永磁同步电机无位置传感器控制系统被引量：16

New method for sensorless control technique of PMSM

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摘要针对传统永磁同步电机无位置传感器控制系统在低速段不能正常实施的问题,提出了一种简单但有效的永磁同步电机无位置传感器控制方法。通过在电机定子绕组中注入高频电压,利用电机的凸极效应,及对电机绕组端电流的处理计算,准确地计算出电机的转子位置和转速,实现无位置传感器控制。为了解决永磁同步电机的启动问题,提出了在电机静止状态下检测转子初始位置的新方法。仿真结果显示了所用方法的有效性和可行性。 A simple but effective sensorless control technique for PMSM is presented in order to solve the failure of low speed operation in traditional technique. A high frequency voltage is injected into the motor and causes a little change of current signal because of the anisotropy of the machine. By processing the current in the armature, rotor position and speed can be calculated accurately. A new way to observe the original rotor position when PMSM is standstill is also presented in order to solve the starting problem of PMSM. The results of simulation show that this method can work feasibly and effectively.

作者石坚汤宁平谭超

机构地区福州大学电气工程与自动化学院西安理工大学自动化学院

出处《电机与控制学报》 EI CSCD 北大核心 2007年第1期50-54,共5页 Electric Machines and Control

关键词无位置传感器永磁同步电机高频信号注入凸极效应 sensorless control PMSM high frequency signal injection saliency effect

分类号 TM301.2 [电气工程—电机]

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