永磁无刷直流电机控制系统的研究  

Research on Control System of Permanent Magnet Brushless DC Motor

作　　者：王元月[1] WANG Yuan-yue(Shaoxing Vocational and Technical College, Shaoxing 312000, Chin)

机构地区：[1]绍兴职业技术学院,浙江绍兴312000

出　　处：《煤矿机械》2018年第3期47-49,共3页Coal Mine Machinery

基　　金：高等学校访问工程师校企合作项目(FG2016112)

摘　　要：为了提高永磁无刷直流电机的可靠性和稳定性,设计了一款以STM32单片机为核心的永磁无刷直流电机控制系统,采用了通过续流相电流斜率阈值的方法来检测反电势过零点,以此来获取转子位置,确定换相时刻,实现电机平稳运行。实验结果表明该方法能准确有效检测相反电势过零点,系统运行稳定可靠。In order to improve reliability and stability for the permanent magnet brushless DC motor, the design of a STM32 microcontroller as the core of the permanent magnet brushless DC motor control system, using the method of phase current flow through a continuous slope threshold to detect the back EMF, in order to obtain the rotor position to determine the commutation time to achieve stable operation of motor. The experimental results show that the method can effectively detect the zero crossing point of the opposite EMF, and the system is stable and reliable.

关 键 词：永磁无刷直流电机 反电势检测法 电流斜率 

分 类 号：TM33[电气工程—电机]