无位置传感器直流无刷电机转子位置检测新方法的研究  

Study of Rotor's Position Detection Method for Sensorless Brushless DC Electromotor

作　　者：羊彦[1] 景占荣[1] 陈文斌[1] 杨旭[1] 

机构地区：[1]西北工业大学

出　　处：《电气传动》2004年第2期20-23,共4页Electric Drive

摘　　要：文章推出一种利用开关脉冲同步技术实现的直流无刷电机转子位置的检测方法,它利用大功率器件开关噪声熄灭的瞬间,对三相驱动模块的状态进行检测,从而判断转子过零点的到达时间,并利用状态预测的方法进行校正,推算三相功率器件的导通时间。实验证明,这种位置检测方法检测精度高、抗干扰能力强,实现容易。This passage has expounded on a method of detecting the rotor's position of brushless DC motor using the switch pulse synchronous techniques. In the moment when the switch-noise of upper transistor went out, the state of three-phase driving module is detected. From the detection, we can obtain the right time when rotor reaches the zero point, conduct emendation on the detection data by means of state predict, and then con-clude the switch on time of three-phase power transistor. As the results show, the method proves to be highly precise, of strong anti-interference ability, and it is easy for realization.

关 键 词：直流无刷电机 无位置传感器 转子位置 检测方法 反电动势法 逆变器 功率器件 

分 类 号：TM33[电气工程—电机]