基于PMSM的二阶滑模无位置传感器控制

摘要/Abstract

摘要： 根据Super-twisting算法设计了二阶STASMO无位置传感器控制方案,该方案不仅充分地抑制了抖振现象,而且取消了低通滤波器的使用。当电机运行时,定子电阻会随着温度的升高而变化,研究了旋转坐标系下的定子电阻观测器方案来实时观测定子电阻,避免了定子电阻变化对电机位置或速度估计精度的影响。仿真分析表明该方案对电机位置或速度有较高的估计精度。

关键词: 永磁同步电机, 超螺旋算法滑模观测器, 无位置传感器控制, 定子电阻观测器

Abstract: The designs a second-order STASMO position sensorless control scheme based on the Super-twisting algorithm, which not only sufficiently suppresses chattering, but also eliminates the use of low-pass filters. When the motor is running, the stator resistance will change as the temperature rises. The proposes a stator resistance observer scheme in the rotating coordinate system to observe the stator resistance in real time, the influence of the change of the stator resistance on the accuracy of the position or speed estimation of the motor is avoided. The simulation analysis of the scheme proposed, it is proved that the scheme proposed has higher estimation accuracy for the motor position or speed.

Key words: permanent magnet synchronous motor (PMSM), super-twisting algorithm based sliding-mode observer (STASMO), position sensorless control, stator resistance observer

中图分类号:

TM351
TM464

蔡军, 李鹏泽, 黄袁园. 基于PMSM的二阶滑模无位置传感器控制[J]. 微特电机, 2021, 49(1): 32-36.

CAI Jun, LI Peng-ze , HUANG Yuan-yuan. PMSM Based Second-Order Sliding Mode Position Sensorless Control[J]. Small & Special Electrical Machines, 2021, 49(1): 32-36.

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