摘要
永磁同步电机要在高速(基速以上)稳定运行,弱磁控制是一种必不可少的控制方式。分析了常用的依赖参数的弱磁方法,并针对这种方法的弊端提出了一种不依赖参数的闭环弱磁方法。具体思路就是通过定子端输出电压来调节直轴去磁电流从而达到弱磁的效果。最后通过实验验证了该方法的实用性。
The control of flux-weakening, is an essential method when the PMSM run in the high speed. A universal method of flux-weakening which relies on the motor oarameter is analYzed, and a close-loon flux-weakening method is But forward for the abuse of the universal method. The sneeific ideas is to adiust the direct axis demagnetizing current through the stator outnut voltage so as to achieve the effect of flux-weakening. At last the oracticabilitv of the new method is verified bY the exoeriments.
出处
《电气传动自动化》
2014年第2期8-11,23,共5页
Electric Drive Automation
关键词
永磁同步电机
弱磁
去磁电流
PMSM
flux-weakeninz
demagnetizing, current
