贴面式永磁同步电机无传感器控制策略的研究  

The Research of Surface Permanent Magnet Synchronous Motor Sensorless Control Strategy

作　　者：宋正强[1] 

机构地区：[1]扬州市职业大学,汽车与电气工程系,江苏扬州225011

出　　处：《电力电子技术》2010年第11期69-71,共3页Power Electronics

基　　金：扬州职业大学博士科研基金项目(07T02)~~

摘　　要：贴面式永磁同步电机(Surface Permanent Magnet Synchronous Motor,简称SPMSM)的无传感器控制在低速和静止时一直存在难以检测和估算转子位置的问题,针对该情况提出了一种新的无传感器控制策略。转子初始位置检测是根据定子铁心的非线性磁化特性,采用电压脉冲矢量法(Voltage Pulse Vector Method,简称VPVM)。此方法无需电机参数及额外的硬件设施,当电机开始运行时,由闭环自适应磁通观测器估算转子位置、速度。利用TMS320F240搭建的硬件实验平台,验证了该方法的有效性。A new approach voltage pulse vector method（VPVM） aiming at sensorless speed control and initial rotor position estimation for a surface permanent magnet synchronous motor（SPMSM）drive is presented.At a rotating condition,speed and rotor position estimation of SPMSM drive is obtained through a self-adaptive flux observer（SAO）by only measuring phase voltages and currents.The initial rotor position is performed by using the nonlinear magnetization characteristics of the stator core caused by the rotor magnets.Experimental results show that in both steady and transient state,the system can all achieve expected performances.

关 键 词：永磁同步电机 无传感器控制 电压脉冲矢量法 自适应观测器 

分 类 号：TM46[电气工程—电器]