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 proceedingConference contribution

4 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 languageEnglish
Title of host publicationConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
DOIs
Publication statusPublished - 2012
Event2012 IEEE Industry Applications Society Annual Meeting, IAS 2012 - Las Vegas, NV
Duration: 2012 Oct 72012 Oct 11

Other

Other2012 IEEE Industry Applications Society Annual Meeting, IAS 2012
CityLas Vegas, NV
Period12/10/712/10/11

Fingerprint

Speed control
Rolling mills
Kalman filters
Poles
Loads (forces)
Dynamical systems
Torque
Polynomials
Optimal design

Keywords

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

ASJC Scopus subject areas

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

Cite this

Tokunaga, A., Nakamura, M., Takami, H., & Okamoto, T. (2012). An optimal observer design for 2-inertia system via ILQ design method. In Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) [6374005] https://doi.org/10.1109/IAS.2012.6374005

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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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