PMSM无位置传感器控制中的相电流检测  

Phase Current Check Method for Sensorless Control of PMSM

作　　者：汪华峰[1] 王远波[1] 

机构地区：[1]西南交通大学,四川成都610031

出　　处：《微特电机》2009年第10期37-39,42,共4页Small & Special Electrical Machines

摘　　要：在PMSM的无位置和无速度传感器控制驱动方面,构建了一种基于滑模变结构理论的状态观测器,同时,针对传统的三相电流检测或母线电流检测方式中存在的不足,根据基尔霍夫定理,提出了一种更为经济简洁的相电流检测方法,应用于PMSM矢量控制系统中,能准确有效地估算出转子磁链位置角。最后,采用TMS320C24X验证了检测和控制方法的正确性。At the sensorless control and drive aspect of permanent magnetism synchronous motor（ PMSM）, a new state estimation algorithm for sensorless control of PMSM was designed in this paper. At the same time, a simpler and more direct phase current check method was put forward to compensate for the deficiency existed in the three-phase current or the bus current check method. The application in PMSM vector control helped gain the exact and efficient estimation of rotor posi- tion. Experimental results based on TMS320C24X verifies the correctness of sensorless algorithm and current detecting.

关 键 词：无位置传感器 DSP PMSM 滑模观测器 电流检测 

分 类 号：TM341[电气工程—电机] TM351