Robust vector control of induction motors using full-order observer in consideration of core loss
Hasegawa, M.; Furutani, S.; Doki, S.; Okuma, S.
Industrial Electronics, IEEE Transactions on
Volume 50, Issue 5, Oct. 2003 Page(s): 912 - 919
Digital Object Identifier   10.1109/TIE.2003.817606
Summary:This paper proposes a method for designing a robust full-order observer for vector-controlled induction motors taking core loss into account. Although conventional research focuses on parameter identification, global stability of the identification remains questionable. Therefore, robustness against some parameters is required. This paper describes the design of a robust full-order observer which takes core loss into account, using both the gain-scheduled H_∞ control and the linear matrix inequality technique. This design always results in a stable controller. The robustness of the proposed method against variations of resistances is evaluated by experiments.

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