Title :
Rotor position estimation method of permanent magnet synchronous motor based on high frequency signal injection and sliding mode observer
Author :
Wang, Hui ; Wang, Changsong ; Deng, Yafeng ; Wang, Zhiyu ; Liu, Hongxia
Author_Institution :
Mech. Eng. Sch., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
In the motion control of the sensorless permanent magnet synchronous motor system, the accurate detection of the rotor position at low or zero speed can improve control precision and enhance reliability. In this paper, a sliding mode observer is proposed based on the high frequency signal injection to estimate rotor position of the sensorless permanent magnet synchronous motor. Simulation results verify this sliding mode observer with good dynamic performance and strong robustness can accurately track the rotor position.
Keywords :
motion control; observers; permanent magnet motors; position control; rotors; sensorless machine control; synchronous motors; variable structure systems; high frequency signal injection; motion control; rotor position estimation method; sensorless permanent magnet synchronous motor system; sliding mode observer; Frequency conversion; Frequency estimation; Least squares methods; Mirrors; Nonlinear distortion; Permanent magnet motors; Polynomials; Robotics and automation; Rotors; Spline; high frequency signal injection; low or zero speed; permanent magnet synchronous motor; sliding mode observer;
Conference_Titel :
Informatics in Control, Automation and Robotics (CAR), 2010 2nd International Asia Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-5192-0
Electronic_ISBN :
1948-3414
DOI :
10.1109/CAR.2010.5456815
