Electromechanical interaction in eccentric-rotor cage induction machine equipped with a self-bearing force actuator

Antti Laiho (Corresponding Author), Kari Tammi, Juha Orivuori, Anssi Sinervo, Kai Zenger, Antero Arkkio

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    In this paper, flexural rotor vibration in a two-pole cage induction machine equipped with a built-in force actuator is examined. The built-in force actuator is based on the self-bearing machine technology in which a supplementary winding is placed in the machine for force production. The built-in force actuator enables active vibration control, but also it enables excitation of the machine for purposes of condition monitoring, for instance. A low-order parametric model is derived for the actuator-rotor system. In the model, the arbitrary eccentric rotor motion is coupled with the voltage-flux equations for the supplementary winding and eccentric rotor cage. Furthermore, based on frequency-domain system identification, a control method is examined for compensating synchronous rotor vibration. Experimental results are given for a two-pole cage induction motor. The main contribution of the article is to couple eccentric rotor motion, the built-in force actuator and the mechanical rotor model to obtain a low-order parametric model of the actuator-rotor system which can be applied to control design for rotor vibration suppression.
    Original languageEnglish
    Pages (from-to)519-529
    Number of pages11
    JournalJournal of System Design and Dynamics
    Volume3
    Issue number4
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed
    Event11th International Symposium on Magnetic Bearings, ISMB-11 - Nara, Japan
    Duration: 26 Aug 200829 Aug 2008

    Fingerprint

    Bearings (structural)
    Actuators
    Rotors
    Poles
    Condition monitoring
    Vibration control
    Induction motors
    Identification (control systems)

    Keywords

    • rotor vibration
    • electrical machines
    • magnetic actuator
    • rotordynamics
    • self-bearing machines
    • active control17

    Cite this

    Laiho, Antti ; Tammi, Kari ; Orivuori, Juha ; Sinervo, Anssi ; Zenger, Kai ; Arkkio, Antero. / Electromechanical interaction in eccentric-rotor cage induction machine equipped with a self-bearing force actuator. In: Journal of System Design and Dynamics. 2009 ; Vol. 3, No. 4. pp. 519-529.
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    title = "Electromechanical interaction in eccentric-rotor cage induction machine equipped with a self-bearing force actuator",
    abstract = "In this paper, flexural rotor vibration in a two-pole cage induction machine equipped with a built-in force actuator is examined. The built-in force actuator is based on the self-bearing machine technology in which a supplementary winding is placed in the machine for force production. The built-in force actuator enables active vibration control, but also it enables excitation of the machine for purposes of condition monitoring, for instance. A low-order parametric model is derived for the actuator-rotor system. In the model, the arbitrary eccentric rotor motion is coupled with the voltage-flux equations for the supplementary winding and eccentric rotor cage. Furthermore, based on frequency-domain system identification, a control method is examined for compensating synchronous rotor vibration. Experimental results are given for a two-pole cage induction motor. The main contribution of the article is to couple eccentric rotor motion, the built-in force actuator and the mechanical rotor model to obtain a low-order parametric model of the actuator-rotor system which can be applied to control design for rotor vibration suppression.",
    keywords = "rotor vibration, electrical machines, magnetic actuator, rotordynamics, self-bearing machines, active control17",
    author = "Antti Laiho and Kari Tammi and Juha Orivuori and Anssi Sinervo and Kai Zenger and Antero Arkkio",
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    Electromechanical interaction in eccentric-rotor cage induction machine equipped with a self-bearing force actuator. / Laiho, Antti (Corresponding Author); Tammi, Kari; Orivuori, Juha; Sinervo, Anssi; Zenger, Kai; Arkkio, Antero.

    In: Journal of System Design and Dynamics, Vol. 3, No. 4, 2009, p. 519-529.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Electromechanical interaction in eccentric-rotor cage induction machine equipped with a self-bearing force actuator

    AU - Laiho, Antti

    AU - Tammi, Kari

    AU - Orivuori, Juha

    AU - Sinervo, Anssi

    AU - Zenger, Kai

    AU - Arkkio, Antero

    N1 - Project code: 26153

    PY - 2009

    Y1 - 2009

    N2 - In this paper, flexural rotor vibration in a two-pole cage induction machine equipped with a built-in force actuator is examined. The built-in force actuator is based on the self-bearing machine technology in which a supplementary winding is placed in the machine for force production. The built-in force actuator enables active vibration control, but also it enables excitation of the machine for purposes of condition monitoring, for instance. A low-order parametric model is derived for the actuator-rotor system. In the model, the arbitrary eccentric rotor motion is coupled with the voltage-flux equations for the supplementary winding and eccentric rotor cage. Furthermore, based on frequency-domain system identification, a control method is examined for compensating synchronous rotor vibration. Experimental results are given for a two-pole cage induction motor. The main contribution of the article is to couple eccentric rotor motion, the built-in force actuator and the mechanical rotor model to obtain a low-order parametric model of the actuator-rotor system which can be applied to control design for rotor vibration suppression.

    AB - In this paper, flexural rotor vibration in a two-pole cage induction machine equipped with a built-in force actuator is examined. The built-in force actuator is based on the self-bearing machine technology in which a supplementary winding is placed in the machine for force production. The built-in force actuator enables active vibration control, but also it enables excitation of the machine for purposes of condition monitoring, for instance. A low-order parametric model is derived for the actuator-rotor system. In the model, the arbitrary eccentric rotor motion is coupled with the voltage-flux equations for the supplementary winding and eccentric rotor cage. Furthermore, based on frequency-domain system identification, a control method is examined for compensating synchronous rotor vibration. Experimental results are given for a two-pole cage induction motor. The main contribution of the article is to couple eccentric rotor motion, the built-in force actuator and the mechanical rotor model to obtain a low-order parametric model of the actuator-rotor system which can be applied to control design for rotor vibration suppression.

    KW - rotor vibration

    KW - electrical machines

    KW - magnetic actuator

    KW - rotordynamics

    KW - self-bearing machines

    KW - active control17

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