基于自适应龙伯格观测器的PMSM无位置传感器研究

Research on PMSM Position Sensorless Based on Adaptive Luenberger Observer

基于龙伯格观测器原理,提出了自适应极点三阶龙伯格观测器,与固定极点三阶龙伯格观测器进行了对比。自适应极点三阶龙伯格观测器可以随着转速的变化而自动调整滤波的效果,在较大转速范围内均有较小的观测误差。仿真和实验验证了自适应极点三阶龙伯格观测器具有更好的观测效果。

Based on the principle of Luenberger observer,an adaptive pole three-order Luenberger observer was proposed and was compared with a fixed pole three-order Luenberger observer.The adaptive pole third-order Luenberger observer could automatically adjust the filtering effect as the speed changes,and had small observation error in a large speed range.The simulation and experiment verify that the adaptive pole three-order Luenberger observer has better observation effect.