控制；数字信号控制器

Abstract: To meet the design requirements of the better performance and lower cost for the brushless DC motor control system based on the sine-driving methods,this paper presented the design method and implementation of the low cost brushless DC motor control system based on the sine-wave driving method,which used linear hall effect sensors as the motor feedback devices.The position and speed information of the rotor can be obtained from the measured linear hall effect sensor signals by using the linear hall effect sensors in place of optical encoders and latched hall effect sensors normally used.Furthermore,the design for three phase brushless DC motor control system based on the digital signal controller dsPIC30F3010A was discussed and the hardware and software design were presented in detail.The experiments results show that the proposed control system is available,reasonable and has the better performance and lower cost.
Key Words: Brushless DC motor;Sine-wave driving;Field-orientated control;Digital signal controller