H control of the magnetic bearing considering initial state uncertainties

Toru Namerikawa, Wataru Shinozuka

Research output: Contribution to conferencePaper

6 Citations (Scopus)

Abstract

This paper deals with an application of H control attenuating initial-state uncertainties to the magnetic bearing and examines the H control problem, which treats a mixed Disturbance and an Initial-state uncertainty Attenuation(DIA) control. The mixed H DIA problem supplies H controls with good transients and assures H controls of robustness against initial-state uncertainty. On the other hand, active magnetic bearings allow contract-free suspension of rotors and they are used for various industrial purposes. We derive a mathematical model of the magnetic bearing which has complicated rotor dynamics and nonlinear magnetic property. Then we apply this proposed H DIA control for the magnetic bearing, and design a robust H controller both for exogenous disturbances and for initial state uncertainties of the plant. Experimental results show that the proposed robust control approach is effective for improving transient response and robust performance.

Original languageEnglish
Pages275-280
Number of pages6
Publication statusPublished - 2004 Jul 12
Externally publishedYes
EventProceedings - 8th IEEE International Workshop on Advanced Motion Control, AMC'04 - Kawasaki, Japan
Duration: 2004 Mar 252004 Mar 28

Other

OtherProceedings - 8th IEEE International Workshop on Advanced Motion Control, AMC'04
CountryJapan
CityKawasaki
Period04/3/2504/3/28

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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    Namerikawa, T., & Shinozuka, W. (2004). H control of the magnetic bearing considering initial state uncertainties. 275-280. Paper presented at Proceedings - 8th IEEE International Workshop on Advanced Motion Control, AMC'04, Kawasaki, Japan.