Attenuation of Harmonic Rotor Vibration in a Cage Rotor Induction Machine by a Self-Bearing Force Actuator

Author

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

Author_Institution

VTT Ind. Syst., Espoo, Finland

Volume

45

Issue

12

fYear

2009

Firstpage

5388

Lastpage

5398

Abstract

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.

Keywords

asynchronous machines; electromagnetic actuators; machine bearings; machine control; rotors; stators; vibrations; electromagnetic actuator; flexural rotor vibration; four-pole supplementary winding; harmonic excitation; harmonic rotor vibration attenuation; lateral force generation; machine control method; power 30 kW; self-bearing force actuator; two-pole cage rotor induction machine; Actuators; Attenuation; Design methodology; Electromagnetic forces; Induction generators; Induction machines; Induction motors; Machine windings; Rotors; Vibration control; Active control; bearingless drive; electromagnetic actuator; induction machine; mechanical vibration; rotor-dynamics; self-bearing machine;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2026168

Filename

5326448