An adaptive control method to suppress the maglev track-induced self-excited vibration

Track induced self-excited vibration is a special problem in the EMS (electromagnetic suspension) maglev systems. In this paper, a coupled model of the steel track and the magnetic levitation system is developed, and the principle underlying the self-excited vibration is explored using the Nyquist s...

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Published in2011 International Conference on Consumer Electronics, Communications and Networks pp. 4723 - 4727
Main Authors Danfeng Zhou, Jie Li, Kun Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2011
Subjects
adaptive
Electromagnets
Equations
Frequency control
Frequency estimation
Least squares approximation
LMS
maglev
Medical services
self-excited
vibration
Vibrations
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ISBN1612844588
9781612844589
DOI10.1109/CECNET.2011.5768485

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Abstract Track induced self-excited vibration is a special problem in the EMS (electromagnetic suspension) maglev systems. In this paper, a coupled model of the steel track and the magnetic levitation system is developed, and the principle underlying the self-excited vibration is explored using the Nyquist stability criterion. To eliminate the self-excited vibration, an improved LMS cancellation algorithm with phase compensation (C-LMS algorithm) is presented. To achieve adaptive cancellation, a frequency estimator is employed to estimate the frequency of the vibration and to provide the C-LMS algorithm with a reference signal. Theoretical analysis and numerical simulation show that the proposed adaptive LMS algorithm can effectively eliminate the self-excited vibration.
AbstractList Track induced self-excited vibration is a special problem in the EMS (electromagnetic suspension) maglev systems. In this paper, a coupled model of the steel track and the magnetic levitation system is developed, and the principle underlying the self-excited vibration is explored using the Nyquist stability criterion. To eliminate the self-excited vibration, an improved LMS cancellation algorithm with phase compensation (C-LMS algorithm) is presented. To achieve adaptive cancellation, a frequency estimator is employed to estimate the frequency of the vibration and to provide the C-LMS algorithm with a reference signal. Theoretical analysis and numerical simulation show that the proposed adaptive LMS algorithm can effectively eliminate the self-excited vibration.
Author Danfeng Zhou
Kun Zhang
Jie Li
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  surname: Jie Li
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  organization: Coll. of Mechatron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha, China
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  surname: Kun Zhang
  fullname: Kun Zhang
  organization: Coll. of Mechatron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha, China
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Snippet Track induced self-excited vibration is a special problem in the EMS (electromagnetic suspension) maglev systems. In this paper, a coupled model of the steel...
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StartPage 4723
SubjectTerms adaptive
Electromagnets
Equations
Frequency control
Frequency estimation
Least squares approximation
LMS
maglev
Medical services
self-excited
vibration
Vibrations
Title An adaptive control method to suppress the maglev track-induced self-excited vibration
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