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H ‐∞ disturbance attenuation control of induction motor
Author(s) -
Ding Gang,
Wang Xunxian,
Han Zengjin
Publication year - 2000
Publication title -
international journal of adaptive control and signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 66
eISSN - 1099-1115
pISSN - 0890-6327
DOI - 10.1002/(sici)1099-1115(200003/05)14:2/3<223::aid-acs580>3.0.co;2-5
Subject(s) - control theory (sociology) , induction motor , attenuation , linearization , mathematics , observer (physics) , tracking error , computer science , engineering , nonlinear system , control (management) , physics , optics , voltage , artificial intelligence , quantum mechanics , electrical engineering
State‐space H ‐ ∞ approach is employed to attenuate norm‐bounded disturbances with time‐varying coefficient in uncertain linear systems. The proposed method is applied to the feedback linearization control of non‐linear induction motors (Ortego et al ., 1998) subject to unknown time‐varying rotor resistance and load torque. Robust stability and tracking performances of rotor speed and flux amplitude are guaranteed by solving Riccati inequalities. When the flux cannot be measured, a simple observer is added and the observer error is dealt with as an external disturbance. The method is also applied to position tracking. Simulation results based on benchmark tests demonstrate the efficiency of the proposed approach. Copyright © 2000 John Wiley & Sons, Ltd.