Abstract
Abstract We proposed an induction machine flux observer based on Gopinath’s minimum order observer theory. In this paper, we generalize the design methods showing that up to 10 different kinds can be constructed and that they can be categorized into 4 groups. We construct a flux feedback type vector controller incorporating the proposed flux observer, and confirm its effectiveness with both numerical simulations and experiments. Finally, we introduce a novel approach to reducing parameter sensitivity based on using all degrees of freedom inherent in the flux observer’s gain matrix.
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