Improving the rotational and transient performance of magnetic bearings by the H DIA control

Toru Namerikawa, Hiroki Seto

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

1 Citation (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 rotational performance, transient response and robust performance.

Original languageEnglish
Title of host publicationProceedings of the American Control Conference
Pages2907-2912
Number of pages6
Volume4
Publication statusPublished - 2005
Externally publishedYes
Event2005 American Control Conference, ACC - Portland, OR, United States
Duration: 2005 Jun 82005 Jun 10

Other

Other2005 American Control Conference, ACC
CountryUnited States
CityPortland, OR
Period05/6/805/6/10

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ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Namerikawa, T., & Seto, H. (2005). Improving the rotational and transient performance of magnetic bearings by the H DIA control. In Proceedings of the American Control Conference (Vol. 4, pp. 2907-2912)