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A robust air‐gap flux estimation for speed sensorless vector control of double‐star induction machine
Author(s) -
Mimouni M.F.,
Dhifaoui R.
Publication year - 2004
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/acs.814
Subject(s) - control theory (sociology) , stator , double star , vector control , air gap (plumbing) , benchmark (surveying) , induction motor , flux (metallurgy) , star (game theory) , rotor (electric) , filter (signal processing) , computer science , engineering , physics , mathematics , control (management) , mathematical analysis , materials science , mechanical engineering , artificial intelligence , electrical engineering , geodesy , astronomy , voltage , metallurgy , composite material , geography
The paper presents a new direct field‐oriented control (DFOC) for double‐star induction machine (DSIM) drives using the stator currents. First, we propose a new algorithm to estimate air‐gap flux for speed sensorless air‐gap flux orientation control. Compared to the previous DFOC schemes the new one is independent from any motor parameter variation, specially on the stator resistance. Then, the DFOC is associated with a low pass filter (LPF) to solve the dc drift problems caused by the pure integration of air‐gap flux. In the present paper, the rotor resistance is estimated by an algorithm using Lyapunov theory. Good results have been obtained in the benchmark simulations. Copyright © 2004 John Wiley & Sons, Ltd.