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A dynamic decoupling control scheme for high-speed operation of induction motors SCIE SCOPUS

Title
A dynamic decoupling control scheme for high-speed operation of induction motors
Authors
Jung, JNam, K
Date Issued
1999-02
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGI
Abstract
In a high-speed operation of a vector-controlled induction motor, coupling between d-q current dynamics impairs the characteristics of torque response, The feedforward decoupling scheme does not perform well if there exists an error in the motor parameter estimation. We derive a dynamic decoupling condition when the two additional proportional integral current controllers are used. A great advantage of this dynamic decoupling controller is the robustness to the motor parameter estimation errors. Further, we observe that overmodulation methods lead to the violation of the decoupling condition, thereby yielding a poor performance in the high-speed high-power operation, As a method of resolving this problem, we propose a decoupling preserving overmodulation algorithm which also enhances the torque transient response, Through simulation and experimental results, we demonstrate the improved performance of the proposed controller.
Keywords
coupling; decoupling preserving overmodulation; dynamic decoupling; feedforward decoupling; high-speed operation; overmodulation; robustness
URI
https://oasis.postech.ac.kr/handle/2014.oak/20511
DOI
10.1109/41.744397
ISSN
0278-0046
Article Type
Article
Citation
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 46, no. 1, page. 100 - 110, 1999-02
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남광희NAM, KWANG HEE
Dept of Electrical Enginrg
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