LQG/LTR robust control of an AC induction servo drive

Hsiang Jui Wu; Ying-Yu Tzou

doi:10.1109/PESC.1991.162738

LQG/LTR robust control of an AC induction servo drive

Hsiang Jui Wu^*, Ying-Yu Tzou

^*Corresponding author for this work

National Chiao Tung University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

The robust control of an AC induction servo drive is examined. The linear-quadratic-Gaussian with loop-transfer-recovery (LQG/LTR) methodology is used for the servo compensator design to improve the drive performance and meet the stability-robustness specifications in the frequency domain. Based on the principle of indirect field orientation, a simplified model of the current-decoupled induction drive is constructed and used for the design of the proposed servo control scheme. Experimental results are presented to show that LQG/LTR design is a viable approach, and that problems associated with the parameter variation, plant uncertainty, and load disturbances can be solved.

Original language	English
Title of host publication	PESC Record - IEEE Power Electronics Specialists Conference
Publisher	Publ by IEEE
Pages	613-619
Number of pages	7
ISBN (Print)	0780300904
DOIs	https://doi.org/10.1109/PESC.1991.162738
State	Published - 1 Oct 1991
Event	22nd Annual IEEE Power Electronics Specialists Conference - PESC '91 - Boston, MA, USA Duration: 24 Jun 1991 → 27 Jun 1991

Publication series

Name	PESC Record - IEEE Power Electronics Specialists Conference
ISSN (Print)	0275-9306

Conference

Conference	22nd Annual IEEE Power Electronics Specialists Conference - PESC '91
City	Boston, MA, USA
Period	24/06/91 → 27/06/91

Access to Document

10.1109/PESC.1991.162738

Link to publication in Scopus

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AB - The robust control of an AC induction servo drive is examined. The linear-quadratic-Gaussian with loop-transfer-recovery (LQG/LTR) methodology is used for the servo compensator design to improve the drive performance and meet the stability-robustness specifications in the frequency domain. Based on the principle of indirect field orientation, a simplified model of the current-decoupled induction drive is constructed and used for the design of the proposed servo control scheme. Experimental results are presented to show that LQG/LTR design is a viable approach, and that problems associated with the parameter variation, plant uncertainty, and load disturbances can be solved.

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