Abstract：Based on the chattering problem and the dependence of the parameters in the running process, a Sigmoid function is used and an equation of the soliding mode gain and the estimated back-EMF is built to weaken the chattering problem, finally the signal of speed and Angle was obtained with a FO-SPLL, this method reduce error and complexity comparing with the traditional calculation method. Then a Matlab platform was built to validate this method, the experimental results show that the improved sliding mode observer can improve the response speed, strong robustness and inhibit the chattering to a certain extent, on the other hand it also can improve the dynamic performance and accuracy.
张润波, 林荣文, 高靖凯. 基于改进滑模观测器的PMSM无位置传感器的研究[J]. 电气技术, 2016, 17(1): 51-54.
Zhang Runbo, Lin Rongwen, Gao Jingkai. Research on Sensorless Control Method of PMSM based on an Improved Sliding Mode Observer. Electrical Engineering, 2016, 17(1): 51-54.
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2016, Vol. 17 
