Open AccessSensorless control of permanent magnet synchronous motor based on adaptive sliding mode observer and sliding mode gain design
Author(s) -
Rui Yang,
Tao Chen
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/631/4/042053
Subject(s) - control theory (sociology) , observer (physics) , sliding mode control , phase locked loop , rotor (electric) , state observer , extended kalman filter , permanent magnet synchronous motor , computer science , kalman filter , mode (computer interface) , engineering , physics , control (management) , artificial intelligence , nonlinear system , telecommunications , jitter , operating system , mechanical engineering , quantum mechanics
Aiming at the chattering problem in the traditional sliding mode observer of permanent magnet synchronous motor, an improved sliding mode observer is designed. The Kalman observer is designed, the phase-locked loop (PLL) control algorithm is introduced, and the problem of phase delay and precision reduction caused by ordinary filter is solved. The simulation results show that the improved sliding mode observer can accurately estimate the rotation speed and reduce the chattering phenomenon in the process of rotor position estimation.