关键词: 永磁同步电机, 无位置传感器控制, 超螺旋算法, 滑模观测器, 自适应, 稳定性

Abstract: An improved adaptive super-helical sliding mode observer was proposed to address the shortcomings of the conventional super twisting sliding mode observer. In order to improve the observer performance, two linear terms of error gain were added to the base structure of the super-twisting sliding mode observer. In order to solve the instability of the system caused by the constant gain parameter during operation and the problem of too many parameters, a approach of parameter integration and its self-adaptation was proposed to improve the parameter robustness of the observer, and a theoretical proof of Lyapunov stability is given. The simulation results show that the adaptive super-helical sliding mode
observer proposed demonstrated good effectiveness in suppressing oscillations and improving the accuracy of extracting the rotor position and rotor speed.

Key words: permanent magnet synchronous motor, position sensorless control, super-twisting algorithm, sliding mode observer,adaptive,stability