Torque-maximizing field-weakening control: design, analysis, andparameter selection
Harnefors, L.
Pietilainen, K.
Gertmar, L.
Dept. of Electron., Malardalen Univ., Vasteras ;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb 2001
Volume: 48,
Issue: 1
On page(s): 161-168
ISSN: 0278-0046
References Cited: 19
CODEN: ITIED6
INSPEC Accession Number: 6860891
Digital Object Identifier: 10.1109/41.904576
Current Version Published: 2002-08-07
Abstract
The torque-maximizing field-weakening control scheme proposed by
Kim and Sul is developed further. The performance under imperfect field
orientation conditions is investigated, and it is shown that an
overestimated-rather than an underestimated-model leakage inductance
should be used. A slightly modified algorithm, which offers better
robustness and reduced computational complexity, is presented. The
importance, for good performance, of combining the scheme with current
and speed controllers featuring antiwindup and improved disturbance
rejection is emphasized. The dynamics of the resulting closed-loop
system are analyzed. Obtained in the process, are rules for selection of
all controller parameters, allowing tuning without trial-and error
steps. Good performance of the resulting system is verified
experimentally
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