Q-parameterization/μ control of an electromagnetic suspension system

Abdelfatah M. Mohamed, Fumio Matsumura, Toru Namerikawa, Jun Ho Lee

Research output: Contribution to conferencePaper

13 Citations (Scopus)

Abstract

This paper presents a new controller design methodology for an electromagnetic suspension system using the Q-parameterization theory and μ-analysis, in order to achieve both robust stability and robust performance. The set of all stabilizing controllers of the plant is characterized by a free parameter Q. This free parameter is chosen through optimization such that both robust stability and robust performance are achieved. First, we describe the experimental setup and give a mathematical model for the electromagnetic suspension system used in this research. Second, we explain the Q-parameterization control with μ-analysis of a given plant. Third, we formulate the control problem as an optimization problem in the free parameter Q with robust stability and nominal performance as constraints and we assess robust performance with μ. Fourth, the proposed controller design methodology is applied to the simple SISO electromagnetic suspension system employed in this research and a fifth order controller which achieves both robust stability and robust performance is obtained. Finally, several simulation and experimental results are presented. The results showed the effectiveness of the proposed controller design methodology.

Original languageEnglish
Pages604-608
Number of pages5
Publication statusPublished - 1997 Dec 1
Externally publishedYes
EventProceedings of the 1997 IEEE International Conference on Control Applications - Hartford, CT, USA
Duration: 1997 Oct 51997 Oct 7

Other

OtherProceedings of the 1997 IEEE International Conference on Control Applications
CityHartford, CT, USA
Period97/10/597/10/7

ASJC Scopus subject areas

  • Control and Systems Engineering

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  • Cite this

    Mohamed, A. M., Matsumura, F., Namerikawa, T., & Lee, J. H. (1997). Q-parameterization/μ control of an electromagnetic suspension system. 604-608. Paper presented at Proceedings of the 1997 IEEE International Conference on Control Applications, Hartford, CT, USA, .