永磁同步电机交流调速的电压空间矢量脉宽调制

在永磁同步电机伺服控制系统中,为了提高其交流调速性能,必须降低电机的转矩脉动。介绍了永磁同步电机的多种矢量控制方法,采用电压空间矢量控制,直接对转距进行控制,从而在空间产生圆形旋转磁场,进而获得了恒定的电磁转矩,显著提高了交流调速系统的性能。

Voltage Space Vector Pulse Width Modulation for AC Speed Regulation in Permanent Magnetic Synchronous Motor

In the permanent magnetic synchronous servo control system,to raise its AC speed regulation performance,the motor's torque pulsation must be reduced. Introduction was made to diversity of vector control methods used in permanent magnetic synchronous motor control system. Voltage space vectors were adopted to directly control the torque,so that the circular rotary magnetic fi eld produced and the constant magnetic torque was obtained. The performance of AC speed regulation system has obviously been raised.