A novel space-vector current regulation scheme for afield-oriented-controlled induction motor drive
Yi-Hwa Liu
Chern-Lin Chen
Rong-Jie Tu
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei ;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Oct 1998
Volume: 45,
Issue: 5
On page(s): 730-737
ISSN: 0278-0046
References Cited: 8
CODEN: ITIED6
INSPEC Accession Number: 6041971
Digital Object Identifier: 10.1109/41.720329
Current Version Published: 2002-08-06
Abstract
The system performance of an AC variable-speed drive directly
depends on the current regulation. In this paper, a novel space-vector
current regulation scheme for a field-oriented controller (FOC) is
developed. Motor currents are regulated by generating appropriate
inverter output voltage vectors via software-implemented comparators and
a switching table. A switching table based on the angular coordinate
enables the inverter to generate optimal voltage vectors. By introducing
an additional triangular carrier signal to the output of original
hysteresis comparators, a user-selectable high and fixed switching
frequency can be obtained, further improving the driver performance.
Experiments are made to verify the effectiveness and correctness of this
proposed method. According to the experimental results, both simple
hardware design and good current response can be attained
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