A general algorithm for speed and position estimation of AC motors
Harnefors, L.
Nee, H.-P.
Dept. of Electr. Eng., Malardalen Univ., Vasteras ;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb 2000
Volume: 47,
Issue: 1
On page(s): 77-83
ISSN: 0278-0046
References Cited: 22
CODEN: ITIED6
INSPEC Accession Number: 6507834
Digital Object Identifier: 10.1109/41.824128
Current Version Published: 2002-08-06
Abstract
A computationally efficient speed and position estimation
algorithm, generally applicable to AC motor drives, is designed and
analyzed. Applications include: (a) sensorless permanent-magnet and
reluctance synchronous motor drives using the fundamental excitation as
information source; (b) sensorless drives using saliency and signal
injection; and (c) sensored drives using resolvers. Particular attention
is given for case (a). Low parameter sensitivity in the entire speed
range (except at low speeds for the reluctance motor)-implying a small
position estimation error-and good dynamic properties at nominal speeds
are verified
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