【摘要】 文章对利用反电势三次谐波检测无刷直流电机转子位置的方法进行了介绍,此方法比传统的直接利用反电势的方法实现简单,检测速度范围更宽,而且不需要移相和深度滤波。并且文中还述及了获取三次谐波的两种方法:一种依靠电机中性线,一种不需要电机中性线。更多还原

【Abstract】 A method for detecting rotor position of brushless DC motor based on counter emf third harmonic is introduced in this paper.This method is more easier than that employing counter emf.It has wide speed detection range and needn’t phase shifting and depth filtering.The two methods for obtaining the third harmonic are also described,i.e.one relies on the neutral line of electric machine,and the other not.更多还原