摘要
利用奇异摄动双时间尺度分解理论将永磁直接驱动系统的数学模型分解成快变、慢变电气子系统,在这两个子系统中分别对电机位置和速度进行估计。文中提出了基于滑模观测的反电势位置估计法,仅利用便于测量的电压和电流,就能够估计出电机的磁极位置。实验结果表明,该方法能够基于DSP实现无传感器控制。
Based on two-time-scale of singular perturbation approach is applied to decompose the PMLSM model into fast and slow electrical subsystems. Pole position and speed of motor can be estimated in the two subsystems respectively. The position estimated method of sliding mode observer-back electromagnetic force is put forward. Pole position of motor can be estimated with stator currents and voltages measured easily realized. Experimental results show that the proposed method can implement sensorless control based on DSP.
出处
《微电机》
北大核心
2007年第11期18-21,77,共5页
Micromotors
