Observers for flux estimation in induction machines
Verghese, G.C.
Sanders, S.R.
Lab. for Electromagn. & Electron. Syst., MIT, Cambridge, MA;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb 1988
Volume: 35,
Issue: 1
On page(s): 85-94
ISSN: 0278-0046
References Cited: 29
CODEN: ITIED6
INSPEC Accession Number: 3130956
Digital Object Identifier: 10.1109/41.3067
Current Version Published: 2002-08-06
Abstract
Flux estimation in induction machines is examined from the
viewpoint of observer theory. It is pointed out that estimators
presently used in connection with schemes such as field-oriented control
are typically real-time simulations of machine equations, without
feedback of any corrective prediction error. It is shown that corrective
feedback can be used to speed up convergence of the flux estimates. It
can also reduce the sensitivity of the estimates to parameter variations
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