Title :
Improvement of low speed operation of electric machine with an inertia identification using ROELO
Author :
Lee, K.B. ; Yoo, J.Y. ; Song, J.H. ; Choy, I.
Author_Institution :
Dept. of Electr. Eng., Korea Univ., Seoul, South Korea
Abstract :
A new scheme to estimate the moment of inertia in the motor drive system in very low speed is proposed. The simple speed estimation scheme, which is used in most servo systems for low-speed operation, is sensitivity to variations in machine parameters especially the moment of inertia. To estimate the motor inertia value, a reduced-order extended Luenberger observer (ROELO) is applied. The effectiveness of the proposed ROELO is verified by simulation and experiment.
Keywords :
induction motor drives; observers; parameter estimation; 220 V; 400 W; ROELO; electric machine; induction motor; inertia identification; low speed operation; moment of inertia estimation; motor drive system; reduced-order extended Luenberger observer; sensitivity; servo systems;
Journal_Title :
Electric Power Applications, IEE Proceedings -
DOI :
10.1049/ip-epa:20031009
