Title :
Sensorless estimation and convergence analysis based on MRAS for PMSM
Author :
Wu, Maogang ; Zhao, Rongxiang ; Wang, Junwei
Author_Institution :
Coll. of Autom., Hangzhou Dianzi Univ., Hangzhou, China
Abstract :
The sensorless estimation principle of rotor speed and position for PMSM by MRAS is given, simulation models are made, simulation results are obtained. Steady estimation errors of speed and position are analyzed after motor parameters change by simulation, dynamic estimation responses and convergence are analyzed under sudden increasing load. Steady speed estimation error can be restrained by PI controller under different parameters change, dynamic estimation performances are different under sudden load change, which depends mainly on system structure and PI controller performance.
Keywords :
PI control; model reference adaptive control systems; permanent magnet motors; sensorless machine control; synchronous motors; MRAS; PI controller; PMSM; convergence analysis; model reference adaptive system; permanent magnet synchronous motor; sensorless estimation; simulation models; steady speed estimation error; Adaptation model; Analytical models; Estimation; Induction motor drives; Load modeling; Stability analysis; Synchronous motors; model reference adaptive system; permanent magnet synchronous motor; sensorless;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5554717
