Attenuation of harmonic rotor vibration in a cage rotor induction machine by a self-bearing force actuator

Antti Laiho, Anssi Sinervo, Juha Orivuori, Kari Tammi, Antero Arkkio, Kai Zenger

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    35 Citations (Scopus)


    In this paper, attenuation of flexural rotor vibration in electrical machines is considered. In order to generate force on the machine rotor, an electromagnetic actuator based on self-bearing machine working principle is examined. A control method for attenuating harmonic rotor vibration components is applied in a 30 kW two-pole cage induction machine. The machine is equipped with a four-pole supplementary winding for generation of lateral force on the rotor. Experimental results for the two-pole induction motor are presented. The main contribution of this paper is to apply a control method, specially designed for compensating harmonic excitations, by using a built-in electromagnetic actuator in an induction machine.
    Original languageEnglish
    Pages (from-to)5388-5398
    Number of pages11
    JournalIEEE Transactions on Magnetics
    Issue number12
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed



    • active control
    • bearingless drive
    • electromagnetic actuator
    • induction machine
    • mechanical vibration
    • rotor-dynamics
    • self-bearing machine

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