永磁同步电动机转子位置计算方法  

Calculation of Rotor Position of Permanent Magnet Synchronous Motor

作　　者：李豹[1] 左月飞[1] 胡勤丰[1] 

机构地区：[1]南京航空航天大学,210016

出　　处：《电机技术》2011年第2期10-12,共3页Electrical Machinery Technology

摘　　要：永磁同步电动机在运转之前,转子的位置是未知的,而在矢量控制中必须确定转子的位置才能进行有效的控制。在使用绝对式位置传感器时,利用电机转子装有永磁磁极的特性,通过对电机定子绕组通入直流电,使转子固定在特殊位置。结合解码模块和数字信号处理器,提出了一种精确计算转子位置信息的方法,实验结果验证了该方法的正确性。Before the operation of the permanent magnet synchronous motor,the location of rotor was unknown. It was effective to control only when the location of rotor was ensured in vector transform control.Under the condition of the absolute resolver was used,the rotor would fix at a particular location when a DC voltage was applied into the motor stator windings because of the characteristics of rotor with permanent magnet pole.Then,the location of rotor was figured out by means of combined application of the location signals from decoding module and digital signal processor.The results of the experiment verified the accuracy of the method.

关 键 词：永磁同步电动机 转子位置 绝对式旋转 变压器 直流定位法 

分 类 号：TM313[电气工程—电机]