LMI gain-scheduled H∞ control of instationary flexible rotor/magnetic bearing systems

M Schlotter; P S Keogh

LMI gain-scheduled H∞ control of instationary flexible rotor/magnetic bearing systems

Department of Mechanical Engineering

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Abstract

The plant dynamics of rotor/magnetic bearing systems are parameter dependent on the rotation speed due to gyroscopic effects. This paper introduces a novel robust gain-scheduled H? controller design method based on LMI techniques which allows the formulation of multiple design objectives in one unified framework. In particular, hard/soft control design is considered, and the importance of achieving performance over the whole speed range is addressed. If speed dependence is ignored in the controller design, system instability might occur. However, the LMI based approach is shown to maintain closed loop stability over the full speed range.

Original language	English
Title of host publication	Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11
Publisher	ASME
Pages	789-797
ISBN (Print)	9781604236774
Publication status	Published - Feb 2006
Event	11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11) - Honolulu, Hawaii, USA United States Duration: 26 Feb 2006 → 2 Mar 2006

Conference

Conference	11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11)
Country/Territory	USA United States
City	Honolulu, Hawaii
Period	26/02/06 → 2/03/06

Cite this

LMI gain-scheduled H∞ control of instationary flexible rotor/magnetic bearing systems. / Schlotter, M; Keogh, P S.
Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11. ASME, 2006. p. 789-797.

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Schlotter, M & Keogh, PS 2006, LMI gain-scheduled H∞ control of instationary flexible rotor/magnetic bearing systems. in Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11. ASME, pp. 789-797, 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11), Honolulu, Hawaii, USA United States, 26/02/06.

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abstract = "The plant dynamics of rotor/magnetic bearing systems are parameter dependent on the rotation speed due to gyroscopic effects. This paper introduces a novel robust gain-scheduled H? controller design method based on LMI techniques which allows the formulation of multiple design objectives in one unified framework. In particular, hard/soft control design is considered, and the importance of achieving performance over the whole speed range is addressed. If speed dependence is ignored in the controller design, system instability might occur. However, the LMI based approach is shown to maintain closed loop stability over the full speed range.",

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N2 - The plant dynamics of rotor/magnetic bearing systems are parameter dependent on the rotation speed due to gyroscopic effects. This paper introduces a novel robust gain-scheduled H? controller design method based on LMI techniques which allows the formulation of multiple design objectives in one unified framework. In particular, hard/soft control design is considered, and the importance of achieving performance over the whole speed range is addressed. If speed dependence is ignored in the controller design, system instability might occur. However, the LMI based approach is shown to maintain closed loop stability over the full speed range.

AB - The plant dynamics of rotor/magnetic bearing systems are parameter dependent on the rotation speed due to gyroscopic effects. This paper introduces a novel robust gain-scheduled H? controller design method based on LMI techniques which allows the formulation of multiple design objectives in one unified framework. In particular, hard/soft control design is considered, and the importance of achieving performance over the whole speed range is addressed. If speed dependence is ignored in the controller design, system instability might occur. However, the LMI based approach is shown to maintain closed loop stability over the full speed range.

M3 - Chapter in a published conference proceeding

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EP - 797

BT - Proceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11

PB - ASME

T2 - 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11)

Y2 - 26 February 2006 through 2 March 2006

ER -

LMI gain-scheduled H∞ control of instationary flexible rotor/magnetic bearing systems

Abstract

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