Online Identification of Stator Transient Inductance in Rotor-Flux-Oriented Induction Motor Drive
Myoung-Ho Shin
Dong-Seok Hyun
Seoul Nat. Univ. of Technol., Seoul;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Aug. 2007
Volume: 54,
Issue: 4
On page(s): 2018-2023
ISSN: 0278-0046
INSPEC Accession Number: 9607796
Digital Object Identifier: 10.1109/TIE.2007.895151
Current Version Published: 2007-07-16
Abstract
In a rotor-flux-oriented induction motor drive, stator transient inductance is varied with the change of operating conditions. If the stator transient inductance is not tuned, the field orientation cannot be obtained. As a result, q-axis rotor flux does not become zero, and the performance is deteriorated. This paper shows the problems caused by the detuning of stator transient inductance and proposes a simple online tuning scheme of stator transient inductance for an indirect rotor flux-oriented induction motor drive. Stator transient inductance is estimated only by stator voltage and stator current. The proposed method is verified by simulation and experimental results.
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