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A built-in force actuator for active control of lateral rotor vibration in cage induction electrical machines |
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| Authors: | Antti Laiho Kari Tammi |
| Institution: | a VTT Industrial Systems, P.O. Box 13022, FIN-02044 VTT Espoo, Finland b Fortum Service, Hydro- and Windpower Engineering, P.O. Box 100, FIN-00048 FORTUM, Finland c Faculty of Electronics, Communications and Automation, Helsinki University of Technology, FIN-02015 TKK, Finland |
| Abstract: | In this paper means of active control of radial rotor vibrations in electrical machines are considered. We examine a built-in force actuator for active generation of force on the machine rotor. The operation of the actuator is based on electromechanical interaction between the rotor and the stator of the machine. The actuator is given a low-order linear state-space model, which is identified by using simulation data obtained from a detailed time-stepping finite element model of the machine. Simulation results obtained by using real machine data and finite element time-stepping method are presented. |
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