An optimal observer design for 2-inertia system via ILQ design method

Atsushi Tokunaga; Masashi Nakamura; Hiroshi Takami; Tetsuya Okamoto

doi:10.1109/IAS.2012.6374005

An optimal observer design for 2-inertia system via ILQ design method

Atsushi Tokunaga, Masashi Nakamura, Hiroshi Takami, Tetsuya Okamoto

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

5 Citations (Scopus)

Abstract

This paper presents a novel optimal observer for speed control in 2-inertia dynamic system such as a large scale rolling mill, coupled with flexible shaft which has resonant torsional oscillation. For suppressing oscillation and reducing disturbance load torque, we introduce a full-order observer with concept of Kalman filter on a basis of inverse linear quadratic (ILQ) design method, including disturbance observer. In this paper, the ILQ design method improved by polynomial pole assignment gives an analytical optimal gain, and makes the errors of outputs converge to zero in steady-state. The proposed observer enables to suppress vibration and to control at high precise speed control in the 2-inertia system in spite of the quick speed response.

Original language	English
Title of host publication	2012 IEEE Industry Applications Society Annual Meeting, IAS 2012
DOIs	https://doi.org/10.1109/IAS.2012.6374005
Publication status	Published - 2012 Dec 1
Event	2012 IEEE Industry Applications Society Annual Meeting, IAS 2012 - Las Vegas, NV, United States Duration: 2012 Oct 7 → 2012 Oct 11

Publication series

Name	Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ISSN (Print)	0197-2618

Conference

Conference	2012 IEEE Industry Applications Society Annual Meeting, IAS 2012
Country/Territory	United States
City	Las Vegas, NV
Period	12/10/7 → 12/10/11

Keywords

2-inertia system
Disturbance observer
Full-order observer
ILQ design method
Optimal observer
State feedback control
Torsional system

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1109/IAS.2012.6374005

Cite this

An optimal observer design for 2-inertia system via ILQ design method. / Tokunaga, Atsushi; Nakamura, Masashi; Takami, Hiroshi et al.

2012 IEEE Industry Applications Society Annual Meeting, IAS 2012. 2012. 6374005 (Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)).

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

Tokunaga, A, Nakamura, M, Takami, H & Okamoto, T 2012, An optimal observer design for 2-inertia system via ILQ design method. in 2012 IEEE Industry Applications Society Annual Meeting, IAS 2012., 6374005, Conference Record - IAS Annual Meeting (IEEE Industry Applications Society), 2012 IEEE Industry Applications Society Annual Meeting, IAS 2012, Las Vegas, NV, United States, 12/10/7. https://doi.org/10.1109/IAS.2012.6374005

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title = "An optimal observer design for 2-inertia system via ILQ design method",

abstract = "This paper presents a novel optimal observer for speed control in 2-inertia dynamic system such as a large scale rolling mill, coupled with flexible shaft which has resonant torsional oscillation. For suppressing oscillation and reducing disturbance load torque, we introduce a full-order observer with concept of Kalman filter on a basis of inverse linear quadratic (ILQ) design method, including disturbance observer. In this paper, the ILQ design method improved by polynomial pole assignment gives an analytical optimal gain, and makes the errors of outputs converge to zero in steady-state. The proposed observer enables to suppress vibration and to control at high precise speed control in the 2-inertia system in spite of the quick speed response.",

keywords = "2-inertia system, Disturbance observer, Full-order observer, ILQ design method, Optimal observer, State feedback control, Torsional system",

author = "Atsushi Tokunaga and Masashi Nakamura and Hiroshi Takami and Tetsuya Okamoto",

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PY - 2012/12/1

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N2 - This paper presents a novel optimal observer for speed control in 2-inertia dynamic system such as a large scale rolling mill, coupled with flexible shaft which has resonant torsional oscillation. For suppressing oscillation and reducing disturbance load torque, we introduce a full-order observer with concept of Kalman filter on a basis of inverse linear quadratic (ILQ) design method, including disturbance observer. In this paper, the ILQ design method improved by polynomial pole assignment gives an analytical optimal gain, and makes the errors of outputs converge to zero in steady-state. The proposed observer enables to suppress vibration and to control at high precise speed control in the 2-inertia system in spite of the quick speed response.

AB - This paper presents a novel optimal observer for speed control in 2-inertia dynamic system such as a large scale rolling mill, coupled with flexible shaft which has resonant torsional oscillation. For suppressing oscillation and reducing disturbance load torque, we introduce a full-order observer with concept of Kalman filter on a basis of inverse linear quadratic (ILQ) design method, including disturbance observer. In this paper, the ILQ design method improved by polynomial pole assignment gives an analytical optimal gain, and makes the errors of outputs converge to zero in steady-state. The proposed observer enables to suppress vibration and to control at high precise speed control in the 2-inertia system in spite of the quick speed response.

KW - 2-inertia system

KW - Disturbance observer

KW - Full-order observer

KW - ILQ design method

KW - Optimal observer

KW - State feedback control

KW - Torsional system

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An optimal observer design for 2-inertia system via ILQ design method

Abstract

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Keywords

ASJC Scopus subject areas

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