Title :
A Comparison of a Flux Observer with a Back-Emf Technique for Sensorless Rotor Position Estimation
Author :
Drury, W.D. ; Holliday, D. ; Mellor, P.H.
Author_Institution :
Univ. of Bristol
Abstract :
The performances of sensorless flux observer and back-EMF methods of rotor position estimation in a brushless permanent magnet generator are compared. A simulation model is developed to investigate the accuracy of each method in the presence of electrical distortion and noise. Experimental results show that, over a speed range of 50 -500 rpm, the flux observer is significantly more accurate than the back-EMF method
Keywords :
brushless machines; distortion; noise; observers; parameter estimation; permanent magnet generators; back-emf technique; brushless permanent magnet generator; electrical distortion; electrical noise; flux observer; sensorless rotor position estimation; Current measurement; Distortion measurement; Electrical resistance measurement; Inductance measurement; Permanent magnets; Phase estimation; Position measurement; Rotors; Stators; Voltage; Flux Observer; Machines and Drives; Permanent Magnet Generator; Sensorless Position Estimation;
Conference_Titel :
Universities Power Engineering Conference, 2006. UPEC '06. Proceedings of the 41st International
Print_ISBN :
978-186135-342-9
DOI :
10.1109/UPEC.2006.367572
